Minor fixes

Add support for latest uniclass and add Uniclass July 2023
fix displaying undefined or userdefined units in cost schedules
2026-08-21 04:32:23 +00:00 · 2023-10-26 13:08:30 +11:00 · 2023-10-26 13:08:30 +11:00 · 2023-10-25 15:01:52 +01:00 · 2023-10-25 13:54:13 +01:00 · 2023-10-23 20:58:59 +02:00
568 changed files with 1132812 additions and 9989 deletions
@@ -0,0 +1,57 @@
+name: ci-bcf-pypi
+
+on:
+  schedule:
+    #         ┌───────────── minute (0 - 59)
+    #         │  ┌───────────── hour (0 - 23)
+    #         │  │ ┌───────────── day of the month (1 - 31)
+    #         │  │ │ ┌───────────── month (1 - 12 or JAN-DEC)
+    #         │  │ │ │ ┌───────────── day of the week (0 - 6 or SUN-SAT)
+    #         *  * * * *
+    - cron: "0 0 18 * *"
+  push:
+    paths:
+      - '.github/workflows/ci-bcf-pypi.yml'
+  workflow_dispatch:
+
+env:
+  major: 0
+  minor: 0
+  name: ifcopenshell
+
+jobs:
+  activate:
+    runs-on: ubuntu-latest
+    if: |
+      github.repository == 'IfcOpenShell/IfcOpenShell'
+    steps:
+    - name: Set env
+      run: echo ok go
+
+  build:
+    needs: activate
+    name: ${{ matrix.config.name }}-${{ matrix.pyver }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v2 # https://github.com/actions/checkout
+      - uses: actions/setup-python@v2 # https://github.com/actions/setup-python
+        with:
+          python-version: '3.10' # Version range or exact version of a Python version to use, using SemVer's version range syntax
+          architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
+      - run: echo ${{ env.DATE }}
+      - name: Get current date
+        id: date
+        run: echo "::set-output name=date::$(date +'%y%m%d')"
+      - name: Compile
+        run: |
+          pip install build
+          cd src/bcf &&
+          make dist
+      - name: Publish a Python distribution to PyPI
+        uses: ortega2247/pypi-upload-action@master
+        with:
+          user: __token__
+          password: ${{ secrets.PYPI_API_TOKEN }}
+          packages_dir: src/bcf/dist
@@ -1,37 +0,0 @@
-name: ci-bcf
-
-on:
-  push:
-
-jobs:
-  activate:
-    runs-on: ubuntu-latest
-    if: |
-      github.repository == 'IfcOpenShell/IfcOpenShell' &&
-      contains(github.event.head_commit.message, '[bcf release]')
-    steps:
-      - run: echo ok go
-  upload:
-    needs: activate
-    name: Upload BCF package to Pypi
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
-        with:
-          python-version: '3.10'
-      - name: Build package
-        run: |
-          cd src/bcf
-          pip install build
-          python -m build
-      - name: Test
-        run: |
-          cd src/bcf
-          make test
-      - name: Publish package
-        uses: pypa/gh-action-pypi-publish@release/v1
-        with:
-          user: __token__
-          password: ${{ secrets.PYPI_TOKEN }}
-          packages_dir: src/bcf/dist
@@ -95,4 +95,4 @@ jobs:
          sudo /usr/bin/python tests.py
          cd ../src/ifcopenshell-python
          mv ifcopenshell ifcopenshell-local # Force testing on installed module
-          make test
+          make test-safe
@@ -121,4 +121,4 @@ jobs:
          sudo /usr/bin/python tests.py
          cd ../src/ifcopenshell-python
          mv ifcopenshell ifcopenshell-local # Force testing on installed module
-          make test
+          make test-safe
@@ -96,5 +96,8 @@ src/ifcopenshell-python/ifcopenshell/ifcopenshell_wrapper.py
 # apple
 .DS_Store

+# clangd cache
+.cache
+
 # Brickschema
-src/blenderbim/blenderbim/bim/schema/Brick.ttl
+src/blenderbim/blenderbim/bim/schema/Brick.ttl
@@ -55,7 +55,6 @@ Those marked with an asterisk are part of IfcOpenShell.
 | ifcblender                | Historic Blender IFC import add-on                                    | LGPL-3.0-or-later\* |
 | ifccityjson               | Convert CityJSON to IFC                                               | LGPL-3.0-or-later   |
 | ifcclash                  | Clash detection library and CLI app                                   | LGPL-3.0-or-later   |
-| ifccobie                  | Extract IFC data for COBie handover requirements                      | LGPL-3.0-or-later   |
 | ifcconvert                | CLI app to convert IFC to many other formats                          | LGPL-3.0-or-later\* |
 | ifccsv                    | Library and CLI app to export and import schedules from IFC           | LGPL-3.0-or-later   |
 | ifcdiff                   | Compare changes between IFC models                                    | LGPL-3.0-or-later   |
@@ -0,0 +1,43 @@
+################################################################################
+#                                                                              #
+# This file is part of IfcOpenShell.                                           #
+#                                                                              #
+# IfcOpenShell is free software: you can redistribute it and/or modify         #
+# it under the terms of the Lesser GNU General Public License as published by  #
+# the Free Software Foundation, either version 3.0 of the License, or          #
+# (at your option) any later version.                                          #
+#                                                                              #
+# IfcOpenShell is distributed in the hope that it will be useful,              #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of               #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 #
+# Lesser GNU General Public License for more details.                          #
+#                                                                              #
+# You should have received a copy of the Lesser GNU General Public License     #
+# along with this program. If not, see <http://www.gnu.org/licenses/>.         #
+#                                                                              #
+################################################################################
+
+if(NOT EXISTS "@CMAKE_BINARY_DIR@/install_manifest.txt")
+    message(FATAL_ERROR "Cannot find install manifest: @CMAKE_BINARY_DIR@/install_manifest.txt")
+endif()
+
+file(READ "@CMAKE_BINARY_DIR@/install_manifest.txt" files)
+string(REGEX REPLACE "\n" ";" files "${files}")
+
+foreach(file ${files})
+    message(STATUS "Uninstalling $ENV{DESTDIR}${file}")
+
+    if(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+        exec_program(
+            "@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\""
+            OUTPUT_VARIABLE rm_out
+            RETURN_VALUE rm_retval
+        )
+
+        if(NOT "${rm_retval}" STREQUAL 0)
+            message(FATAL_ERROR "Problem when removing $ENV{DESTDIR}${file}")
+        endif()
+    else(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
+        message(STATUS "File $ENV{DESTDIR}${file} does not exist.")
+    endif()
+endforeach()
@@ -4,6 +4,7 @@ set MY_PY_VER=%PY_VER:.=%
 set LIBXML2="%LIBRARY_PREFIX%/lib/libxml2.lib"

 cmake -G "Ninja" ^
+ -D SCHEMA_VERSIONS="2x3;4;4x1;4x3;4x3_add1" ^
 -D CMAKE_BUILD_TYPE:STRING=Release ^
 -D CMAKE_INSTALL_PREFIX:FILEPATH="%LIBRARY_PREFIX%" ^
 -D CMAKE_PREFIX_PATH:FILEPATH="%LIBRARY_PREFIX%" ^
@@ -13,6 +13,7 @@ if [ `uname` == Darwin ]; then
 fi

 cmake -G Ninja \
+ -DSCHEMA_VERSIONS="2x3;4;4x1;4x3;4x3_add1" \
 -DCMAKE_BUILD_TYPE=Release \
 -DCMAKE_INSTALL_PREFIX=$PREFIX \
  ${CMAKE_PLATFORM_FLAGS[@]} \
@@ -36,10 +36,10 @@ requirements:

  run:
    - python
-    - boost-cpp
-    - occt ==7.7.0
+    - {{ pin_compatible('occt', max_pin='x.x.x') }}
+    - {{ pin_compatible('cgal-cpp', max_pin='x.x.x') }}
+    - {{ pin_compatible('boost-cpp', max_pin='x.x.x') }}
    - libxml2
-    - cgal-cpp
    - hdf5
    - mpfr
    - gmp  # [unix]
@@ -1,3 +1,9 @@
+VERSION:=`date '+%y%m%d'`
+SED:=sed -i
+ifeq ($(UNAME_S),Darwin)
+SED:=sed -i '' -e
+endif
+
 .PHONY: ci
 ci:
 	tox
@@ -12,6 +18,13 @@ models:
 	cd src && xsdata generate -p bcf.v2.model --unnest-classes --kw-only --slots -ds Google bcf/v2/xsd
 	cd src && xsdata generate -p bcf.v3.model --unnest-classes --kw-only --slots -ds Google bcf/v3/xsd

+.PHONY: dist
+dist:
+	rm -rf dist
+	$(SED) "s/999999/$(VERSION)/" pyproject.toml
+	python -m build
+	$(SED) "s/$(VERSION)/999999/" pyproject.toml
+
 # .PHONY
 # api:
-#     openapi-python-client generate --url https://api.swaggerhub.com/apis/buildingSMART/BCF/3.0
+#     openapi-python-client generate --url https://api.swaggerhub.com/apis/buildingSMART/BCF/3.0
@@ -1,84 +1,5 @@
 # bcf

-A simple Python implementation of BCF.
-Manipulation of BCF-XML is available via `bcfxml.py` and manipulation of BCF-API
-is available via `bcfapi.py`.
-
-It tries to support BCF-XML version 2.1 and 3.0, and BCF-API 3.0.
-
-## bcfxml
-
-The `bcfxml.load` function lets you read a BCF-XML file.
-It takes care of using the right version based on the "bcf.version" file contained in the BCF package.
-
-The BCF files are extracted and parsed on-demand, and edits are stored in memory until you call the `save` method.
-
-```python
-from bcf.bcfxml import load
-
-# Load a project
-with load("/path/to/file.bcf") as bcfxml:
-    project = bcfxml.project
-    print(project.name)
-
-    # To edit a project, just modify the object directly
-    bcfxml.project.name = "New name"
-
-    # Get a dictionary of topics
-    topics = bcfxml.topics
-
-    for topic_guid, topic_handler in bcfxml.topics.items():
-        topic = topic_handler.topic
-        print("Topic guid is", topic.guid)
-        print("Topic title is", topic.title)
-
-        # Fetch extra data about a topic
-        header = topic_handler.header
-        comments = topic_handler.comments
-        viewpoints = topic_handler.viewpoints
-
-        for comment in comments:
-            print(comment.guid)
-            print(comment.comment)
-            print(comment.author)
-
-    # Get a particular topic
-    topic = bcfxml.get_topic(guid)
-
-    # Modify a topic
-    topic.title = "New title"
-
-    bcfxml.save()
-```
-
-## bcfapi
-
-The `bcfapi` module lets you interact with the BCF-API standard.
-
-```python
-from bcf.v3.bcfapi import FoundationClient, BcfClient
-
-foundation_client = FoundationClient("YOUR_CLIENT_ID", "YOUR_CLIENT_SECRET", "OPENCDE_BASEURL")
-auth_methods = foundation_client.get_auth_methods()
-
-# Our library currently only implements the authorization_code flow
-if "authorization_code" in auth_methods:
-    foundation_client.login()
-
-bcf_client = BcfClient(foundation_client)
-
-versions = foundation_client.get_versions()
-for version in versions:
-if "3.0" in versions:
-    if version["api_id"] == "bcf" and version["version_id"] == "3.0":
-        bcf_client.set_version(version)
-
-data = bcf_client.get_projects()
-print(data)
-project_id = data[0]["project_id"]
-print(project_id)
-data = bcf_client.get_project(project_id)
-print(data)
-data = bcf_client.get_extensions(project_id)
-print(data)
-```
+A simple Python implementation of the BCF standard. Manipulation of BCF-XML is
+available via `bcfxml.py` and manipulation of BCF-API is available via
+`bcfapi.py`.
@@ -17,7 +17,7 @@ dependencies = [
    "numpy",
    "ifcopenshell",
 ]
-version = "0.0.1"
+version = "0.0.999999"
 classifiers = [
    "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
    "Operating System :: OS Independent",
@@ -76,7 +76,7 @@ deps =
    black
    isort
    pylint
-commands = 
+commands =
    black {posargs:.}
    isort {posargs:.}
    pylint {posargs:.} --output-format=colorized
@@ -138,4 +138,4 @@ max-attributes = 10

 [tool.pylint.format]
 expected-line-ending-format = "LF"
-max-line-length = 120
+max-line-length = 120
@@ -38,22 +38,25 @@ endif
 VERSION:=`date '+%y%m%d'`
 LAST_COMMIT_HASH:=$(shell git rev-parse HEAD)
 PYVERSION:=py310
+PYPI_IMP:=cp

 ifeq ($(PYVERSION), py39)
 PYLIBDIR:=python3.9
 PYNUMBER:=39
+PYPI_VERSION:=3.9
 endif
 ifeq ($(PYVERSION), py310)
 PYLIBDIR:=python3.10
 PYNUMBER:=310
+PYPI_VERSION:=3.10
 endif

 ifeq ($(PLATFORM), linux)
+PYPI_PLATFORM:=--platform manylinux_2_17_x86_64
 ifeq ($(PYVERSION), py39)
 HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/2.3.4/download/linux-64/hpp-fcl-2.3.4-py39h40a70d0_0.conda
 EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/3.1.0/download/linux-64/eigenpy-3.1.0-py39hdfdd6bb_0.conda
 BOOST_URL:=https://anaconda.org/conda-forge/boost/1.78.0/download/linux-64/boost-1.78.0-py39h7c9e3ff_4.tar.bz2
-QHULL_URL:=https://anaconda.org/conda-forge/qhull/2020.2/download/linux-64/qhull-2020.2-h4bd325d_2.tar.bz2
 LXML_URL:=https://files.pythonhosted.org/packages/19/d9/a69c6aff5673554df48120565a14a50eaa41d29ae03b02faa0b023666318/lxml-4.6.3-cp39-cp39-manylinux2014_x86_64.whl
 SHAPELY_URL:=https://files.pythonhosted.org/packages/2d/f2/8ec281d357e8bb7d08dc8d727f0e4c8ef3dae7d3fa75c69c8e452bb82d50/shapely-2.0.1-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
 PILLOW_URL:=https://files.pythonhosted.org/packages/01/61/3ff85fb4bb596ce3d223c8fcf93c8df5c12bc8899dfb4fb3cb1c5b20dd5f/Pillow-9.2.0-cp39-cp39-manylinux_2_28_x86_64.whl
@@ -62,23 +65,23 @@ ifeq ($(PYVERSION), py310)
 HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/2.3.4/download/linux-64/hpp-fcl-2.3.4-py310h995690b_0.conda
 EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/3.1.0/download/linux-64/eigenpy-3.1.0-py310hf02b7e0_0.conda
 BOOST_URL:=https://anaconda.org/conda-forge/boost/1.78.0/download/linux-64/boost-1.78.0-py310hc4a4660_4.tar.bz2
-QHULL_URL:=https://anaconda.org/conda-forge/qhull/2020.2/download/linux-64/qhull-2020.2-h4bd325d_2.tar.bz2
 LXML_URL:=https://files.pythonhosted.org/packages/25/1e/19b46d8e8881fe0df2e20945d51919eeb1817836d62a90efa8506530e45c/lxml-4.8.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_24_x86_64.whl
 SHAPELY_URL:=https://files.pythonhosted.org/packages/a8/a5/403728b5614b28083f6424dfdefec5fcf58068495fb03bb08532671c642f/shapely-2.0.1-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
 PILLOW_URL:=https://files.pythonhosted.org/packages/f6/51/320986ebd6d46a0e95c2240468ced73153b691ce07617078bcdf30c609ec/Pillow-9.2.0-cp310-cp310-manylinux_2_28_x86_64.whl
 endif
 ASSIMP_URL:=https://anaconda.org/conda-forge/assimp/5.0.1/download/linux-64/assimp-5.0.1-hedfc422_6.tar.bz2
+QHULL_URL:=https://anaconda.org/conda-forge/qhull/2020.2/download/linux-64/qhull-2020.2-h4bd325d_2.tar.bz2
 OCTOMAP_URL:=https://anaconda.org/conda-forge/octomap/1.9.8/download/linux-64/octomap-1.9.8-h924138e_0.tar.bz2
 BOOSTCPP_URL:=https://anaconda.org/conda-forge/boost-cpp/1.78.0/download/linux-64/boost-cpp-1.78.0-h6582d0a_3.conda
 ZLIB_URL:=https://anaconda.org/conda-forge/zlib/1.2.11/download/linux-64/zlib-1.2.11-h516909a_1010.tar.bz2
 endif

 ifeq ($(PLATFORM), macos)
+PYPI_PLATFORM:=--platform macosx_10_9_x86_64
 ifeq ($(PYVERSION), py39)
 HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/2.3.4/download/osx-64/hpp-fcl-2.3.4-py39hd85b194_0.conda
 EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/3.1.0/download/osx-64/eigenpy-3.1.0-py39hc4d6e28_0.conda
 BOOST_URL:=https://anaconda.org/conda-forge/boost/1.78.0/download/osx-64/boost-1.78.0-py39h953a6b8_4.tar.bz2
-QHULL_URL:=https://anaconda.org/conda-forge/qhull/2020.2/download/osx-64/qhull-2020.2-h940c156_2.tar.bz2
 LXML_URL:=https://files.pythonhosted.org/packages/b8/74/a71f7ad72e8db54ce899efab84507b801660750cbbfa6a39e6717557d36a/lxml-4.6.3-cp39-cp39-macosx_10_9_x86_64.whl
 SHAPELY_URL:=https://files.pythonhosted.org/packages/36/a4/7e542a209f862f967d7cb8e939eff155f4294a27d17e16441fb8bdd51a2c/shapely-2.0.1-cp39-cp39-macosx_10_9_x86_64.whl
 PILLOW_URL:=https://files.pythonhosted.org/packages/88/7a/ddfe28b485b623361457d4783007c1f9ba83a87f93e7fec32f64793efb6c/Pillow-9.2.0-cp39-cp39-macosx_10_10_x86_64.whl
@@ -87,23 +90,23 @@ ifeq ($(PYVERSION), py310)
 HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/2.3.4/download/osx-64/hpp-fcl-2.3.4-py310h1db6f5f_0.conda
 EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/3.1.0/download/osx-64/eigenpy-3.1.0-py310h43da829_0.conda
 BOOST_URL:=https://anaconda.org/conda-forge/boost/1.78.0/download/osx-64/boost-1.78.0-py310h3e792ce_4.tar.bz2
-QHULL_URL:=https://anaconda.org/conda-forge/qhull/2020.2/download/osx-64/qhull-2020.2-h940c156_2.tar.bz2
 LXML_URL:=https://files.pythonhosted.org/packages/a1/44/17b7dac7a18807d30e2fe10c3328c152808f5464565e230bfd0e77f178c6/lxml-4.8.0-cp310-cp310-macosx_10_15_x86_64.whl
 SHAPELY_URL:=https://files.pythonhosted.org/packages/1f/2a/dc3353c2431cf53e8d04bb8fba27e584410ca3435c9c85f76d71bf0c0e80/shapely-2.0.1-cp310-cp310-macosx_10_9_x86_64.whl
 PILLOW_URL:=https://files.pythonhosted.org/packages/d8/60/b13c00d403f34110e96c1b5c0afa73ce461efe3fe960c3a7e3e7fe190d82/Pillow-9.2.0-cp310-cp310-macosx_10_10_x86_64.whl
 endif
 ASSIMP_URL:=https://anaconda.org/conda-forge/assimp/5.0.1/download/osx-64/assimp-5.0.1-h1224e73_6.tar.bz2
+QHULL_URL:=https://anaconda.org/conda-forge/qhull/2020.2/download/osx-64/qhull-2020.2-h940c156_2.tar.bz2
 OCTOMAP_URL:=https://anaconda.org/conda-forge/octomap/1.9.8/download/osx-64/octomap-1.9.8-hb8565cd_0.tar.bz2
 BOOSTCPP_URL:=https://anaconda.org/conda-forge/boost-cpp/1.78.0/download/osx-64/boost-cpp-1.78.0-hf5ba120_3.conda
 ZLIB_URL:=https://anaconda.org/conda-forge/zlib/1.2.11/download/osx-64/zlib-1.2.11-h7795811_1010.tar.bz2
 endif

 ifeq ($(PLATFORM), macosm1)
+PYPI_PLATFORM:=--platform macosx_11_0_arm64
 ifeq ($(PYVERSION), py39)
 HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/2.3.4/download/osx-arm64/hpp-fcl-2.3.4-py39hc34188a_0.conda
 EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/3.1.0/download/osx-arm64/eigenpy-3.1.0-py39h13cfc01_0.conda
 BOOST_URL:=https://anaconda.org/conda-forge/boost/1.78.0/download/osx-arm64/boost-1.78.0-py39h99de9ae_4.tar.bz2
-QHULL_URL:=https://anaconda.org/conda-forge/qhull/2020.2/download/osx-arm64/qhull-2020.2-hc021e02_2.tar.bz2
 LXML_URL:=https://anaconda.org/conda-forge/lxml/4.9.1/download/osx-arm64/lxml-4.9.1-py39h9eb174b_0.tar.bz2
 SHAPELY_URL:=https://files.pythonhosted.org/packages/ea/aa/45fbd031edf3149cb767d8b9f9db45d5faf0324d743c6b8fb0298cc022d0/shapely-2.0.1-cp39-cp39-macosx_11_0_arm64.whl
 PILLOW_URL:=https://files.pythonhosted.org/packages/aa/bc/21097cd891dd2fa02f2b3d767e02e883e026482e59d29975d1bc30024aa3/Pillow-9.2.0-cp39-cp39-macosx_11_0_arm64.whl
@@ -112,18 +115,19 @@ ifeq ($(PYVERSION), py310)
 HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/2.3.4/download/osx-arm64/hpp-fcl-2.3.4-py310h46fc4cd_0.conda
 EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/3.1.0/download/osx-arm64/eigenpy-3.1.0-py310ha2643af_0.conda
 BOOST_URL:=https://anaconda.org/conda-forge/boost/1.78.0/download/osx-arm64/boost-1.78.0-py310h629746b_4.tar.bz2
-QHULL_URL:=https://anaconda.org/conda-forge/qhull/2020.2/download/osx-arm64/qhull-2020.2-hc021e02_2.tar.bz2
 LXML_URL:=https://anaconda.org/conda-forge/lxml/4.9.1/download/osx-arm64/lxml-4.9.1-py310h02f21da_0.tar.bz2
 SHAPELY_URL:=https://files.pythonhosted.org/packages/ec/41/d59208743e737184e1b403e95a937aebb022b8459e99efbcd5208fc8be46/shapely-2.0.1-cp310-cp310-macosx_11_0_arm64.whl
 PILLOW_URL:=https://files.pythonhosted.org/packages/0c/5f/117b653cad585f3aedfe0de996c292e67d4b020ed77f652e5a6c8c24f908/Pillow-9.2.0-cp310-cp310-macosx_11_0_arm64.whl
 endif
 ASSIMP_URL:=https://anaconda.org/conda-forge/assimp/5.0.1/download/osx-arm64/assimp-5.0.1-h0f81e16_7.tar.bz2
+QHULL_URL:=https://anaconda.org/conda-forge/qhull/2020.2/download/osx-arm64/qhull-2020.2-hc021e02_2.tar.bz2
 OCTOMAP_URL:=https://anaconda.org/conda-forge/octomap/1.9.8/download/osx-arm64/octomap-1.9.8-hffc8910_0.tar.bz2
 BOOSTCPP_URL:=https://anaconda.org/conda-forge/boost-cpp/1.78.0/download/osx-arm64/boost-cpp-1.78.0-h9ed8d21_3.conda
 ZLIB_URL:=https://anaconda.org/conda-forge/zlib/1.2.11/download/osx-arm64/zlib-1.2.11-h90dfc92_1014.tar.bz2
 endif

 ifeq ($(PLATFORM), win)
+PYPI_PLATFORM:=--platform win_amd64
 ifeq ($(PYVERSION), py39)
 HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/2.3.4/download/win-64/hpp-fcl-2.3.4-py39h39b25cb_0.conda
 EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/3.1.0/download/win-64/eigenpy-3.1.0-py39hb6c915b_0.conda
@@ -140,7 +144,8 @@ LXML_URL:=https://files.pythonhosted.org/packages/f6/71/65c80a4caa1617a4c6e8fe15
 SHAPELY_URL:=https://files.pythonhosted.org/packages/81/8a/7ac076a86b2632f1872284c5e60ed5f2fc26094875a85b35d9fa17b52504/shapely-2.0.1-cp310-cp310-win_amd64.whl
 PILLOW_URL:=https://files.pythonhosted.org/packages/02/55/67a3c17b9e7d972ed8c246f104da99ca4f3ea42fba566697e479011b84b6/Pillow-9.2.0-cp310-cp310-win_amd64.whl
 endif
-ASSIMP_URL:=https://anaconda.org/conda-forge/assimp/5.0.1/download/win-64/assimp-5.0.1-hc2aa0de_6.tar.bz2
+ASSIMP_URL:=https://anaconda.org/conda-forge/assimp/5.2.5/download/win-64/assimp-5.2.5-h4dcb625_0.tar.bz2
+QHULL_URL:=https://anaconda.org/conda-forge/qhull/2020.2/download/win-64/qhull-2020.2-h70d2c02_2.tar.bz2
 OCTOMAP_URL:=https://anaconda.org/conda-forge/octomap/1.9.8/download/win-64/octomap-1.9.8-h91493d7_0.tar.bz2
 BOOSTCPP_URL:=https://anaconda.org/conda-forge/boost-cpp/1.78.0/download/win-64/boost-cpp-1.78.0-h9f4b32c_3.conda
 ZLIB_URL:=https://anaconda.org/conda-forge/zlib/1.2.11/download/win-64/zlib-1.2.11-h62dcd97_1010.tar.bz2
@@ -164,7 +169,7 @@ endif
 	cp -r blenderbim/* dist/blenderbim/

 	# Provides IfcOpenShell Python functionality
-	cd dist/working && wget https://s3.amazonaws.com/ifcopenshell-builds/ifcopenshell-python-$(PYNUMBER)-v0.7.0-fc50bdd-$(PLATFORM)64.zip
+	cd dist/working && wget https://s3.amazonaws.com/ifcopenshell-builds/ifcopenshell-python-$(PYNUMBER)-v0.7.0-6c9e130-$(PLATFORM)64.zip
 	cd dist/working && unzip ifcopenshell-python*
 	cp -r dist/working/ifcopenshell dist/blenderbim/libs/site/packages/

@@ -194,8 +199,10 @@ endif
 	cp -r dist/working/IfcOpenShell-0.7.0/src/ifcbimtester/bimtester dist/blenderbim/libs/site/packages/
 	# Provides IFCTester functionality
 	cp -r dist/working/IfcOpenShell-0.7.0/src/ifctester/ifctester dist/blenderbim/libs/site/packages/
-	# Provides IFCCOBie functionality
-	cp -r dist/working/IfcOpenShell-0.7.0/src/ifccobie/* dist/blenderbim/libs/site/packages/
+	# Provides IFCFM functionality
+	cp -r dist/working/IfcOpenShell-0.7.0/src/ifcfm/ifcfm dist/blenderbim/libs/site/packages/
+	# Provides bSDD functionality
+	cp -r dist/working/IfcOpenShell-0.7.0/src/bsdd/* dist/blenderbim/libs/site/packages/
 	# Provides IFCDiff functionality
 	cp -r dist/working/IfcOpenShell-0.7.0/src/ifcdiff/* dist/blenderbim/libs/site/packages/
 	# Provides IFCCSV functionality
@@ -376,6 +383,10 @@ endif
 	mkdir dist/working
 	cd dist/working && $(PYTHON) -m venv env
 	cd dist/working && mkdir site-packages
+	# Required by IfcCSV
+	cd dist/working && . env/bin/activate && $(PIP) install pandas $(PYPI_PLATFORM) --python-version $(PYPI_VERSION) --implementation $(PYPI_IMP) --only-binary=:all: --target=./site-packages
+	cd dist/working && . env/bin/activate && $(PIP) install openpyxl --target=./site-packages
+	cd dist/working && . env/bin/activate && $(PIP) install odfpy --target=./site-packages
 	# Required by IFCCityJSON
 	cd dist/working && . env/bin/activate && $(PIP) install cjio --target=./site-packages
 	# Provides express rule validation for ifcopenshell.validate
@@ -426,8 +437,7 @@ ifeq ($(PLATFORM), win)
 endif
 	rm -rf dist/working

-	# Required by hpp-fcl except on Windows
-ifneq ($(PLATFORM), win)
+	# Required by hpp-fcl
 	mkdir dist/working
 	cd dist/working && wget $(QHULL_URL)
 	cd dist/working && tar -xf qhull*
@@ -440,8 +450,10 @@ endif
 ifeq ($(PLATFORM), macosm1)
 	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
 endif
-	rm -rf dist/working
+ifeq ($(PLATFORM), win)
+	cp -r dist/working/Library/bin/*.dll dist/blenderbim/libs/site/packages/hppfcl/
 endif
+	rm -rf dist/working

 	# Required by hpp-fcl
 	mkdir dist/working
@@ -476,7 +488,7 @@ ifeq ($(PLATFORM), macosm1)
 	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
 endif
 ifeq ($(PLATFORM), win)
-	# Uh, do nothing, apparently? No DLLs are shipped.
+	cp -r dist/working/Library/bin/*.dll dist/blenderbim/libs/site/packages/hppfcl/
 endif
 	rm -rf dist/working

@@ -582,28 +594,6 @@ endif
 	cd dist/working/parse_type-0.5.2/ && cp -r parse_type ../../blenderbim/libs/site/packages/
 	rm -rf dist/working

-	# Required by IFCCOBie for XLSX support
-	# TODO: see if we can replace this with openpyxl which does both read/write
-	mkdir dist/working
-	cd dist/working && wget https://files.pythonhosted.org/packages/0c/bc/82d6783f83f65f56d8b77d052773c4a2f952fa86385f0cd54e1e006658d7/XlsxWriter-1.2.9.tar.gz
-	cd dist/working && tar -xzvf XlsxWriter*
-	cd dist/working/XlsxWriter-1.2.9/ && cp -r xlsxwriter ../../blenderbim/libs/site/packages/
-	rm -rf dist/working
-
-	# Required by IFCCOBie for ODS support
-	mkdir dist/working
-	cd dist/working && wget https://files.pythonhosted.org/packages/97/73/8ade73f6749177003f7ce3304f524774adda96e6aaab30ea79fd8fda7934/odfpy-1.4.1.tar.gz
-	cd dist/working && tar -xzvf odfpy*
-	cd dist/working/odfpy-1.4.1/ && cp -r odf ../../blenderbim/libs/site/packages/
-	rm -rf dist/working
-
-	# Required by odfpy
-	mkdir dist/working
-	cd dist/working && wget https://files.pythonhosted.org/packages/a4/5f/f8aa58ca0cf01cbcee728abc9d88bfeb74e95e6cb4334cfd5bed5673ea77/defusedxml-0.6.0.tar.gz
-	cd dist/working && tar -xzvf defusedxml*
-	cd dist/working/defusedxml-0.6.0/ && cp -r defusedxml ../../blenderbim/libs/site/packages/
-	rm -rf dist/working
-
 	# Required by augin
 	mkdir dist/working
 	cd dist/working && wget https://files.pythonhosted.org/packages/76/b4/b7baffbda025efd5dc8fcd8d2e953e3aa939c236a484084fa8f4c3588ee9/boto3-1.17.17.tar.gz
@@ -30,6 +30,7 @@ modules = {
    "project": None,
    "search": None,
    "bcf": None,
+    "bsdd": None,
    "root": None,
    "unit": None,
    "model": None,
@@ -44,7 +45,7 @@ modules = {
    "void": None,
    "aggregate": None,
    "geometry": None,
-    "cobie": None,
+    "fm": None,
    "resource": None,
    "cost": None,
    "sequence": None,
@@ -77,6 +78,7 @@ modules = {
    "augin": None,
    "debug": None,
    "ifcgit": None,
+    "covering": None,
    # Uncomment this line to enable loading of the demo module. Happy hacking!
    # The name "demo" must correlate to a folder name in `bim/module/`.
    # "demo": None,
@@ -123,33 +125,47 @@ classes = [
    ui.BIM_UL_generic,
    ui.BIM_UL_topics,
    ui.BIM_ADDON_preferences,
-    # Project overview
-    ui.BIM_PT_project_info,
-    ui.BIM_PT_project_setup,
-    ui.BIM_PT_geometry,
-    ui.BIM_PT_tab_grouping_and_filtering,
    # Tabs panel
    ui.BIM_PT_tabs,
+    # Project overview
+    ui.BIM_PT_tab_project_info,
+    ui.BIM_PT_tab_project_setup,
+    ui.BIM_PT_tab_geometry,
+    ui.BIM_PT_tab_stakeholders,
+    ui.BIM_PT_tab_grouping_and_filtering,
    # Object information
    ui.BIM_PT_tab_object_metadata,
    ui.BIM_PT_tab_misc,
    # Geometry and materials
+    ui.BIM_PT_tab_placement,
    ui.BIM_PT_tab_representations,
    ui.BIM_PT_tab_geometric_relationships,
    ui.BIM_PT_tab_parametric_geometry,
+    ui.BIM_PT_tab_profiles,
    ui.BIM_PT_tab_materials,
    ui.BIM_PT_tab_styles,
    # Drawings and documents
+    ui.BIM_PT_tab_sheets,
+    ui.BIM_PT_tab_drawings,
+    ui.BIM_PT_tab_schedules,
+    ui.BIM_PT_tab_references,
    # Services and systems
    ui.BIM_PT_tab_services,
    ui.BIM_PT_tab_services_object,
+    ui.BIM_PT_tab_zones,
    # Structural analysis
    ui.BIM_PT_tab_structural,
+    # Construction scheduling
+    ui.BIM_PT_tab_status,
+    ui.BIM_PT_tab_resources,
+    ui.BIM_PT_tab_cost,
+    ui.BIM_PT_tab_sequence,
    # Facility management
    ui.BIM_PT_tab_handover,
    ui.BIM_PT_tab_operations,
    # Quality and coordination
    ui.BIM_PT_tab_quality_control,
+    ui.BIM_PT_tab_clash_detection,
    ui.BIM_PT_tab_collaboration,
    ui.BIM_PT_tab_sandbox,
    # TODO: move this somewhere else and clean it up
@@ -44,17 +44,29 @@
        <circle r="5" fill="white" stroke="black" style="stroke-width: 0.25;" />
        <line x1="-5" y1="0" x2="5" y2="0" style="stroke: black; stroke-width: 0.25;" />
    </g>
-    <g id="SurveyArea">
+    <g id="dot">
        <circle r="1" fill="black" stroke="black" style="stroke-width: 0.25;" />
    </g>
-    <g id="SurveyArea-CONTROLPOINT">
-        <path style="fill: white; stroke: black; stroke-width: 0.25;" d="M 2.286165,1.4798666 H -1.0000316e-7 -2.2861651 L -1.1430826,-0.5000101 -1.0000316e-7,-2.479888 1.1430827,-0.5000101 Z" />
+    <g id="setout-tag">
+        <circle fill="white" stroke="black" r="2.5" style="stroke-width: 0.5"/>
+        <path d="M 0 0 L -2.5 0 A 2.5 2.5 0 0 1 0 -2.5 Z" fill="black"/>
+        <path d="M 0 0 L 2.5 0 A 2.5 2.5 0 0 1 0 2.5 Z" fill="black"/>
+        <text x="3" y="-8" class="regular" text-anchor="start" dominant-baseline="auto" data-type="text-template"></text>
+        <text x="3" y="-4" class="regular" text-anchor="start" dominant-baseline="auto" data-type="text-template"></text>
+    </g>
+    <g id="setout-point">
+        <circle fill="white" stroke="black" r="2.5" style="stroke-width: 0.5"/>
+        <path d="M 0 0 L -2.5 0 A 2.5 2.5 0 0 1 0 -2.5 Z" fill="black"/>
+        <path d="M 0 0 L 2.5 0 A 2.5 2.5 0 0 1 0 2.5 Z" fill="black"/>
+    </g>
+    <g id="control-point">
+        <path style="fill: white; stroke: black; stroke-width: 0.5;" d="M 2.286165,1.4798666 H -1.0000316e-7 -2.2861651 L -1.1430826,-0.5000101 -1.0000316e-7,-2.479888 1.1430827,-0.5000101 Z" />
        <circle r="0.5" fill="black" stroke="black" style="stroke-width: 0.25;" />
    </g>
-    <g id="SurveyArea-TRAVERSEPOINT">
+    <g id="traverse-point">
        <path style="fill: white; stroke: black; stroke-width: 0.5;" d="M -2,-2 2,2 M -2,2 2,-2" />
    </g>
-    <g id="SurveyArea-SPOTELEVATION">
+    <g id="spot-elevation">
        <path style="fill: white; stroke: black; stroke-width: 0.5;" d="M 0,-2 0,2 M -2,0 2,0" />
    </g>
 </svg>
@@ -51,5 +51,5 @@ var json_data = `{{{json_data}}}`;
 <script>
 var data = `{{{data}}}`;
 setupPage(data);
-create_gantt_chart(json_data)
-</script>
+create_gantt_chart(atob(json_data))
+</script>
@@ -1,17 +1,17 @@
 ISO-10303-21;
 HEADER;
 FILE_DESCRIPTION(('ViewDefinition[DesignTransferView]'),'2;1');
-FILE_NAME('/dev/null','2023-07-30T21:07:33+10:00',(),(),'IfcOpenShell v0.7.0-8f41ae0c1','IfcOpenShell v0.7.0-8f41ae0c1','Nobody');
+FILE_NAME('/dev/null','2023-09-07T13:40:06+10:00',(),(),'IfcOpenShell v0.7.0-fbd8ea1ed','IfcOpenShell v0.7.0-fbd8ea1ed','Nobody');
 FILE_SCHEMA(('IFC4'));
 ENDSEC;
 DATA;
-#1=IFCPROJECT('0TszJmTqLCyxcP10DtK_MP',$,'BlenderBIM Demo',$,$,$,$,(#12,#16),#7);
-#2=IFCPROJECTLIBRARY('0Y_CJXSsbCgBlSGFw0mbLa',$,'BlenderBIM Demo Library',$,$,$,$,$,$);
-#3=IFCRELDECLARES('3IxQaOPH5Fx90CGmGm1gtQ',$,$,$,#1,(#2));
+#1=IFCPROJECT('1arVsMni92iPUaaryGTUz2',$,'BlenderBIM Demo',$,$,$,$,(#12,#16),#7);
+#2=IFCPROJECTLIBRARY('1FfDG5b21DuBDOO4eUE9rF',$,'BlenderBIM Demo Library',$,$,$,$,$,$);
+#3=IFCRELDECLARES('3tfDIC3Tf9wP8EUOoFeycK',$,$,$,#1,(#2));
 #4=IFCSIUNIT(*,.LENGTHUNIT.,$,.METRE.);
 #5=IFCSIUNIT(*,.AREAUNIT.,$,.SQUARE_METRE.);
 #6=IFCSIUNIT(*,.VOLUMEUNIT.,$,.CUBIC_METRE.);
-#7=IFCUNITASSIGNMENT((#6,#4,#5));
+#7=IFCUNITASSIGNMENT((#5,#6,#4));
 #8=IFCCARTESIANPOINT((0.,0.,0.));
 #9=IFCDIRECTION((0.,0.,1.));
 #10=IFCDIRECTION((1.,0.,0.));
@@ -25,82 +25,82 @@ DATA;
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 #20=IFCMATERIAL('Unknown',$,$);
-#21=IFCWALLTYPE('3U0gAUglf9WBlcfpB15EK0',$,'WAL50',$,$,$,$,$,$,.NOTDEFINED.);
+#21=IFCWALLTYPE('2o8NqQQbHA5BeErrgwfr7d',$,'WAL50',$,$,$,$,$,$,.NOTDEFINED.);
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-#23=IFCRELASSOCIATESMATERIAL('3J36H22Gz1ovVzdiKgApaM',$,$,$,(#21),#22);
+#23=IFCRELASSOCIATESMATERIAL('1Q$5DZKr98n82Eitz2dWey',$,$,$,(#21),#22);
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-#26=IFCWALLTYPE('1wGfdUdC10TuASJo4jnO99',$,'WAL100',$,$,$,$,$,$,.NOTDEFINED.);
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+#26=IFCWALLTYPE('3KlIOv_P9A79tkt8D_jq_m',$,'WAL100',$,$,$,$,$,$,.NOTDEFINED.);
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 #35=IFCMATERIALLAYERSET((#37),$,$);
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 #53=IFCPROPERTYSINGLEVALUE('LayerSetDirection',$,IFCLABEL('AXIS3'),$);
-#54=IFCRAMPTYPE('1BTHjVDP19tgb3MDCSkWCJ',$,'RAM200',$,$,$,$,$,$,.NOTDEFINED.);
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 #60=IFCMATERIALPROFILESET($,$,(#62),$);
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+#61=IFCRELASSOCIATESMATERIAL('3hi821Ffj8YR9yFjp226LU',$,$,$,(#59),#60);
 #62=IFCMATERIALPROFILE($,$,#20,#58,$,$);
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+#63=IFCSLABTYPE('2janmz3nH4P9IHaOVvGY_B',$,'FLR150',$,$,$,$,$,$,.NOTDEFINED.);
 #64=IFCMATERIALLAYERSET((#66),$,$);
-#65=IFCRELASSOCIATESMATERIAL('1agyf45$X1NhR127pUL0Iw',$,$,$,(#63),#64);
+#65=IFCRELASSOCIATESMATERIAL('0og5Zg4ib67g6XWgOgqBWy',$,$,$,(#63),#64);
 #66=IFCMATERIALLAYER(#20,0.2,$,$,$,$,$);
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+#67=IFCSLABTYPE('26UKpEaTb9fh4qrqi3Ymzj',$,'FLR250',$,$,$,$,$,$,.NOTDEFINED.);
 #68=IFCMATERIALLAYERSET((#70),$,$);
-#69=IFCRELASSOCIATESMATERIAL('0EKQPSL656secN86SgeutH',$,$,$,(#67),#68);
+#69=IFCRELASSOCIATESMATERIAL('1BeBXPqen9TQEE42SxzhjF',$,$,$,(#67),#68);
 #70=IFCMATERIALLAYER(#20,0.3,$,$,$,$,$);
 #71=IFCRECTANGLEPROFILEDEF(.AREA.,'500x600',$,0.5,0.6);
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+#72=IFCCOLUMNTYPE('1KnWzBBoLCNfJ3_J79LT7d',$,'C1',$,$,$,$,$,$,.NOTDEFINED.);
 #73=IFCMATERIALPROFILESET($,$,(#75),$);
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+#74=IFCRELASSOCIATESMATERIAL('1W8OWQjEL05gH5hEpve6Lh',$,$,$,(#72),#73);
 #75=IFCMATERIALPROFILE($,$,#20,#71,$,$);
 #76=IFCCIRCLEHOLLOWPROFILEDEF(.AREA.,'500.0x5.0 CHS',$,0.25,0.005);
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+#77=IFCCOLUMNTYPE('33jPFERfL9bfTeWfTL5kZ7',$,'C2',$,$,$,$,$,$,.NOTDEFINED.);
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+#79=IFCRELASSOCIATESMATERIAL('3czOrQw2v9BfS0PeQCrzWq',$,$,$,(#77),#78);
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+#82=IFCCOLUMNTYPE('21YcNdKNj2$95U55yNx1Nw',$,'C3',$,$,$,$,$,$,.NOTDEFINED.);
 #83=IFCMATERIALPROFILESET($,$,(#85),$);
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+#84=IFCRELASSOCIATESMATERIAL('3n6Cru3xr6jvDptU9u7QEF',$,$,$,(#82),#83);
 #85=IFCMATERIALPROFILE($,$,#20,#81,$,$);
 #86=IFCISHAPEPROFILEDEF(.AREA.,'DEMO-I',$,0.1,0.2,0.005,0.01,0.005,$,$);
-#87=IFCBEAMTYPE('2yg2Irs7L26gFsD_AvvFUu',$,'B1',$,$,$,$,$,$,.NOTDEFINED.);
+#87=IFCBEAMTYPE('2CsGpD$6nDCxWv9jXTtvq9',$,'B1',$,$,$,$,$,$,.NOTDEFINED.);
 #88=IFCMATERIALPROFILESET($,$,(#90),$);
-#89=IFCRELASSOCIATESMATERIAL('1PU_gbkifF9hYpi9DvXTAU',$,$,$,(#87),#88);
+#89=IFCRELASSOCIATESMATERIAL('2LJExc74j9rgBSBx51HDPK',$,$,$,(#87),#88);
 #90=IFCMATERIALPROFILE($,$,#20,#86,$,$);
 #91=IFCCSHAPEPROFILEDEF(.AREA.,'DEMO-C',$,0.2,0.1,0.0015,0.03,0.005);
-#92=IFCBEAMTYPE('2Nf2L5qpz8K8KhUNFBg_fT',$,'B2',$,$,$,$,$,$,.NOTDEFINED.);
+#92=IFCBEAMTYPE('32pHN2b0P0awGw$U8PpneO',$,'B2',$,$,$,$,$,$,.NOTDEFINED.);
 #93=IFCMATERIALPROFILESET($,$,(#95),$);
-#94=IFCRELASSOCIATESMATERIAL('1SgarGNCzEQQpfs29NMq0y',$,$,$,(#92),#93);
+#94=IFCRELASSOCIATESMATERIAL('2wg8R1Drb2xhQ2Y_pRSh3c',$,$,$,(#92),#93);
 #95=IFCMATERIALPROFILE($,$,#20,#91,$,$);
-#96=IFCWINDOWTYPE('2zRUFP8Ef81xDOR2iJx1zK',$,'WT01',$,$,$,(#135,#152),$,$,.NOTDEFINED.,.NOTDEFINED.,$,$);
+#96=IFCWINDOWTYPE('1Gg9HfZEr69u8SdWfDs2J3',$,'WT01',$,$,$,(#135,#152),$,$,.NOTDEFINED.,.NOTDEFINED.,$,$);
 #97=IFCINDEXEDPOLYGONALFACE((13,17,18,14));
 #98=IFCINDEXEDPOLYGONALFACE((5,6,3,4));
 #99=IFCINDEXEDPOLYGONALFACE((7,8,2,1));
@@ -157,7 +157,7 @@ DATA;
 #150=IFCDIRECTION((0.,0.,1.));
 #151=IFCAXIS2PLACEMENT3D(#148,#150,#149);
 #152=IFCREPRESENTATIONMAP(#151,#147);
-#153=IFCDOORTYPE('0oekOIA$z8lxWiQs9_tFWU',$,'DT01',$,$,$,(#196,#209),$,$,.NOTDEFINED.,.NOTDEFINED.,$,$);
+#153=IFCDOORTYPE('0NBUmPKyT9WecsIeYJrEqg',$,'DT01',$,$,$,(#196,#209),$,$,.NOTDEFINED.,.NOTDEFINED.,$,$);
 #154=IFCINDEXEDPOLYGONALFACE((17,16,15,14));
 #155=IFCINDEXEDPOLYGONALFACE((2,3,29,28));
 #156=IFCINDEXEDPOLYGONALFACE((27,28,29,30,32,31));
@@ -214,7 +214,7 @@ DATA;
 #207=IFCDIRECTION((0.,0.,1.));
 #208=IFCAXIS2PLACEMENT3D(#205,#207,#206);
 #209=IFCREPRESENTATIONMAP(#208,#204);
-#210=IFCFURNITURETYPE('0I2mc$m3T60hLXZYg9Y1wu',$,'BUN01',$,$,$,(#931,#952),$,$,.NOTDEFINED.,.NOTDEFINED.);
+#210=IFCFURNITURETYPE('3Kyc6IyarAUw3_8fkNtXIg',$,'BUN01',$,$,$,(#931,#952),$,$,.NOTDEFINED.,.NOTDEFINED.);
 #211=IFCINDEXEDPOLYGONALFACE((187,278,44));
 #212=IFCINDEXEDPOLYGONALFACE((21,52,60));
 #213=IFCINDEXEDPOLYGONALFACE((91,100,31));
@@ -957,131 +957,161 @@ DATA;
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+#1039=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('space-tag'),$);
+#1040=IFCCARTESIANPOINT((0.,0.,0.));
+#1041=IFCDIRECTION((0.,0.,1.));
+#1042=IFCDIRECTION((1.,0.,0.));
+#1043=IFCAXIS2PLACEMENT3D(#1040,#1041,#1042);
+#1044=IFCPLANAREXTENT(1000.,1000.);
+#1045=IFCTEXTLITERALWITHEXTENT('{{Name}}',#1043,.RIGHT.,#1044,'center');
+#1046=IFCCARTESIANPOINT((0.,0.,0.));
+#1047=IFCDIRECTION((0.,0.,1.));
+#1048=IFCDIRECTION((1.,0.,0.));
+#1049=IFCAXIS2PLACEMENT3D(#1046,#1047,#1048);
+#1050=IFCPLANAREXTENT(1000.,1000.);
+#1051=IFCTEXTLITERALWITHEXTENT('{{Description}}',#1049,.RIGHT.,#1050,'center');
 #1052=IFCCARTESIANPOINT((0.,0.,0.));
 #1053=IFCDIRECTION((0.,0.,1.));
 #1054=IFCDIRECTION((1.,0.,0.));
 #1055=IFCAXIS2PLACEMENT3D(#1052,#1053,#1054);
 #1056=IFCPLANAREXTENT(1000.,1000.);
-#1057=IFCTEXTLITERALWITHEXTENT('{{type.Name}}',#1055,.RIGHT.,#1056,'center');
-#1058=IFCSHAPEREPRESENTATION(#19,'Annotation','Annotation2D',(#1057));
+#1057=IFCTEXTLITERALWITHEXTENT('``round({{Qto_SpaceBaseQuantities.NetFloorArea}}, 0.01)``',#1055,.RIGHT.,#1056,'center');
+#1058=IFCSHAPEREPRESENTATION(#19,'Annotation','Annotation2D',(#1045,#1051,#1057));
 #1059=IFCCARTESIANPOINT((0.,0.,0.));
 #1060=IFCDIRECTION((1.,0.,0.));
 #1061=IFCDIRECTION((0.,0.,1.));
 #1062=IFCAXIS2PLACEMENT3D(#1059,#1061,#1060);
 #1063=IFCREPRESENTATIONMAP(#1062,#1058);
-#1064=IFCTYPEPRODUCT('2SnSxJPiD9sh$NDx92OCSS',$,'NAME-TAG',$,'IfcAnnotation/TEXT',(#1065),(#1078),$);
-#1065=IFCPROPERTYSET('3Lu86QVuv5nfjkuPLvdQSH',$,'EPset_Annotation',$,(#1066));
-#1066=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('capsule-tag'),$);
+#1064=IFCTYPEPRODUCT('1evqvQLLL1zxdsIWqEn0lK',$,'MATERIAL-TAG',$,'IfcAnnotation/TEXT',(#1065),(#1078),$);
+#1065=IFCPROPERTYSET('2KPJlGyer0UBmphfR7952k',$,'EPset_Annotation',$,(#1066));
+#1066=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('rectangle-tag'),$);
 #1067=IFCCARTESIANPOINT((0.,0.,0.));
 #1068=IFCDIRECTION((0.,0.,1.));
 #1069=IFCDIRECTION((1.,0.,0.));
 #1070=IFCAXIS2PLACEMENT3D(#1067,#1068,#1069);
 #1071=IFCPLANAREXTENT(1000.,1000.);
-#1072=IFCTEXTLITERALWITHEXTENT('{{Name}}',#1070,.RIGHT.,#1071,'center');
+#1072=IFCTEXTLITERALWITHEXTENT('{{material.Name}}',#1070,.RIGHT.,#1071,'center');
 #1073=IFCSHAPEREPRESENTATION(#19,'Annotation','Annotation2D',(#1072));
 #1074=IFCCARTESIANPOINT((0.,0.,0.));
 #1075=IFCDIRECTION((1.,0.,0.));
 #1076=IFCDIRECTION((0.,0.,1.));
 #1077=IFCAXIS2PLACEMENT3D(#1074,#1076,#1075);
 #1078=IFCREPRESENTATIONMAP(#1077,#1073);
+#1079=IFCTYPEPRODUCT('3Nem6d4xX87O3deyWDi3AW',$,'TYPE-TAG',$,'IfcAnnotation/TEXT',(#1080),(#1093),$);
+#1080=IFCPROPERTYSET('15bspgnA9CEuFox6xFjoTL',$,'EPset_Annotation',$,(#1081));
+#1081=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('capsule-tag'),$);
+#1082=IFCCARTESIANPOINT((0.,0.,0.));
+#1083=IFCDIRECTION((0.,0.,1.));
+#1084=IFCDIRECTION((1.,0.,0.));
+#1085=IFCAXIS2PLACEMENT3D(#1082,#1083,#1084);
+#1086=IFCPLANAREXTENT(1000.,1000.);
+#1087=IFCTEXTLITERALWITHEXTENT('{{type.Name}}',#1085,.RIGHT.,#1086,'center');
+#1088=IFCSHAPEREPRESENTATION(#19,'Annotation','Annotation2D',(#1087));
+#1089=IFCCARTESIANPOINT((0.,0.,0.));
+#1090=IFCDIRECTION((1.,0.,0.));
+#1091=IFCDIRECTION((0.,0.,1.));
+#1092=IFCAXIS2PLACEMENT3D(#1089,#1091,#1090);
+#1093=IFCREPRESENTATIONMAP(#1092,#1088);
+#1094=IFCTYPEPRODUCT('0klFX9AjnEnPBkdIURv8XD',$,'NAME-TAG',$,'IfcAnnotation/TEXT',(#1095),(#1108),$);
+#1095=IFCPROPERTYSET('1d53tifbv2rwcoFFJosiHf',$,'EPset_Annotation',$,(#1096));
+#1096=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('capsule-tag'),$);
+#1097=IFCCARTESIANPOINT((0.,0.,0.));
+#1098=IFCDIRECTION((0.,0.,1.));
+#1099=IFCDIRECTION((1.,0.,0.));
+#1100=IFCAXIS2PLACEMENT3D(#1097,#1098,#1099);
+#1101=IFCPLANAREXTENT(1000.,1000.);
+#1102=IFCTEXTLITERALWITHEXTENT('{{Name}}',#1100,.RIGHT.,#1101,'center');
+#1103=IFCSHAPEREPRESENTATION(#19,'Annotation','Annotation2D',(#1102));
+#1104=IFCCARTESIANPOINT((0.,0.,0.));
+#1105=IFCDIRECTION((1.,0.,0.));
+#1106=IFCDIRECTION((0.,0.,1.));
+#1107=IFCAXIS2PLACEMENT3D(#1104,#1106,#1105);
+#1108=IFCREPRESENTATIONMAP(#1107,#1103);
 ENDSEC;
 END-ISO-10303-21;
@@ -5,27 +5,27 @@ FILE_NAME('EPset_Drawing.ifc','2020-01-01T00:00:00',(),(),'EPset_Drawing','EPset
 FILE_SCHEMA(('IFC4'));
 ENDSEC;
 DATA;
-#1=IFCPROPERTYSETTEMPLATE('2JhNIvqZrFnAgxfhK0XVQX',$,'EPset_Drawing','',.PSET_OCCURRENCEDRIVEN.,'IfcAnnotation',(#2,#3,#4,#5,#6,#7,#8,#9,#10,#11,#12,#13,#14,#15,#16,#17,#18,#19,#20,#21));
+#1=IFCPROPERTYSETTEMPLATE('2JhNIvqZrFnAgxfhK0XVQX',$,'EPset_Drawing','',.PSET_OCCURRENCEDRIVEN.,'IfcAnnotation',(#2,#3,#4,#5,#6,#7,#8,#9,#10,#11,#12,#13,#14,#15,#16,#17,#18,#19,#20,#21,#22));
 #2=IFCSIMPLEPROPERTYTEMPLATE('23JavTMk98ZxXhrUEnjAcf',$,'TargetView','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
 #3=IFCSIMPLEPROPERTYTEMPLATE('1yVWUt5H9DAOuu0OaMMLpe',$,'Scale','The scale of this drawing represented as a numerator and denominator, such as 1/100',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
 #4=IFCSIMPLEPROPERTYTEMPLATE('3gsuPBtU93b8f0gg1pjkq6',$,'HumanScale','The scale of this drawing in human readable format, such as 1:100',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
-#4=IFCSIMPLEPROPERTYTEMPLATE('2T$a4OFsv2LeD5JeBKEV4f',$,'IsNTS','Whether or not the scale is intended to be significant',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
-#5=IFCSIMPLEPROPERTYTEMPLATE('0AK5C2UpL4$eaac2LszAx$',$,'HasUnderlay','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
-#6=IFCSIMPLEPROPERTYTEMPLATE('2j2ZEZR8X5tONm7kli5hM6',$,'HasLinework','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
-#7=IFCSIMPLEPROPERTYTEMPLATE('1ttChRysH9UuEX2FeMj5Hu',$,'HasAnnotation','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
-#8=IFCSIMPLEPROPERTYTEMPLATE('2NPPxuABv1huDTVh32TFgw',$,'GlobalReferencing','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
-#9=IFCSIMPLEPROPERTYTEMPLATE('10hT_1zrzEbRRKMXYAWvtD',$,'Metadata','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#10=IFCSIMPLEPROPERTYTEMPLATE('3Z0BXPSG5CWgtI33ioV7aj',$,'Include','Selector expression to include ifc elements in the drawing',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#11=IFCSIMPLEPROPERTYTEMPLATE('1RVts_g3PAw98PJA2yL3bO',$,'Exclude','Selector expression to exclude ifc elements in the drawing',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#12=IFCSIMPLEPROPERTYTEMPLATE('0c1$8NpYDEaBiJrj16jHIo',$,'Stylesheet','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#13=IFCSIMPLEPROPERTYTEMPLATE('3mRF52q81FQB$h4oTh7M45',$,'Markers','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#14=IFCSIMPLEPROPERTYTEMPLATE('1rhr_0N3LDtuORcEJP0KXM',$,'Symbols','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#15=IFCSIMPLEPROPERTYTEMPLATE('2sHDBuW7P4TROy$hL2w7ct',$,'Patterns','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#16=IFCSIMPLEPROPERTYTEMPLATE('1$xfo9EVb26QLqmPll2_RK',$,'MetricPrecision','',.P_SINGLEVALUE.,'IfcReal',$,$,$,$,$,.READWRITE.);
-#17=IFCSIMPLEPROPERTYTEMPLATE('38uAtrp9nD_901NO42zd$7',$,'ImperialPrecision','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
-#18=IFCSIMPLEPROPERTYTEMPLATE('1MX0uffTL6TOvtvEJpxFmk',$,'DecimalPlaces','',.P_SINGLEVALUE.,'IfcInteger',$,$,$,$,$,.READWRITE.);
-#19=IFCSIMPLEPROPERTYTEMPLATE('0joEq0Rd10cxweEh0NeHT6',$,'JoinCriteria','Comma separated selection keys which determine what cut objects are to be joined.',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#20=IFCSIMPLEPROPERTYTEMPLATE('0nYMT3OSj5gArVniCWZRtv',$,'ShadingStyles','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#21=IFCSIMPLEPROPERTYTEMPLATE('3VWG22eZXBdQwdKlzMeVQH',$,'CurrentShadingStyle','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
+#5=IFCSIMPLEPROPERTYTEMPLATE('2T$a4OFsv2LeD5JeBKEV4f',$,'IsNTS','Whether or not the scale is intended to be significant',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
+#6=IFCSIMPLEPROPERTYTEMPLATE('0AK5C2UpL4$eaac2LszAx$',$,'HasUnderlay','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
+#7=IFCSIMPLEPROPERTYTEMPLATE('2j2ZEZR8X5tONm7kli5hM6',$,'HasLinework','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
+#8=IFCSIMPLEPROPERTYTEMPLATE('1ttChRysH9UuEX2FeMj5Hu',$,'HasAnnotation','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
+#9=IFCSIMPLEPROPERTYTEMPLATE('2NPPxuABv1huDTVh32TFgw',$,'GlobalReferencing','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
+#10=IFCSIMPLEPROPERTYTEMPLATE('10hT_1zrzEbRRKMXYAWvtD',$,'Metadata','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#11=IFCSIMPLEPROPERTYTEMPLATE('3Z0BXPSG5CWgtI33ioV7aj',$,'Include','Selector expression to include ifc elements in the drawing',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#12=IFCSIMPLEPROPERTYTEMPLATE('1RVts_g3PAw98PJA2yL3bO',$,'Exclude','Selector expression to exclude ifc elements in the drawing',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#13=IFCSIMPLEPROPERTYTEMPLATE('0c1$8NpYDEaBiJrj16jHIo',$,'Stylesheet','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#14=IFCSIMPLEPROPERTYTEMPLATE('3mRF52q81FQB$h4oTh7M45',$,'Markers','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#15=IFCSIMPLEPROPERTYTEMPLATE('1rhr_0N3LDtuORcEJP0KXM',$,'Symbols','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#16=IFCSIMPLEPROPERTYTEMPLATE('2sHDBuW7P4TROy$hL2w7ct',$,'Patterns','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#17=IFCSIMPLEPROPERTYTEMPLATE('1$xfo9EVb26QLqmPll2_RK',$,'MetricPrecision','',.P_SINGLEVALUE.,'IfcReal',$,$,$,$,$,.READWRITE.);
+#18=IFCSIMPLEPROPERTYTEMPLATE('38uAtrp9nD_901NO42zd$7',$,'ImperialPrecision','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
+#19=IFCSIMPLEPROPERTYTEMPLATE('1MX0uffTL6TOvtvEJpxFmk',$,'DecimalPlaces','',.P_SINGLEVALUE.,'IfcInteger',$,$,$,$,$,.READWRITE.);
+#20=IFCSIMPLEPROPERTYTEMPLATE('0joEq0Rd10cxweEh0NeHT6',$,'JoinCriteria','Comma separated selection keys which determine what cut objects are to be joined.',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#21=IFCSIMPLEPROPERTYTEMPLATE('0nYMT3OSj5gArVniCWZRtv',$,'ShadingStyles','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#22=IFCSIMPLEPROPERTYTEMPLATE('3VWG22eZXBdQwdKlzMeVQH',$,'CurrentShadingStyle','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
 ENDSEC;
 END-ISO-10303-21;
@@ -0,0 +1,13 @@
+ISO-10303-21;
+HEADER;
+FILE_DESCRIPTION((),'2;1');
+FILE_NAME('EPset_Status.ifc','2020-01-01T00:00:00',(),(),'EPset_Status','EPset_Status',$);
+FILE_SCHEMA(('IFC4'));
+ENDSEC;
+DATA;
+#1=IFCPROPERTYSETTEMPLATE('3JoyTt$cz4fhYuQvJeTMhs',$,'EPset_Status','',.PSET_TYPEDRIVENOVERRIDE.,'IfcProduct',(#2,#4));
+#2= IFCSIMPLEPROPERTYTEMPLATE('2HBOdOfz5E3hZ7IBLCq$$D',$,'Status','Status of the element, predominately used in renovation or retrofitting projects. The status can be assigned to as "New" - element designed as new addition, "Existing" - element exists and remains, "Demolish" - element existed but is to be demolished,  "Temporary" - element will exists only temporary (like a temporary support structure).',.P_ENUMERATEDVALUE.,'IfcLabel',$,#3,$,$,$,.READWRITE.);
+#3= IFCPROPERTYENUMERATION('EPEnum_ElementStatus',(IFCLABEL('NEW'),IFCLABEL('EXISTING'),IFCLABEL('DEMOLISH'),IFCLABEL('TEMPORARY'),IFCLABEL('OTHER'),IFCLABEL('NOTKNOWN'),IFCLABEL('UNSET')),$);
+#4=IFCSIMPLEPROPERTYTEMPLATE('3ttXxqmlz62BlxjzEPpqvH',$,'UserDefinedStatus','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
+ENDSEC;
+END-ISO-10303-21;
@@ -0,0 +1,23 @@
+ISO-10303-21;
+HEADER;
+FILE_DESCRIPTION(('ViewDefinition [CoordinationView]'),'2;1');
+FILE_NAME('','2023-09-28T23:00:50',(),(),'IfcOpenShell v0.7.0-fbd8ea1ed','IfcOpenShell v0.7.0-fbd8ea1ed','');
+FILE_SCHEMA(('IFC4'));
+ENDSEC;
+DATA;
+#1=IFCPROPERTYSETTEMPLATE('1TLQmgUKf0I8Zi07bm9Jqn',$,'ePSet_ProjectedCRS','',.PSET_OCCURRENCEDRIVEN.,'IfcProject',(#2,#3,#4,#5,#6,#7));
+#2=IFCSIMPLEPROPERTYTEMPLATE('2cH53PtVT3v88uf_uGFblG',$,'Name','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
+#3=IFCSIMPLEPROPERTYTEMPLATE('3JsReA6vXDqR7aNC$haRYW',$,'Description','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#4=IFCSIMPLEPROPERTYTEMPLATE('0u0uEsT5HFtuX5GvozO9ba',$,'GeodeticDatum','',.P_SINGLEVALUE.,'IfcIdentifier',$,$,$,$,$,.READWRITE.);
+#5=IFCSIMPLEPROPERTYTEMPLATE('1JgEX9Fsf0$ggxYltdkqiY',$,'VerticalDatum','',.P_SINGLEVALUE.,'IfcIdentifier',$,$,$,$,$,.READWRITE.);
+#6=IFCSIMPLEPROPERTYTEMPLATE('3ahTZjYrD0MAOo5IH6QuGH',$,'MapProjection','',.P_SINGLEVALUE.,'IfcIdentifier',$,$,$,$,$,.READWRITE.);
+#7=IFCSIMPLEPROPERTYTEMPLATE('3hqJR2ghD0GAti7q4sXKj7',$,'MapZone','',.P_SINGLEVALUE.,'IfcIdentifier',$,$,$,$,$,.READWRITE.);
+#8=IFCPROPERTYSETTEMPLATE('1jGHTycOj0vA8xHfRl4TNs',$,'ePSet_MapConversion','',.PSET_OCCURRENCEDRIVEN.,'IfcProject',(#9,#10,#11,#12,#13,#15));
+#9=IFCSIMPLEPROPERTYTEMPLATE('0nxsULXo17JRrAvNteYtNR',$,'Eastings','',.P_SINGLEVALUE.,'IfcLengthMeasure',$,$,$,$,$,.READWRITE.);
+#10=IFCSIMPLEPROPERTYTEMPLATE('26RfaGJs5CqemN0Xin12XL',$,'Northings','',.P_SINGLEVALUE.,'IfcLengthMeasure',$,$,$,$,$,.READWRITE.);
+#11=IFCSIMPLEPROPERTYTEMPLATE('0ziCn3nZv3m850VEUwWH42',$,'OrthogonalHeight','',.P_SINGLEVALUE.,'IfcLengthMeasure',$,$,$,$,$,.READWRITE.);
+#12=IFCSIMPLEPROPERTYTEMPLATE('3d4BOt4In8WR119ms1SaAe',$,'XAxisAbscissa','',.P_SINGLEVALUE.,'IfcReal',$,$,$,$,$,.READWRITE.);
+#13=IFCSIMPLEPROPERTYTEMPLATE('1Q4Voqj2j84RQRI8l67m28',$,'XAxisOrdinate','',.P_SINGLEVALUE.,'IfcReal',$,$,$,$,$,.READWRITE.);
+#15=IFCSIMPLEPROPERTYTEMPLATE('0O1Hc0$XnDNOG_jPBmbW5r',$,'Scale','',.P_SINGLEVALUE.,'IfcReal',$,$,$,$,$,.READWRITE.);
+ENDSEC;
+END-ISO-10303-21;
@@ -82,7 +82,7 @@ class IfcExporter:
        )
        self.file.wrapped_data.header.file_name.preprocessor_version = "IfcOpenShell {}".format(ifcopenshell.version)
        self.file.wrapped_data.header.file_name.originating_system = "{} {}".format(
-            self.get_application_name(), self.get_application_version()
+            self.get_application_name(), tool.Blender.get_blenderbim_version()
        )

    def sync_all_objects(self):
@@ -93,6 +93,8 @@ class IfcExporter:
            try:
                if isinstance(obj, bpy.types.Material):
                    continue
+                if obj.library:
+                    continue
                tool.Collector.sync(obj)
                result = self.sync_object_placement(obj)
                if result:
@@ -162,7 +164,7 @@ class IfcExporter:
        return "BlenderBIM"

    def get_application_version(self):
-        return ".".join(
+        version = ".".join(
            [
                str(x)
                for x in [
@@ -172,6 +174,9 @@ class IfcExporter:
                ][0]
            ]
        )
+        if blenderbim.bim.last_commit_hash != "8888888":
+            version += f"-{blenderbim.bim.last_commit_hash[:7]}"
+        return version


 class IfcExportSettings:
@@ -27,6 +27,7 @@ from bpy.app.handlers import persistent
 from blenderbim.bim.ifc import IfcStore
 from blenderbim.bim.module.owner.prop import get_user_person, get_user_organisation
 from blenderbim.bim.module.model.data import AuthoringData
+from blenderbim.bim.module.model.workspace import LIST_OF_TOOLS, TOOLS_TO_CLASSES_MAP
 from mathutils import Vector
 from math import cos, degrees

@@ -35,24 +36,6 @@ cwd = os.path.dirname(os.path.realpath(__file__))
 global_subscription_owner = object()


-def mode_callback(obj, data):
-    objects = bpy.context.selected_objects
-    if bpy.context.active_object:
-        objects += [bpy.context.active_object]
-    for obj in objects:
-        if (
-            obj.mode != "EDIT"
-            or not obj.data
-            or not isinstance(obj.data, (bpy.types.Mesh, bpy.types.Curve, bpy.types.TextCurve))
-            or not obj.BIMObjectProperties.ifc_definition_id
-        ):
-            continue
-        if obj.data.BIMMeshProperties.ifc_definition_id:
-            tool.Ifc.edit(obj)
-        elif IfcStore.get_file().by_id(obj.BIMObjectProperties.ifc_definition_id).is_a("IfcGridAxis"):
-            tool.Ifc.edit(obj)
-
-
 def name_callback(obj, data):
    try:
        obj.name
@@ -73,17 +56,27 @@ def name_callback(obj, data):
        refresh_ui_data()
        return

-    if not obj.BIMObjectProperties.ifc_definition_id or "/" not in obj.name:
+    if not obj.BIMObjectProperties.ifc_definition_id:
        return
+
    element = IfcStore.get_file().by_id(obj.BIMObjectProperties.ifc_definition_id)
+    if "/" in obj.name:
+        object_name = obj.name
+        element_name = obj.name.split("/", 1)[1]
+    else:
+        element_name = obj.name
+        object_name = element.is_a() + f"/{element_name}"
+        obj.name = object_name  # NOTE: doesn't trigger infinite recursion
+
    if element.is_a("IfcGridAxis"):
-        element.AxisTag = obj.name.split("/")[1]
+        element.AxisTag = object_name.split("/")[1]
        refresh_ui_data()
+
    if not element.is_a("IfcRoot"):
        return
+    element.Name = element_name
    if obj.BIMObjectProperties.collection:
-        obj.BIMObjectProperties.collection.name = obj.name
-    element.Name = "/".join(obj.name.split("/")[1:])
+        obj.BIMObjectProperties.collection.name = object_name
    refresh_ui_data()


@@ -106,7 +99,7 @@ def update_bim_tool_props():
        return
    mode = bpy.context.mode
    current_tool = bpy.context.workspace.tools.from_space_view3d_mode(mode)
-    if not current_tool or current_tool.idname != "bim.bim_tool":
+    if not current_tool or current_tool.idname not in LIST_OF_TOOLS:
        return
    element = tool.Ifc.get_entity(obj)
    if not element:
@@ -114,6 +107,16 @@ def update_bim_tool_props():
    representation = ifcopenshell.util.representation.get_representation(element, "Model", "Body", "MODEL_VIEW")
    if not representation:
        return
+
+    props = bpy.context.scene.BIMModelProperties
+    if element.is_a("IfcElementType") or element.is_a("IfcElement"):
+        element_type = ifcopenshell.util.element.get_type(element)
+        if element_type:
+            is_bim_tool = current_tool.idname == "bim.bim_tool"
+            if is_bim_tool:
+                props.ifc_class = element_type.is_a()
+            if is_bim_tool or TOOLS_TO_CLASSES_MAP.get(current_tool.idname) == element_type.is_a():
+                props.relating_type_id = str(element_type.id())
    extrusion = tool.Model.get_extrusion(representation)
    if not extrusion:
        return
@@ -124,7 +127,6 @@ def update_bim_tool_props():
        return x_angle

    si_conversion = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
-    props = bpy.context.scene.BIMModelProperties
    if not AuthoringData.is_loaded:
        AuthoringData.load()

@@ -175,30 +177,20 @@ def refresh_ui_data():
        except AttributeError:
            pass

-    if isinstance(tool.Ifc.get(), ifcopenshell.sqlite):
-        tool.Ifc.get().clear_cache()
-
-
-def purge_module_data():
-    from blenderbim.bim import modules
-
-    refresh_ui_data()
-    for name, value in modules.items():
-        try:
-            getattr(getattr(getattr(ifcopenshell.api, name), "data"), "Data").purge()
-        except AttributeError:
-            pass
-
+        # TODO: deprecate prop purge functions and refactor into data classes.
        try:
            getattr(value, "prop").purge()
        except AttributeError:
            pass

+    if isinstance(tool.Ifc.get(), ifcopenshell.sqlite):
+        tool.Ifc.get().clear_cache()
+

@persistent
 def loadIfcStore(scene):
    IfcStore.purge()
-    purge_module_data()
+    refresh_ui_data()
    if not IfcStore.get_file():
        return
    IfcStore.get_schema()
@@ -210,7 +202,7 @@ def undo_post(scene):
    if IfcStore.last_transaction != bpy.context.scene.BIMProperties.last_transaction:
        IfcStore.last_transaction = bpy.context.scene.BIMProperties.last_transaction
        IfcStore.undo(until_key=bpy.context.scene.BIMProperties.last_transaction)
-        purge_module_data()
+        refresh_ui_data()
    tool.Ifc.rebuild_element_maps()


@@ -219,7 +211,7 @@ def redo_post(scene):
    if IfcStore.last_transaction != bpy.context.scene.BIMProperties.last_transaction:
        IfcStore.last_transaction = bpy.context.scene.BIMProperties.last_transaction
        IfcStore.redo(until_key=bpy.context.scene.BIMProperties.last_transaction)
-        purge_module_data()
+        refresh_ui_data()
    tool.Ifc.rebuild_element_maps()


@@ -273,6 +273,81 @@ def convert_property_group_from_si(property_group, skip_props=()):
        setattr(property_group, prop_name, prop_value)


+def draw_filter(layout, props, data, module):
+    if not data.is_loaded:
+        data.load()
+
+    sprops = bpy.context.scene.BIMSearchProperties
+
+    if tool.Ifc.get():
+        row = layout.row(align=True)
+        row.label(text=f"{len(data.data['saved_searches'])} Saved Searches")
+
+        if data.data["saved_searches"]:
+            row.operator("bim.load_search", text="", icon="IMPORT").module = module
+        row.operator("bim.save_search", text="", icon="EXPORT").module = module
+
+    row = layout.row(align=True)
+    row.operator("bim.add_filter_group", text="Add Search Group", icon="ADD").module = module
+    row.operator("bim.edit_filter_query", text="", icon="FILTER").module = module
+
+    for i, filter_group in enumerate(props.filter_groups):
+        box = layout.box()
+
+        row = box.row(align=True)
+        row.prop(sprops, "facet", text="")
+        op = row.operator("bim.add_filter", text="Add Filter", icon="ADD")
+        op.type = sprops.facet
+        op.index = i
+        op.module = module
+
+        for j, ifc_filter in enumerate(filter_group.filters):
+            if ifc_filter.type == "entity":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "value", text="", icon="FILE_3D")
+            elif ifc_filter.type == "attribute":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "name", text="", icon="COPY_ID")
+                row.prop(ifc_filter, "value", text="")
+            elif ifc_filter.type == "type":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "value", text="", icon="FILE_VOLUME")
+            elif ifc_filter.type == "material":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "value", text="", icon="MATERIAL")
+            elif ifc_filter.type == "property":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "pset", text="", icon="PROPERTIES")
+                row.prop(ifc_filter, "name", text="")
+                row.prop(ifc_filter, "value", text="")
+            elif ifc_filter.type == "classification":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "value", text="", icon="OUTLINER")
+            elif ifc_filter.type == "location":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "value", text="", icon="PACKAGE")
+            elif ifc_filter.type == "query":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "name", text="", icon="POINTCLOUD_DATA")
+                row.prop(ifc_filter, "value", text="")
+            elif ifc_filter.type == "instance":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "value", text="", icon="GRIP")
+                op = row.operator("bim.select_filter_elements", text="", icon="EYEDROPPER")
+                op.group_index = i
+                op.index = j
+                op.module = module
+            op = row.operator("bim.remove_filter", text="", icon="X")
+            op.group_index = i
+            op.index = j
+            op.module = module
+
+        row = box.row()
+        op = row.operator("bim.remove_filter_group", icon="X")
+        op.index = i
+        op.module = module
+
+
 # TODO this should move into ifcopenshell.util


@@ -220,8 +220,9 @@ class IfcStore:
        if isinstance(obj, bpy.types.Material):
            blenderbim.bim.handler.subscribe_to(obj, "diffuse_color", blenderbim.bim.handler.color_callback)
        elif isinstance(obj, bpy.types.Object):
-            blenderbim.bim.handler.subscribe_to(obj, "mode", blenderbim.bim.handler.mode_callback)
-            blenderbim.bim.handler.subscribe_to(obj, "active_material_index", blenderbim.bim.handler.active_material_index_callback)
+            blenderbim.bim.handler.subscribe_to(
+                obj, "active_material_index", blenderbim.bim.handler.active_material_index_callback
+            )

        if IfcStore.history:
            data = {"id": element.id(), "guid": getattr(element, "GlobalId", None), "obj": obj.name}
@@ -247,8 +248,9 @@ class IfcStore:
        if isinstance(obj, bpy.types.Material):
            blenderbim.bim.handler.subscribe_to(obj, "diffuse_color", blenderbim.bim.handler.color_callback)
        elif isinstance(obj, bpy.types.Object):
-            blenderbim.bim.handler.subscribe_to(obj, "mode", blenderbim.bim.handler.mode_callback)
-            blenderbim.bim.handler.subscribe_to(obj, "active_material_index", blenderbim.bim.handler.active_material_index_callback)
+            blenderbim.bim.handler.subscribe_to(
+                obj, "active_material_index", blenderbim.bim.handler.active_material_index_callback
+            )
        # TODO Listeners are not re-registered. Does this cause nasty problems to debug later on?
        # TODO We're handling id_map and guid_map, but what about edited_objs? This might cause big problems.

@@ -321,7 +323,7 @@ class IfcStore:
            IfcStore.begin_transaction(operator)
            if tool.Ifc.get():
                tool.Ifc.get().begin_transaction()
-            if BrickStore.graph:
+            if BrickStore.graph is not None:  # `if BrickStore.graph` by itself takes ages.
                BrickStore.begin_transaction()
            # This empty transaction ensures that each operator has at least one transaction
            IfcStore.add_transaction_operation(operator, rollback=lambda data: True, commit=lambda data: True)
@@ -339,7 +341,7 @@ class IfcStore:
                IfcStore.add_transaction_operation(
                    operator, rollback=lambda d: tool.Ifc.get().undo(), commit=lambda d: tool.Ifc.get().redo()
                )
-            if BrickStore.graph:
+            if BrickStore.graph is not None:  # `if BrickStore.graph` by itself takes ages.
                BrickStore.end_transaction()
            IfcStore.end_transaction(operator)
            blenderbim.bim.handler.refresh_ui_data()
@@ -20,10 +20,9 @@ import os
 import re
 import bpy
 import time
+import json
 import bmesh
-import shutil
 import logging
-import threading
 import mathutils
 import numpy as np
 import multiprocessing
@@ -31,7 +30,6 @@ import ifcopenshell
 import ifcopenshell.geom
 import ifcopenshell.util.unit
 import ifcopenshell.util.element
-import ifcopenshell.util.selector
 import ifcopenshell.util.geolocation
 import blenderbim.tool as tool
 from itertools import chain, accumulate
@@ -39,16 +37,6 @@ from blenderbim.bim.ifc import IfcStore
 from blenderbim.bim.module.drawing.prop import ANNOTATION_TYPES_DATA


-class FileCopy(threading.Thread):
-    def __init__(self, file_path, destination):
-        threading.Thread.__init__(self)
-        self.file_path = file_path
-        self.destination = destination
-
-    def run(self):
-        shutil.copy(self.file_path, self.destination)
-
-
 class MaterialCreator:
    def __init__(self, ifc_import_settings, ifc_importer):
        self.mesh = None
@@ -108,7 +96,9 @@ class MaterialCreator:
                    has_parsed = True
        elif hasattr(element, "RepresentationMaps"):
            for representation_map in element.RepresentationMaps:
-                if self.parse_representation(representation_map.MappedRepresentation):
+                if not representation_map.MappedRepresentation:
+                    has_parsed = True  # Accommodate invalid IFC data from Revit
+                elif self.parse_representation(representation_map.MappedRepresentation):
                    has_parsed = True
        return has_parsed

@@ -158,12 +148,15 @@ class MaterialCreator:
        faces_remap = None
        texture_map = None
        if coordinates.is_a("IfcIndexedPolygonalTextureMap"):
-            faces_remap = [[coordinates_remap[i-1] for i in tex_coord_index.TexCoordsOf.CoordIndex]
-                        for tex_coord_index in coordinates.TexCoordIndices]
+            faces_remap = [
+                [coordinates_remap[i - 1] for i in tex_coord_index.TexCoordsOf.CoordIndex]
+                for tex_coord_index in coordinates.TexCoordIndices
+            ]
            texture_map = [tex_coord_index.TexCoordIndex for tex_coord_index in coordinates.TexCoordIndices]
        elif coordinates.is_a("IfcIndexedTriangleTextureMap"):
-            faces_remap = [[coordinates_remap[i-1] for i in triangle_face]
-                        for triangle_face in coordinates.MappedTo.CoordIndex]
+            faces_remap = [
+                [coordinates_remap[i - 1] for i in triangle_face] for triangle_face in coordinates.MappedTo.CoordIndex
+            ]
            texture_map = coordinates.TexCoordIndex

        # apply uv to each face
@@ -178,7 +171,7 @@ class MaterialCreator:
            )
            # apply uv to each loop
            for loop, i in zip(bface.loops, texCoordIndex):
-                loop[uv_layer].uv = coordinates.TexCoords.TexCoordsList[i-1]
+                loop[uv_layer].uv = coordinates.TexCoords.TexCoordsList[i - 1]

        # Finish up, write the bmesh back to the mesh
        bm.to_mesh(self.mesh)
@@ -223,20 +216,8 @@ class IfcImporter:
        self.ifc_import_settings = ifc_import_settings
        self.diff = None
        self.file = None
-        self.settings = ifcopenshell.geom.settings()
-        self.settings.set_deflection_tolerance(self.ifc_import_settings.deflection_tolerance)
-        self.settings.set_angular_tolerance(self.ifc_import_settings.angular_tolerance)
-        self.settings.set(self.settings.STRICT_TOLERANCE, True)
-        self.settings_curve = ifcopenshell.geom.settings()
-        self.settings_curve.set_deflection_tolerance(self.ifc_import_settings.deflection_tolerance)
-        self.settings_curve.set_angular_tolerance(self.ifc_import_settings.angular_tolerance)
-        self.settings_curve.set(self.settings_curve.STRICT_TOLERANCE, True)
-        self.settings_curve.set(self.settings_curve.INCLUDE_CURVES, True)
-        self.settings_native = ifcopenshell.geom.settings()
-        self.settings_native.set(self.settings_native.INCLUDE_CURVES, True)
-        self.settings_2d = ifcopenshell.geom.settings()
-        self.settings_2d.set(self.settings_2d.INCLUDE_CURVES, True)
-        self.settings_2d.set(self.settings_2d.STRICT_TOLERANCE, True)
+        self.context_settings = []
+        self.contexts = []
        self.project = None
        self.has_existing_project = False
        self.collections = {}
@@ -275,6 +256,8 @@ class IfcImporter:
        self.profile_code("Calculate unit scale")
        self.calculate_model_offset()
        self.profile_code("Calculate model offset")
+        self.predict_dense_mesh()
+        self.profile_code("Predict dense mesh")
        self.set_units()
        self.profile_code("Set units")
        self.create_project()
@@ -318,6 +301,9 @@ class IfcImporter:
            self.profile_code("Merging by colour")
        self.set_default_context()
        self.profile_code("Setting default context")
+        if self.ifc_import_settings.should_setup_viewport_camera:
+            self.setup_viewport_camera()
+        self.setup_arrays()
        self.update_progress(100)
        bpy.context.window_manager.progress_end()

@@ -340,32 +326,83 @@ class IfcImporter:
        return abs(coords[0]) > limit or abs(coords[1]) > limit or abs(coords[2]) > limit

    def process_context_filter(self):
-        # Facetation is to accommodate broken Revit files
-        # See https://forums.buildingsmart.org/t/suggestions-on-how-to-improve-clarity-of-representation-context-usage-in-documentation/3663/6?u=moult
-        self.body_contexts = [
-            c.id()
-            for c in self.file.by_type("IfcGeometricRepresentationSubContext")
-            if c.ContextIdentifier in ["Body", "Facetation"]
-        ]
-        # Ideally, all representations should be in a subcontext, but some BIM programs don't do this correctly
-        self.body_contexts.extend(
-            [
-                c.id()
-                for c in self.file.by_type("IfcGeometricRepresentationContext", include_subtypes=False)
-                if c.ContextType == "Model"
-            ]
-        )
-        if self.body_contexts:
-            self.settings.set_context_ids(self.body_contexts)
        # Annotation ContextType is to accommodate broken Revit files
        # See https://github.com/Autodesk/revit-ifc/issues/187
-        self.plan_contexts = [
-            c.id()
-            for c in self.file.by_type("IfcGeometricRepresentationContext")
-            if c.ContextType in ["Plan", "Annotation"] or c.ContextIdentifier == "Annotation"
+        type_priority = ["Model", "Plan", "Annotation"]
+        identifier_priority = [
+            "Body",
+            "Body-FallBack",
+            "Facetation",
+            "FootPrint",
+            "Profile",
+            "Surface",
+            "Reference",
+            "Axis",
+            "Clearance",
+            "Box",
+            "Lighting",
+            "Annotation",
+            "CoG",
        ]
-        if self.plan_contexts:
-            self.settings_2d.set_context_ids(self.plan_contexts)
+        target_view_priority = [
+            "MODEL_VIEW",
+            "PLAN_VIEW",
+            "REFLECTED_PLAN_VIEW",
+            "ELEVATION_VIEW",
+            "SECTION_VIEW",
+            "GRAPH_VIEW",
+            "SKETCH_VIEW",
+            "USERDEFINED",
+            "NOTDEFINED",
+        ]
+
+        def sort_context(context):
+            priority = []
+            if context.ContextType in type_priority:
+                priority.append(len(type_priority) - type_priority.index(context.ContextType))
+            else:
+                priority.append(0)
+            return tuple(priority)
+
+        def sort_subcontext(context):
+            priority = []
+
+            if context.ContextType in type_priority:
+                priority.append(len(type_priority) - type_priority.index(context.ContextType))
+            else:
+                priority.append(0)
+
+            if context.ContextIdentifier in identifier_priority:
+                priority.append(len(identifier_priority) - identifier_priority.index(context.ContextIdentifier))
+            else:
+                priority.append(0)
+
+            if context.TargetView in target_view_priority:
+                priority.append(len(target_view_priority) - target_view_priority.index(context.TargetView))
+            else:
+                priority.append(0)
+
+            priority.append(context.TargetScale or 0)  # Big then small
+
+            return tuple(priority)
+
+        # Ideally, all representations should be in a subcontext, but some BIM programs don't do this correctly
+        self.contexts = sorted(
+            self.file.by_type("IfcGeometricRepresentationSubContext"), key=sort_subcontext, reverse=True
+        ) + sorted(
+            self.file.by_type("IfcGeometricRepresentationContext", include_subtypes=False),
+            key=sort_context,
+            reverse=True,
+        )
+
+        for context in self.contexts:
+            settings = ifcopenshell.geom.settings()
+            settings.set_deflection_tolerance(self.ifc_import_settings.deflection_tolerance)
+            settings.set_angular_tolerance(self.ifc_import_settings.angular_tolerance)
+            settings.set(settings.STRICT_TOLERANCE, True)
+            settings.set(settings.INCLUDE_CURVES, True)
+            settings.set_context_ids([context.id()])
+            self.context_settings.append(settings)

    def process_element_filter(self):
        offset = self.ifc_import_settings.element_offset
@@ -436,13 +473,51 @@ class IfcImporter:
            or getattr(element, "HasOpenings", None)
        ):
            return
-        representations = self.get_transformed_body_representations(element.Representation.Representations)
+
+        representation = None
+        representation_priority = None
+        context = None
+
+        for rep in element.Representation.Representations:
+            if rep.ContextOfItems in self.contexts:
+                rep_priority = self.contexts.index(rep.ContextOfItems)
+                if representation is None or rep_priority < representation_priority:
+                    representation = rep
+                    representation_priority = rep_priority
+                    context = rep.ContextOfItems
+
+        if not representation:
+            return
+
+        matrix = np.eye(4)
+        representation_id = None
+
+        rep = representation
+        while True:
+            if rep.Items and rep.Items[0].is_a("IfcMappedItem"):
+                rep_matrix = ifcopenshell.util.placement.get_mappeditem_transformation(rep.Items[0])
+                if not np.allclose(rep_matrix, np.eye(4)):
+                    matrix = rep_matrix @ matrix
+                    if representation_id is None:
+                        representation_id = rep.id()
+                rep = rep.Items[0].MappingSource.MappedRepresentation
+            else:
+                if representation_id is None:
+                    representation_id = rep.id()
+                break
+        resolved_representation = ifcopenshell.util.representation.resolve_representation(representation)
+
+        matrix[0][3] *= self.unit_scale
+        matrix[1][3] *= self.unit_scale
+        matrix[2][3] *= self.unit_scale

        # Single swept disk solids (e.g. rebar) are better natively represented as beveled curves
-        if self.is_native_swept_disk_solid(element, representations):
+        if self.is_native_swept_disk_solid(element, resolved_representation):
            self.native_data[element.GlobalId] = {
-                "representations": representations,
-                "representation": self.get_body_representation(element.Representation.Representations),
+                "matrix": matrix,
+                "context": context,
+                "geometry_id": representation_id,
+                "representation": resolved_representation,
                "type": "IfcSweptDiskSolid",
            }
            return True
@@ -451,51 +526,52 @@ class IfcImporter:
            return False  # Performance improvements only occur on edge cases currently

        # FacetedBreps (without voids) are meshes. See #841.
-        if self.is_native_faceted_brep(representations):
+        if self.is_native_faceted_brep(resolved_representation):
            self.native_data[element.GlobalId] = {
-                "representations": representations,
-                "representation": self.get_body_representation(element.Representation.Representations),
+                "matrix": matrix,
+                "context": context,
+                "geometry_id": representation_id,
+                "representation": resolved_representation,
                "type": "IfcFacetedBrep",
            }
            return True

-        if self.is_native_face_based_surface_model(representations):
+        if self.is_native_face_based_surface_model(resolved_representation):
            self.native_data[element.GlobalId] = {
-                "representations": representations,
-                "representation": self.get_body_representation(element.Representation.Representations),
+                "matrix": matrix,
+                "context": context,
+                "geometry_id": representation_id,
+                "representation": resolved_representation,
                "type": "IfcFaceBasedSurfaceModel",
            }
            return True

-    def is_native_swept_disk_solid(self, element, representations):
-        for representation in representations:
-            items = representation["raw"].Items or []  # Be forgiving of invalid IFCs because Revit :(
-            if len(items) == 1 and items[0].is_a("IfcSweptDiskSolid"):
-                if tool.Blender.Modifier.is_railing(element):
-                    return False
-                return True
-            elif len(items) and (  # See #2508 why we accommodate for invalid IFCs here
-                items[0].is_a("IfcSweptDiskSolid")
-                and len({i.is_a() for i in items}) == 1
-                and len({i.Radius for i in items}) == 1
-            ):
-                if tool.Blender.Modifier.is_railing(element):
-                    return False
-                return True
+    def is_native_swept_disk_solid(self, element, representation):
+        items = representation.Items or []  # Be forgiving of invalid IFCs because Revit :(
+        if len(items) == 1 and items[0].is_a("IfcSweptDiskSolid"):
+            if tool.Blender.Modifier.is_railing(element):
+                return False
+            return True
+        elif len(items) and (  # See #2508 why we accommodate for invalid IFCs here
+            items[0].is_a("IfcSweptDiskSolid")
+            and len({i.is_a() for i in items}) == 1
+            and len({i.Radius for i in items}) == 1
+        ):
+            if tool.Blender.Modifier.is_railing(element):
+                return False
+            return True
        return False

-    def is_native_faceted_brep(self, representations):
-        for representation in representations:
-            for i in representation["raw"].Items:
-                if i.is_a() != "IfcFacetedBrep":
-                    return False
+    def is_native_faceted_brep(self, representation):
+        for i in representation.Items:
+            if i.is_a() != "IfcFacetedBrep":
+                return False
        return True

-    def is_native_face_based_surface_model(self, representations):
-        for representation in representations:
-            for i in representation["raw"].Items:
-                if i.is_a() != "IfcFaceBasedSurfaceModel":
-                    return False
+    def is_native_face_based_surface_model(self, representation):
+        for i in representation.Items:
+            if i.is_a() != "IfcFaceBasedSurfaceModel":
+                return False
        return True

    def get_products_from_shape_representation(self, element):
@@ -507,6 +583,26 @@ class IfcImporter:
                        products.extend(self.get_products_from_shape_representation(inverse_element))
        return products

+    def predict_dense_mesh(self):
+        threshold = 10000  # Just from experience.
+
+        faces = [len(e.CfsFaces) for e in self.file.by_type("IfcClosedShell")]
+        if faces and max(faces) > threshold:
+            self.ifc_import_settings.should_use_native_meshes = True
+            return
+
+        if self.file.schema == "IFC2X3":
+            return
+
+        faces = [len(e.Faces) for e in self.file.by_type("IfcPolygonalFaceSet")]
+        if faces and max(faces) > threshold:
+            self.ifc_import_settings.should_use_native_meshes = True
+            return
+
+        faces = [len(e.CoordIndex) for e in self.file.by_type("IfcTriangulatedFaceSet")]
+        if faces and max(faces) > threshold:
+            self.ifc_import_settings.should_use_native_meshes = True
+
    def calculate_model_offset(self):
        props = bpy.context.scene.BIMGeoreferenceProperties
        if props.has_blender_offset:
@@ -573,7 +669,9 @@ class IfcImporter:
                return
            if not self.does_element_likely_have_geometry_far_away(element):
                continue
-            shape = ifcopenshell.geom.create_shape(self.settings, element)
+            shape = self.create_generic_shape(element)
+            if not shape:
+                continue
            m = shape.transformation.matrix.data
            mat = np.array(
                ([m[0], m[3], m[6], m[9]], [m[1], m[4], m[7], m[10]], [m[2], m[5], m[8], m[11]], [0, 0, 0, 1])
@@ -645,7 +743,7 @@ class IfcImporter:
                self.ifc_import_settings.logger.error("An invalid grid was found %s", grid)
                continue
            if grid.Representation:
-                shape = ifcopenshell.geom.create_shape(self.settings_2d, grid)
+                shape = self.create_generic_shape(grid)
            grid_obj = self.create_product(grid, shape)
            if bpy.context.preferences.addons["blenderbim"].preferences.lock_grids_on_import:
                grid_obj.lock_location = (True, True, True)
@@ -664,7 +762,7 @@ class IfcImporter:

    def create_grid_axes(self, axes, grid_collection, grid_obj):
        for axis in axes:
-            shape = ifcopenshell.geom.create_shape(self.settings_2d, axis.AxisCurve)
+            shape = self.create_generic_shape(axis.AxisCurve)
            mesh = self.create_mesh(axis, shape)
            obj = bpy.data.objects.new(f"IfcGridAxis/{axis.AxisTag}", mesh)
            if bpy.context.preferences.addons["blenderbim"].preferences.lock_grids_on_import:
@@ -684,27 +782,21 @@ class IfcImporter:
        self.ifc_import_settings.logger.info("Creating object %s", element)
        mesh = None
        if self.ifc_import_settings.should_load_geometry:
-            representation = ifcopenshell.util.representation.get_representation(element, "Model", "Body", "MODEL_VIEW")
-            if not representation:
-                representation = ifcopenshell.util.representation.get_representation(element, "Plan", "Annotation")
-            if not representation:
-                representation = ifcopenshell.util.representation.get_representation(element, "Model", "Annotation")
-            if representation:
+            for context in self.contexts:
+                representation = ifcopenshell.util.representation.get_representation(element, context)
+                if not representation:
+                    continue
                mesh_name = "{}/{}".format(representation.ContextOfItems.id(), representation.id())
                mesh = self.meshes.get(mesh_name)
                if mesh is None:
-                    shape = None
-                    try:
-                        shape = ifcopenshell.geom.create_shape(self.settings, representation)
-                    except:
-                        try:
-                            shape = ifcopenshell.geom.create_shape(self.settings_2d, representation)
-                        except:
-                            self.ifc_import_settings.logger.error("Failed to generate shape for %s", element)
+                    shape = self.create_generic_shape(representation)
                    if shape:
                        mesh = self.create_mesh(element, shape)
                        tool.Loader.link_mesh(shape, mesh)
                        self.meshes[mesh_name] = mesh
+                    else:
+                        self.ifc_import_settings.logger.error("Failed to generate shape for %s", element)
+                break
        obj = bpy.data.objects.new(tool.Loader.get_name(element), mesh)
        self.link_element(element, obj)
        self.material_creator.create(element, obj, mesh)
@@ -728,20 +820,16 @@ class IfcImporter:
                checkpoint = time.time()
                self.incrementally_merge_objects()
            native_data = self.native_data[element.GlobalId]
-            representation = native_data["representation"]
-            if not representation:
-                continue
-            context_id = representation.ContextOfItems.id() if hasattr(representation, "ContextOfItems") else 0
-            mesh_name = f"{context_id}/{representation.id()}"
+            mesh_name = f"{native_data['context'].id()}/{native_data['geometry_id']}"
            mesh = self.meshes.get(mesh_name)
            if mesh is None:
                if native_data["type"] == "IfcSweptDiskSolid":
-                    mesh = self.create_native_swept_disk_solid(element, mesh_name)
+                    mesh = self.create_native_swept_disk_solid(element, mesh_name, native_data)
                elif native_data["type"] == "IfcFacetedBrep":
-                    mesh = self.create_native_faceted_brep(element, mesh_name)
+                    mesh = self.create_native_faceted_brep(element, mesh_name, native_data)
                elif native_data["type"] == "IfcFaceBasedSurfaceModel":
-                    mesh = self.create_native_faceted_brep(element, mesh_name)
-                tool.Ifc.link(representation, mesh)
+                    mesh = self.create_native_faceted_brep(element, mesh_name, native_data)
+                tool.Ifc.link(tool.Ifc.get().by_id(native_data["geometry_id"]), mesh)
                mesh.name = mesh_name
                self.meshes[mesh_name] = mesh
            self.create_product(element, mesh=mesh)
@@ -753,21 +841,25 @@ class IfcImporter:
    def create_elements(self):
        self.create_generic_elements(self.elements)

+    def create_generic_shape(self, element):
+        for settings in self.context_settings:
+            try:
+                result = ifcopenshell.geom.create_shape(settings, element)
+                if result:
+                    return result
+            except:
+                pass
+
    def create_generic_elements(self, elements):
        if isinstance(self.file, ifcopenshell.sqlite):
            return self.create_generic_sqlite_elements(elements)

-        # Based on my experience in viewing BIM models, representations are prioritised as follows:
-        # 1. 3D Body, 2. 2D Body, 3. 2D Plans / annotations, 4. Point clouds, 5. No representation
-        # If an element has a representation that doesn't follow 1, 2, 3, or 4, it will not show by default.
-        # The user can load them later if they want to view them.
        if self.ifc_import_settings.should_load_geometry:
-            products = self.create_products(elements)
-            elements -= products
-            products = self.create_products(elements, settings=self.settings_curve)
-            elements -= products
-            products = self.create_products(elements, settings=self.settings_2d)
-            elements -= products
+            for settings in self.context_settings:
+                if not elements:
+                    break
+                products = self.create_products(elements, settings=settings)
+                elements -= products
            products = self.create_pointclouds(elements)
            elements -= products

@@ -825,9 +917,6 @@ class IfcImporter:
            self.create_product(element, mesh=mesh)

    def create_products(self, products, settings=None):
-        if settings is None:
-            settings = self.settings
-
        results = set()
        if not products:
            return results
@@ -864,16 +953,8 @@ class IfcImporter:
            shape = iterator.get()
            if shape:
                product = self.file.by_id(shape.id)
-                if self.body_contexts:
-                    self.create_product(product, shape)
-                    results.add(product)
-                else:
-                    if shape.context not in ["Body", "Facetation"] and IfcStore.get_element(shape.id):
-                        # We only load a single context, and we prioritise the Body context. See #1290.
-                        pass
-                    else:
-                        self.create_product(product, shape)
-                        results.add(product)
+                self.create_product(product, shape)
+                results.add(product)
            if not iterator.next():
                break
        print("Done creating geometry")
@@ -901,10 +982,10 @@ class IfcImporter:
        self.structural_collection.children.link(self.structural_connection_collection)
        self.project["blender"].children.link(self.structural_collection)

-        self.create_products(self.file.by_type("IfcStructuralCurveMember"), settings=self.settings_2d)
-        self.create_products(self.file.by_type("IfcStructuralCurveConnection"), settings=self.settings_2d)
-        self.create_products(self.file.by_type("IfcStructuralSurfaceMember"), settings=self.settings_2d)
-        self.create_products(self.file.by_type("IfcStructuralSurfaceConnection"), settings=self.settings_2d)
+        self.create_generic_elements(set(self.file.by_type("IfcStructuralCurveMember")))
+        self.create_generic_elements(set(self.file.by_type("IfcStructuralCurveConnection")))
+        self.create_generic_elements(set(self.file.by_type("IfcStructuralSurfaceMember")))
+        self.create_generic_elements(set(self.file.by_type("IfcStructuralSurfaceConnection")))
        self.create_structural_point_connections()

    def create_structural_point_connections(self):
@@ -973,10 +1054,14 @@ class IfcImporter:
        placement_matrix = self.get_element_matrix(product)
        vertex_list = []
        for item in representation.Items:
-            if item.is_a("IfcCartesianPointList"):
+            if item.is_a("IfcCartesianPointList3D"):
                vertex_list.extend(
                    mathutils.Vector(list(coordinates)) * self.unit_scale for coordinates in item.CoordList
                )
+            elif item.is_a("IfcCartesianPointList2D"):
+                vertex_list.extend(
+                    mathutils.Vector(list(coordinates)).to_3d() * self.unit_scale for coordinates in item.CoordList
+                )
            elif item.is_a("IfcCartesianPoint"):
                vertex_list.append(mathutils.Vector(list(item.Coordinates)) * self.unit_scale)

@@ -1049,7 +1134,7 @@ class IfcImporter:
            elif style.is_a("IfcPresentationStyleAssignment"):
                styles.extend(style.Styles)

-    def create_native_faceted_brep(self, element, mesh_name):
+    def create_native_faceted_brep(self, element, mesh_name, native_data):
        # TODO: georeferencing?
        # co [x y z x y z x y z ...]
        # vertex_index [i i i i i ...]
@@ -1066,10 +1151,11 @@ class IfcImporter:
            "material_ids": [],
        }

-        for representation in element.Representation.Representations:
-            if representation.ContextOfItems.id() not in self.body_contexts:
-                continue
-            self.convert_representation(representation)
+        for item in native_data["representation"].Items:
+            if item.is_a() == "IfcFacetedBrep":
+                self.convert_representation_item_faceted_brep(item)
+            elif item.is_a() == "IfcFaceBasedSurfaceModel":
+                self.convert_representation_item_face_based_surface_model(item)

        mesh = bpy.data.meshes.new("Native")

@@ -1086,19 +1172,33 @@ class IfcImporter:
            )
            verts = [None] * len(self.mesh_data["co"])
            for i in range(0, len(self.mesh_data["co"]), 3):
-                verts[i], verts[i + 1], verts[i + 2] = ifcopenshell.util.geolocation.enh2xyz(
-                    self.mesh_data["co"][i] * self.unit_scale,
-                    self.mesh_data["co"][i + 1] * self.unit_scale,
-                    self.mesh_data["co"][i + 2] * self.unit_scale,
-                    offset_point[0] * self.unit_scale,
-                    offset_point[1] * self.unit_scale,
-                    offset_point[2] * self.unit_scale,
-                    float(props.blender_x_axis_abscissa),
-                    float(props.blender_x_axis_ordinate),
+                verts[i], verts[i + 1], verts[i + 2], _ = native_data["matrix"] @ mathutils.Vector(
+                    (
+                        *ifcopenshell.util.geolocation.enh2xyz(
+                            self.mesh_data["co"][i] * self.unit_scale,
+                            self.mesh_data["co"][i + 1] * self.unit_scale,
+                            self.mesh_data["co"][i + 2] * self.unit_scale,
+                            offset_point[0] * self.unit_scale,
+                            offset_point[1] * self.unit_scale,
+                            offset_point[2] * self.unit_scale,
+                            float(props.blender_x_axis_abscissa),
+                            float(props.blender_x_axis_ordinate),
+                        ),
+                        1,
+                    )
                )
            mesh["has_cartesian_point_offset"] = True
        else:
-            verts = [c * self.unit_scale for c in self.mesh_data["co"]]
+            verts = [None] * len(self.mesh_data["co"])
+            for i in range(0, len(self.mesh_data["co"]), 3):
+                verts[i], verts[i + 1], verts[i + 2], _ = native_data["matrix"] @ mathutils.Vector(
+                    (
+                        self.mesh_data["co"][i] * self.unit_scale,
+                        self.mesh_data["co"][i + 1] * self.unit_scale,
+                        self.mesh_data["co"][i + 2] * self.unit_scale,
+                        1,
+                    )
+                )
            mesh["has_cartesian_point_offset"] = False

        mesh.vertices.add(self.mesh_data["total_verts"])
@@ -1108,25 +1208,13 @@ class IfcImporter:
        mesh.polygons.add(self.mesh_data["total_polygons"])
        mesh.polygons.foreach_set("loop_start", self.mesh_data["loop_start"])
        mesh.polygons.foreach_set("loop_total", self.mesh_data["loop_total"])
+        mesh.polygons.foreach_set("use_smooth", [0] * self.mesh_data["total_polygons"])
        mesh.update()

        mesh["ios_materials"] = self.mesh_data["materials"]
        mesh["ios_material_ids"] = self.mesh_data["material_ids"]
        return mesh

-    def convert_representation(self, representation):
-        for item in representation.Items:
-            self.convert_representation_item(item)
-
-    def convert_representation_item(self, item):
-        if item.is_a("IfcMappedItem"):
-            # mapping_target = matrix
-            self.convert_representation(item.MappingSource.MappedRepresentation)
-        elif item.is_a() == "IfcFacetedBrep":
-            self.convert_representation_item_faceted_brep(item)
-        elif item.is_a() == "IfcFaceBasedSurfaceModel":
-            self.convert_representation_item_face_based_surface_model(item)
-
    def convert_representation_item_face_based_surface_model(self, item):
        mesh = item.get_info_2(recursive=True)
        for face_set in mesh["FbsmFaces"]:
@@ -1221,63 +1309,34 @@ class IfcImporter:
        self.mesh_data["loop_start"].extend(loop_start)
        # list(di1.keys())

-    def create_native_swept_disk_solid(self, element, mesh_name):
+    def create_native_swept_disk_solid(self, element, mesh_name, native_data):
        # TODO: georeferencing?
        curve = bpy.data.curves.new(mesh_name, type="CURVE")
        curve.dimensions = "3D"
        curve.resolution_u = 2
        polyline = curve.splines.new("POLY")

-        for representation in self.native_data[element.GlobalId]["representations"]:
-            for item in representation["raw"].Items:
-                # TODO: support inner radius, start param, and end param
-                geometry = ifcopenshell.geom.create_shape(self.settings_native, item.Directrix)
-                e = geometry.edges
-                v = geometry.verts
-                vertices = [[v[i], v[i + 1], v[i + 2], 1] for i in range(0, len(v), 3)]
-                edges = [[e[i], e[i + 1]] for i in range(0, len(e), 2)]
-                v2 = None
-                for edge in edges:
-                    v1 = vertices[edge[0]]
-                    if v1 != v2:
-                        polyline = curve.splines.new("POLY")
-                        polyline.points[-1].co = representation["matrix"] @ mathutils.Vector(v1)
-                    v2 = vertices[edge[1]]
-                    polyline.points.add(1)
-                    polyline.points[-1].co = representation["matrix"] @ mathutils.Vector(v2)
+        for item in native_data["representation"].Items:
+            # TODO: support inner radius, start param, and end param
+            geometry = self.create_generic_shape(item.Directrix)
+            e = geometry.edges
+            v = geometry.verts
+            vertices = [[v[i], v[i + 1], v[i + 2], 1] for i in range(0, len(v), 3)]
+            edges = [[e[i], e[i + 1]] for i in range(0, len(e), 2)]
+            v2 = None
+            for edge in edges:
+                v1 = vertices[edge[0]]
+                if v1 != v2:
+                    polyline = curve.splines.new("POLY")
+                    polyline.points[-1].co = native_data["matrix"] @ mathutils.Vector(v1)
+                v2 = vertices[edge[1]]
+                polyline.points.add(1)
+                polyline.points[-1].co = native_data["matrix"] @ mathutils.Vector(v2)

        curve.bevel_depth = self.unit_scale * item.Radius
        curve.use_fill_caps = True
        return curve

-    def create_native_annotation(self, element, mesh_name):
-        # TODO: georeferencing?
-        curve = bpy.data.curves.new(mesh_name, type="CURVE")
-        curve.dimensions = "3D"
-        curve.resolution_u = 2
-        polyline = curve.splines.new("POLY")
-
-        for representation in self.native_data[element.GlobalId]["representations"]:
-            for item in representation["raw"].Items:
-                # TODO: support inner radius, start param, and end param
-                geometry = ifcopenshell.geom.create_shape(self.settings_native, item.Directrix)
-                e = geometry.edges
-                v = geometry.verts
-                vertices = [[v[i], v[i + 1], v[i + 2], 1] for i in range(0, len(v), 3)]
-                edges = [[e[i], e[i + 1]] for i in range(0, len(e), 2)]
-                v2 = None
-                for edge in edges:
-                    v1 = vertices[edge[0]]
-                    if v1 != v2:
-                        polyline = curve.splines.new("POLY")
-                        polyline.points[-1].co = representation["matrix"] @ mathutils.Vector(v1)
-                    v2 = vertices[edge[1]]
-                    polyline.points.add(1)
-                    polyline.points[-1].co = representation["matrix"] @ mathutils.Vector(v2)
-
-        curve.bevel_depth = self.unit_scale * item.Radius
-        return curve
-
    def merge_by_class(self):
        merge_set = {}
        id_set = {}
@@ -1679,41 +1738,6 @@ class IfcImporter:
        result[2][3] *= self.unit_scale
        return result

-    def get_body_representation(self, representations):
-        for representation in representations:
-            if (
-                representation.RepresentationIdentifier == "Body"
-                and representation.RepresentationType == "MappedRepresentation"
-            ):
-                if len(representation.Items) > 1:
-                    return representation
-                return self.get_body_representation([representation.Items[0].MappingSource.MappedRepresentation])
-            elif representation.RepresentationIdentifier == "Body":
-                return representation
-
-    def get_transformed_body_representations(self, representations, matrix=None):
-        if matrix is None:
-            matrix = mathutils.Matrix()
-        results = []
-        for representation in representations:
-            if (
-                representation.RepresentationIdentifier == "Body"
-                and representation.RepresentationType == "MappedRepresentation"
-            ):
-                for item in representation.Items:
-                    # TODO: Confirm if this transformation is right
-                    transform = self.get_axis2placement(item.MappingSource.MappingOrigin)
-                    if item.MappingTarget:
-                        transform = transform @ self.get_cartesiantransformationoperator(item.MappingTarget)
-                    results.extend(
-                        self.get_transformed_body_representations(
-                            [item.MappingSource.MappedRepresentation], transform @ matrix
-                        )
-                    )
-            elif representation.RepresentationIdentifier == "Body":
-                results.append({"raw": representation, "matrix": self.scale_matrix(matrix)})
-        return results
-
    def scale_matrix(self, matrix):
        matrix[0][3] *= self.unit_scale
        matrix[1][3] *= self.unit_scale
@@ -1896,12 +1920,28 @@ class IfcImporter:

    def link_element(self, element, obj):
        self.added_data[element.id()] = obj
-        IfcStore.link_element(element, obj)
+        tool.Ifc.link(element, obj)

    def set_matrix_world(self, obj, matrix_world):
        obj.matrix_world = matrix_world
        tool.Geometry.record_object_position(obj)

+    def setup_viewport_camera(self):
+        context_override = tool.Blender.get_viewport_context()
+        with bpy.context.temp_override(**context_override):
+            bpy.ops.object.select_all(action="SELECT")
+            bpy.ops.view3d.view_selected()
+            bpy.ops.object.select_all(action="DESELECT")
+
+    def setup_arrays(self):
+        for element in self.file.by_type("IfcElement"):
+            pset_data = ifcopenshell.util.element.get_pset(element, "BBIM_Array")
+            if not pset_data or not pset_data.get("Data", None):  # skip array children
+                continue
+            for i in range(len(json.loads(pset_data["Data"]))):
+                tool.Blender.Modifier.Array.set_children_lock_state(element, i, True)
+                tool.Blender.Modifier.Array.constrain_children_to_parent(element)
+

 class IfcImportSettings:
    def __init__(self):
@@ -1924,6 +1964,7 @@ class IfcImportSettings:
        self.element_limit = 30000
        self.has_filter = None
        self.should_filter_spatial_elements = True
+        self.should_setup_viewport_camera = True
        self.elements = set()
        self.collection_mode = "DECOMPOSITION"

@@ -202,6 +202,7 @@ class BIM_OT_select_aggregate(bpy.types.Operator):
        aggregate_obj = tool.Ifc.get_object(aggregate)
        if aggregate_obj in context.selectable_objects:
            aggregate_obj.select_set(True)
+            bpy.context.view_layer.objects.active = aggregate_obj
        return {"FINISHED"}


@@ -31,7 +31,7 @@ class BIM_PT_SceneBoundaries(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_geometry"
+    bl_parent_id = "BIM_PT_tab_geometry"

    @classmethod
    def poll(cls, context):
@@ -35,13 +35,16 @@ classes = (
    operator.ViewBrickItem,
    operator.SerializeBrick,
    operator.AddBrickNamespace,
-    operator.SetBrickListRoot,
    operator.RemoveBrickRelation,
    prop.Brick,
    prop.BIMBrickProperties,
    ui.BIM_PT_brickschema,
-    ui.BIM_PT_ifc_brickschema_references,
+    ui.BIM_PT_brickschema_project_info,
+    ui.BIM_PT_brickschema_namespaces,
+    ui.BIM_PT_brickschema_create_entity,
+    ui.BIM_PT_brickschema_viewport,
    ui.BIM_UL_bricks,
+    ui.BIM_PT_ifc_brickschema_references,
 )


@@ -46,7 +46,7 @@ class BrickschemaData:

    @classmethod
    def get_is_loaded(cls):
-        return BrickStore.graph is not None
+        return BrickStore.graph is not None  # `if BrickStore.graph` by itself takes ages.

    @classmethod
    def active_relations(cls):
@@ -67,45 +67,63 @@ class BrickschemaData:
            PREFIX brick: <https://brickschema.org/schema/Brick#>
            PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
            PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
-            SELECT DISTINCT ?predicate ?object ?sp ?sv WHERE {
-               <{uri}> ?predicate ?object .
-               OPTIONAL {
-               { ?predicate rdfs:range brick:TimeseriesReference . }
-                UNION
-               { ?predicate a brick:EntityProperty . }
-                ?object ?sp ?sv }
+            SELECT DISTINCT ?predicate ?object ?label ?sp ?sv  WHERE {
+                <{uri}> ?predicate ?object .
+                OPTIONAL {
+                    ?object rdfs:label ?label . 
+                }
+                OPTIONAL {
+                    { ?predicate rdfs:range brick:TimeseriesReference . }
+                    UNION
+                    { ?predicate a brick:EntityProperty . }
+                    ?object ?sp ?sv .
+                }
            }
+            GROUP BY ?object
        """.replace(
                "{uri}", uri
            )
        )
        for row in query:
-            predicate = row.get("predicate")
-            predicate_name = predicate.toPython().split("#")[-1]
-            object = row.get("object")
-            object_name = object.toPython().split("#")[-1]
+            predicate_uri = row.get("predicate")
+            predicate_name = predicate_uri.toPython().split("#")[-1]
+            object_uri = row.get("object")
+            object_name = row.get("label")
+            if not object_name:
+                if isinstance(object_uri, BNode):
+                    object_name = "[]"
+                else:
+                    try:
+                        object_name = object_uri.toPython().split("#")[-1]
+                    except:
+                        object_name = str(object_uri)
            results.append(
                {
-                    "predicate": predicate,
+                    "predicate_uri": predicate_uri,
                    "predicate_name": predicate_name,
-                    "object": object,
+                    "object_uri": object_uri,
                    "object_name": object_name,
-                    "is_uri": isinstance(object, URIRef),
-                    "object_uri": object.toPython(),
-                    "is_globalid": predicate == "globalID",
+                    "is_uri": isinstance(object_uri, URIRef),
+                    "is_globalid": predicate_name == "ifcGlobalID",
                }
            )
-            # if isinstance(row.get("object"), BNode):
-            #     for s, p, o in BrickStore.graph.triples((object, None, None)):
-            #         results.append(
-            #             {
-            #                 "predicate": predicate + ":" + p.toPython().split("#")[-1],
-            #                 "object": o.toPython().split("#")[-1],
-            #                 "is_uri": isinstance(o, URIRef),
-            #                 "object_uri": o.toPython(),
-            #                 "is_globalid": p.toPython().split("#")[-1] == "globalID",
-            #             }
-            #         )
+            if isinstance(object_uri, BNode):
+                for subject2, predicate2, object2 in BrickStore.graph.triples((object_uri, None, None)):
+                    predicate2_name = predicate2.toPython().split("#")[-1]
+                    try:
+                        object2_name = object2.toPython().split("#")[-1]
+                    except:
+                        object2_name = str(object2)
+                    results.append(
+                        {
+                            "predicate_uri": None,
+                            "predicate_name": predicate_name + ":" + predicate2_name,
+                            "object_uri": object2,
+                            "object_name": object2_name,
+                            "is_uri": isinstance(object2, URIRef),
+                            "is_globalid": predicate2_name == "ifcGlobalID",
+                        }
+                    )
        return results


@@ -131,7 +149,7 @@ class BrickschemaReferencesData:
        for library in ifc.by_type("IfcLibraryInformation"):
            if tool.Ifc.get_schema() == "IFC2X3":
                results.append((str(library.id()), library.Name or "Unnamed", ""))
-            elif ".ttl" in library.Location:
+            elif library.Location and ".ttl" in library.Location:
                results.append((str(library.id()), library.Name or "Unnamed", ""))
        return results

@@ -37,6 +37,7 @@ class LoadBrickProject(bpy.types.Operator, Operator):
    bl_idname = "bim.load_brick_project"
    bl_label = "Load Brickschema Project"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Load in a Brick project from a file"
    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
    filter_glob: bpy.props.StringProperty(default="*.ttl", options={"HIDDEN"})

@@ -56,6 +57,7 @@ class ViewBrickClass(bpy.types.Operator, Operator):
    bl_idname = "bim.view_brick_class"
    bl_label = "View Brick Class"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Inspect the subclasses of this class"
    brick_class: bpy.props.StringProperty(name="Brick Class")
    split_screen: bpy.props.BoolProperty(name="Split Screen", default=False, options={"HIDDEN"})

@@ -67,17 +69,22 @@ class ViewBrickItem(bpy.types.Operator, Operator):
    bl_idname = "bim.view_brick_item"
    bl_label = "View Brick Item"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Inspect this entity in the viewer"
    item: bpy.props.StringProperty(name="Brick Item")
    split_screen: bpy.props.BoolProperty(name="Split Screen", default=False, options={"HIDDEN"})

    def _execute(self, context):
-        core.view_brick_item(tool.Brick, item=self.item, split_screen=self.split_screen)
+        try:
+            core.view_brick_item(tool.Brick, item=self.item, split_screen=self.split_screen)
+        except:
+            self.report({'ERROR'}, f'Could not find {self.item}')


 class RewindBrickClass(bpy.types.Operator, Operator):
    bl_idname = "bim.rewind_brick_class"
    bl_label = "Rewind Brick Class"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Go back to the previous list view"
    split_screen: bpy.props.BoolProperty(name="Split Screen", default=False, options={"HIDDEN"})

    def _execute(self, context):
@@ -88,6 +95,7 @@ class CloseBrickProject(bpy.types.Operator, Operator):
    bl_idname = "bim.close_brick_project"
    bl_label = "Close Brick Project"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Close the Brick project"

    def _execute(self, context):
        core.close_brick_project(tool.Brick)
@@ -97,6 +105,7 @@ class ConvertBrickProject(bpy.types.Operator, Operator):
    bl_idname = "bim.convert_brick_project"
    bl_label = "Convert Brick Project"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Create an Ifc library for this Brick project"

    def _execute(self, context):
        core.convert_brick_project(tool.Ifc, tool.Brick)
@@ -106,9 +115,18 @@ class AssignBrickReference(bpy.types.Operator, Operator):
    bl_idname = "bim.assign_brick_reference"
    bl_label = "Assign Brick Reference"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Assign the selected Ifc entity to the selected Brick entity"

    def _execute(self, context):
+        if not context.active_object:
+            self.report({'ERROR'}, f'No Ifc selected')
+            return
        props = context.scene.BIMBrickProperties
+        try:
+            props.bricks[props.active_brick_index]
+        except:
+            self.report({'ERROR'}, f'No Brick selected')
+            return
        core.assign_brick_reference(
            tool.Ifc,
            tool.Brick,
@@ -122,19 +140,17 @@ class AddBrick(bpy.types.Operator, Operator):
    bl_idname = "bim.add_brick"
    bl_label = "Add Brick"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Create the Brick entity"

    def _execute(self, context):
        props = context.scene.BIMBrickProperties
-        library = None
-        if props.libraries:
-            library = tool.Ifc.get().by_id(int(props.libraries))
        core.add_brick(
            tool.Ifc,
            tool.Brick,
            element=tool.Ifc.get_entity(context.active_object) if context.selected_objects else None,
            namespace=props.namespace,
            brick_class=props.brick_entity_class,
-            library=library,
+            library=tool.Ifc.get().by_id(int(props.libraries)) if props.libraries else None,
            label=props.new_brick_label,
        )

@@ -143,6 +159,7 @@ class AddBrickRelation(bpy.types.Operator, Operator):
    bl_idname = "bim.add_brick_relation"
    bl_label = "Add Brick Relation"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Create the Brick relationship"

    def _execute(self, context):
        props = context.scene.BIMBrickProperties
@@ -152,7 +169,7 @@ class AddBrickRelation(bpy.types.Operator, Operator):
        elif props.split_screen_toggled:
            object = props.split_screen_bricks[props.split_screen_active_brick_index].uri
        else:
-            object = props.new_brick_relation_namespace + props.new_brick_relation_object
+            object = props.namespace + props.new_brick_relation_object
        core.add_brick_relation(
            tool.Brick,
            brick_uri=brick.uri,
@@ -165,6 +182,7 @@ class ConvertIfcToBrick(bpy.types.Operator, Operator):
    bl_idname = "bim.convert_ifc_to_brick"
    bl_label = "Convert IFC To Brick"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Convert Ifc entities and relations to Brick entities and relations"

    def _execute(self, context):
        props = context.scene.BIMBrickProperties
@@ -178,6 +196,7 @@ class NewBrickFile(bpy.types.Operator):
    bl_idname = "bim.new_brick_file"
    bl_label = "New Brick File"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Create a Brick project from scratch"

    def execute(self, context):
        IfcStore.begin_transaction(self)
@@ -210,16 +229,17 @@ class RefreshBrickViewer(bpy.types.Operator, Operator):
    bl_idname = "bim.refresh_brick_viewer"
    bl_label = "Refresh Brick Viewer"
    bl_options = {"REGISTER", "UNDO"}
-    split_screen: bpy.props.BoolProperty(name="Split Screen", default=False, options={"HIDDEN"})
+    bl_description = "Refresh the list view"

    def _execute(self, context):
-        core.refresh_brick_viewer(tool.Brick, split_screen=self.split_screen)
+        core.refresh_brick_viewer(tool.Brick)


 class RemoveBrick(bpy.types.Operator, Operator):
    bl_idname = "bim.remove_brick"
    bl_label = "Remove Brick"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Delete this entity"

    def _execute(self, context):
        props = context.scene.BIMBrickProperties
@@ -262,32 +282,20 @@ class SerializeBrick(bpy.types.Operator):
 class AddBrickNamespace(bpy.types.Operator, Operator):
    bl_idname = "bim.add_brick_namespace"
    bl_label = "Add Brick Namespace"
+    bl_description = "Bind a new namespace to the Brick project"

    def _execute(self, context):
        props = context.scene.BIMBrickProperties
        alias = props.new_brick_namespace_alias
        uri = props.new_brick_namespace_uri
-        core.add_namespace(tool.Brick, alias=alias, uri=uri)
-
-
-class SetBrickListRoot(bpy.types.Operator, Operator):
-    bl_idname = "bim.set_brick_list_root"
-    bl_label = "Set Brick View Type"
-    bl_options = {"REGISTER", "UNDO"}
-    split_screen: bpy.props.BoolProperty(name="Split Screen", default=False, options={"HIDDEN"})
-
-    def _execute(self, context):
-        if self.split_screen:
-            root = context.scene.BIMBrickProperties.split_screen_brick_list_root
-        else:
-            root = context.scene.BIMBrickProperties.brick_list_root
-        core.set_brick_list_root(tool.Brick, brick_root=root, split_screen=self.split_screen)
+        core.add_brick_namespace(tool.Brick, alias=alias, uri=uri)


 class RemoveBrickRelation(bpy.types.Operator, Operator):
    bl_idname = "bim.remove_brick_relation"
    bl_label = "Remove Relation"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Delete this relationship"
    predicate: bpy.props.StringProperty(name="Relation")
    object: bpy.props.StringProperty(name="Object")

@@ -30,6 +30,8 @@ from bpy.props import (
    FloatVectorProperty,
    CollectionProperty,
 )
+import blenderbim.core.brick as core
+import blenderbim.tool.brick as tool
 from blenderbim.tool.brick import BrickStore

 def update_active_brick_index(self, context):
@@ -43,12 +45,12 @@ def get_libraries(self, context):


 def get_namespaces(self, context):
-    return BrickStore.namespaces
+    return [(uri, f"{alias}: {uri}", "") for alias, uri in BrickStore.namespaces]


 def get_brick_entity_classes(self, context):
    entity = self.brick_entity_create_type
-    return BrickStore.entity_classes[entity]
+    return [(uri, uri.split("#")[-1], "") for uri in BrickStore.entity_classes[entity]]


 def get_brick_roots(self, context): 
@@ -56,13 +58,22 @@ def get_brick_roots(self, context):


 def get_brick_relations(self, context):
-    def is_label(relation):
-        return relation["predicate_name"] == "label"
-    if not list(filter(is_label, BrickschemaData.data["active_relations"])):
-        new_relations = BrickStore.relationships.copy()
-        new_relations.append(("http://www.w3.org/2000/01/rdf-schema#label", "label", ""))
-        return new_relations
-    return BrickStore.relationships
+    relations = [(uri, uri.split("#")[-1], "") for uri in BrickStore.relationships]
+    for relation in BrickschemaData.data["active_relations"]:
+        if relation["predicate_name"] == "label":
+            return relations
+    relations.append(("http://www.w3.org/2000/01/rdf-schema#label", "label", ""))
+    return relations
+    
+
+
+def update_view(self, context):
+    root = context.scene.BIMBrickProperties.brick_list_root
+    core.set_brick_list_root(tool.Brick, brick_root=root, split_screen=False)
+
+def split_screen_update_view(self, context):
+    root = context.scene.BIMBrickProperties.split_screen_brick_list_root
+    core.set_brick_list_root(tool.Brick, brick_root=root, split_screen=True)


 class Brick(PropertyGroup):
@@ -79,10 +90,9 @@ class BIMBrickProperties(PropertyGroup):
    active_brick_index: IntProperty(name="Active Brick Index", update=update_active_brick_index)
    libraries: EnumProperty(name="Libraries", items=get_libraries)
    set_list_root_toggled: BoolProperty(name="Set List Root Toggled", default=False)
-    brick_list_root: EnumProperty(name="Brick List Root", items=get_brick_roots)
+    brick_list_root: EnumProperty(name="Brick List Root", items=get_brick_roots, update=update_view)
    # namespace manager
    namespace: EnumProperty(name="Namespace", items=get_namespaces)
-    brick_settings_toggled: BoolProperty(name="Brick Settings Toggled", default=False)
    new_brick_namespace_alias: StringProperty(name="New Brick Namespace Alias")
    new_brick_namespace_uri: StringProperty(name="New Brick Namespace URI")
    # create brick entity
@@ -93,13 +103,12 @@ class BIMBrickProperties(PropertyGroup):
    brick_create_relations_toggled: BoolProperty(name="Brick Create Relations Toggled", default=False)
    brick_edit_relations_toggled: BoolProperty(name="Brick Edit Relations Toggled", default=False)
    new_brick_relation_type: EnumProperty(name="New Brick Relation Type", items=get_brick_relations)
-    new_brick_relation_namespace: EnumProperty(name="New Brick Relation Namespace", items=get_namespaces)
    new_brick_relation_object: StringProperty(name="New Brick Relation Object")
-    add_relation_failed: BoolProperty(name="Add Relation Failed", default=False)
+    add_brick_relation_failed: BoolProperty(name="Add Relation Failed", default=False)
    # create relations split screen
    split_screen_toggled: BoolProperty(name="Split Screen Toggled", default=False)
    split_screen_bricks: CollectionProperty(name="Split Screen Bricks", type=Brick)
    split_screen_active_brick_index: IntProperty(name="Split Screen Active Brick Index", update=update_active_brick_index)
    split_screen_active_brick_class: StringProperty(name="Split Screen Active Brick Class")
    split_screen_brick_breadcrumbs: CollectionProperty(name="Split Screen Brick Breadcrumbs", type=StrProperty)
-    split_screen_brick_list_root: EnumProperty(name="Split Screen Brick List Root", items=get_brick_roots)
+    split_screen_brick_list_root: EnumProperty(name="Split Screen Brick List Root", items=get_brick_roots, update=split_screen_update_view)
@@ -34,17 +34,36 @@ class BIM_PT_brickschema(Panel):
    def draw(self, context):
        if not BrickschemaData.is_loaded:
            BrickschemaData.load()
-        self.props = context.scene.BIMBrickProperties

+
+class BIM_PT_brickschema_project_info(Panel):
+    bl_label = "Project Info"
+    bl_idname = "BIM_PT_brickschema_project_info"
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+    bl_parent_id = "BIM_PT_brickschema"
+
+    def draw(self, context):
+        self.props = context.scene.BIMBrickProperties
+        
        if not BrickschemaData.data["is_loaded"]:
            row = self.layout.row(align=True)
            row.operator("bim.new_brick_file", text="Create Project")
            row.operator("bim.load_brick_project", text="Load Project")
            return

+        row = self.layout.row(align=True)
        if BrickStore.path:
-            row = self.layout.row(align=True)
            row.label(text=BrickStore.path, icon="FILEBROWSER")
+        else:
+            row.label(text="No file", icon="FILEBROWSER")
+        
+        row = self.layout.row(align=True)
+        if BrickStore.last_saved:
+            row.label(text=BrickStore.last_saved, icon="TIME")
+        else:
+            row.label(text="Not saved", icon="TIME")

        row = self.layout.row(align=True)
        op = row.operator("bim.serialize_brick", icon="EXPORT", text="Save")
@@ -53,134 +72,173 @@ class BIM_PT_brickschema(Panel):
        op.should_save_as = True
        row.operator("bim.close_brick_project", text="", icon="CANCEL")

-        row = self.layout.row(align=True)
-        row.prop(data=self.props, property="brick_settings_toggled", text="", icon="PREFERENCES")
-        
-        if self.props.brick_settings_toggled:
-            box = self.layout.box()
-            row = box.row(align=True)
-            row.label(text="Active Namespace:")

-            row = box.row(align=True)
-            prop_with_search(row, self.props, "namespace", text="")
+class BIM_PT_brickschema_namespaces(Panel):
+    bl_label = "Namespaces"
+    bl_idname = "BIM_PT_brickschema_namespaces"
+    bl_options = {"DEFAULT_CLOSED"}
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+    bl_parent_id = "BIM_PT_brickschema"

-            row = box.row(align=True)
-            row.label(text="Bind New Namespace:")
+    @classmethod
+    def poll(cls, context):
+        return BrickStore.graph != None

-            row = box.row(align=True)
-            row.prop(data=self.props, property="new_brick_namespace_alias", text="")
-            col = row.column()
-            col.alignment = "CENTER"
-            col.scale_x = 1.1
-            col.label(text=":")
-            row.prop(data=self.props, property="new_brick_namespace_uri", text="")
-            row.operator("bim.add_brick_namespace", text="", icon="ADD")
+    def draw(self, context):
+        self.props = context.scene.BIMBrickProperties

        row = self.layout.row(align=True)
-        row.label(text="Create Entity:")
+        row.label(text="Active Namespace:")

        row = self.layout.row(align=True)
-        row.prop(data=self.props, property="brick_entity_create_type", text="")
+        prop_with_search(row, self.props, "namespace", text="")

        row = self.layout.row(align=True)
-        row.prop(data=self.props, property="new_brick_label", text="")
-        prop_with_search(row, self.props, "brick_entity_class", text="")
-        row.operator("bim.add_brick", text="", icon="ADD")
-        # row.operator("bim.refresh_brick_viewer", text="", icon="FILE_REFRESH")
+        row.label(text="Bind New Namespace:")

        row = self.layout.row(align=True)
+        row.prop(data=self.props, property="new_brick_namespace_alias", text="")
        col = row.column()
-        col.alignment = "RIGHT"
+        col.alignment = "CENTER"
+        col.scale_x = 1.1
+        col.label(text=":")
+        row.prop(data=self.props, property="new_brick_namespace_uri", text="")
+        row.operator("bim.add_brick_namespace", text="", icon="ADD")
+
+
+class BIM_PT_brickschema_create_entity(Panel):
+    bl_label = "Create Entity"
+    bl_idname = "BIM_PT_brickschema_create_entity"
+    bl_options = {"DEFAULT_CLOSED"}
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+    bl_parent_id = "BIM_PT_brickschema"
+
+    @classmethod
+    def poll(cls, context):
+        return BrickStore.graph != None
+
+    def draw(self, context):
+        self.props = context.scene.BIMBrickProperties
+        # TO DO: hide this if selected entity already has a reference, or something similar
+
+        row = self.layout.row(align=True)
+        row.prop(data=self.props, property="brick_entity_create_type", text="Class")
+
+        row = self.layout.row(align=True)
+        prop_with_search(row, self.props, "brick_entity_class", text="Type")
+        
+        row = self.layout.row(align=True)
+        active = tool.Ifc.get_entity(context.active_object)
+        if active and context.selected_objects:
+            row.label(text="Label:")
+            row.label(text=active.Name if active.Name else "Unnamed")
+        else:
+            row.prop(data=self.props, property="new_brick_label", text="Label")
+
+        row = self.layout.row(align=True)
+        row.operator("bim.add_brick", text="Create Entity")
+     
+
+class BIM_PT_brickschema_viewport(Panel):
+    bl_label = "Viewport"
+    bl_idname = "BIM_PT_brickschema_viewport"
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+    bl_parent_id = "BIM_PT_brickschema"
+
+    @classmethod
+    def poll(cls, context):
+        return BrickStore.graph != None
+
+    def draw(self, context):
+        self.props = context.scene.BIMBrickProperties
+
+        row = self.layout.row(align=True)
+        row.column().alignment = "RIGHT"
+        row.prop(data=self.props, property="set_list_root_toggled", text="", icon="OUTLINER")
        row.prop(data=self.props, property="split_screen_toggled", text="", icon="WINDOW")
+        row.operator("bim.refresh_brick_viewer", text="", icon="FILE_REFRESH")

        grid = self.layout.grid_flow(even_columns=True)
-        grid1 = grid.column(align=True)
-        row = grid1.row(align=True)
+        grid_left = grid.column(align=True)
+        row = grid_left.row(align=True)
        if len(self.props.brick_breadcrumbs):
            op = row.operator("bim.rewind_brick_class", text="", icon="FRAME_PREV")
            op.split_screen = False
-        row.prop(data=self.props, property="set_list_root_toggled", text="", icon="OUTLINER")
        row.label(text=self.props.active_brick_class)

        if self.props.set_list_root_toggled:
-            row = grid1.row(align=True)
-            op = row.operator("bim.set_brick_list_root", text="Set View")
-            op.split_screen = False
+            row = grid_left.row(align=True)
            row.prop(data=self.props, property="brick_list_root", text="")

-        row = grid1.row()
+        row = grid_left.row()
        BIM_UL_bricks.split_screen = False
        row.template_list("BIM_UL_bricks", "", self.props, "bricks", self.props, "active_brick_index")

        if self.props.split_screen_toggled:
-            grid2 = grid.column(align=True)
-            row = grid2.row(align=True)
+            grid_right = grid.column(align=True)
+            row = grid_right.row(align=True)
            if len(self.props.split_screen_brick_breadcrumbs):
                op = row.operator("bim.rewind_brick_class", text="", icon="FRAME_PREV")
                op.split_screen = True
            row.label(text=self.props.split_screen_active_brick_class)

            if self.props.set_list_root_toggled:
-                row = grid2.row(align=True)
-                op = row.operator("bim.set_brick_list_root", text="Set View")
-                op.split_screen = True
+                row = grid_right.row(align=True)
                row.prop(data=self.props, property="split_screen_brick_list_root", text="")

-            row = grid2.row()
+            row = grid_right.row()
            BIM_UL_bricks.split_screen = True
            row.template_list("BIM_UL_bricks", "", self.props, "split_screen_bricks", self.props, "split_screen_active_brick_index")

        if BrickschemaData.data["active_relations"]:
            row = self.layout.row(align=True)
-            col = row.column()
-            col.alignment = "RIGHT"
+            row.column().alignment = "RIGHT"
            row.prop(data=self.props, property="brick_create_relations_toggled", text="", icon="PLUGIN")
            row.prop(data=self.props, property="brick_edit_relations_toggled", text="", icon="TOOL_SETTINGS")
            row.operator("bim.remove_brick", text="", icon="X")

-            row = self.layout.row(align=True)
-            row.label(text="Create Relation:")
-
-            if self.props.brick_create_relations_toggled and self.props.new_brick_relation_type == "http://www.w3.org/2000/01/rdf-schema#label":
+            if self.props.brick_create_relations_toggled and self.props.split_screen_toggled:
                row = self.layout.row(align=True)
-                prop_with_search(row, self.props, "new_brick_relation_type", text="")
-                row.prop(data=self.props, property="new_brick_relation_object", text="")
-                row.operator("bim.add_brick_relation", text="", icon="ADD")
-
-            elif self.props.brick_create_relations_toggled and self.props.split_screen_toggled:
-                row = self.layout.row(align=True)
-                split_screen_selection = self.props.split_screen_bricks[self.props.split_screen_active_brick_index]
-                if split_screen_selection.total_items:
+                try:
+                    split_screen_selection = self.props.split_screen_bricks[self.props.split_screen_active_brick_index]
+                except:
+                    split_screen_selection = None
+                if not split_screen_selection or split_screen_selection.total_items:
                    row.label(text="No selection", icon="INFO")
                else:
                    prop_with_search(row, self.props, "new_brick_relation_type", text="")
                    row.label(text=split_screen_selection.label if split_screen_selection.label else split_screen_selection.name)
                    row.operator("bim.add_brick_relation", text="", icon="ADD")

-            elif self.props.brick_create_relations_toggled: 
-                row = self.layout.row(align=True)
-                prop_with_search(row, self.props, "new_brick_relation_namespace", text="")
-
+            elif self.props.brick_create_relations_toggled:
                row = self.layout.row(align=True)
                prop_with_search(row, self.props, "new_brick_relation_type", text="")
                row.prop(data=self.props, property="new_brick_relation_object", text="")
                row.operator("bim.add_brick_relation", text="", icon="ADD")
-            

-            if self.props.brick_create_relations_toggled and self.props.add_relation_failed:
+            if self.props.brick_create_relations_toggled and self.props.add_brick_relation_failed:
                row = self.layout.row(align=True)
                row.label(text="Failed to find this entity!", icon="ERROR")
-                

        for relation in BrickschemaData.data["active_relations"]:
-            row = self.layout.row(align=True)
+            split = self.layout.split(factor=0.85, align=True)
+            row = split.row(align=True)
            row.label(text=relation["predicate_name"])
+            row.separator()
            row.label(text=relation["object_name"])
-            if self.props.brick_edit_relations_toggled and relation["predicate_name"] != "type":
+            row = split.row(align=True)
+            row.column().alignment = "RIGHT"
+            if self.props.brick_edit_relations_toggled and relation["predicate_uri"] and relation["predicate_name"] != "type":
                op = row.operator("bim.remove_brick_relation", text="", icon="UNLINKED")
-                op.predicate = relation["predicate"]
-                op.object = relation["object"]
-            if relation["is_uri"] and relation["predicate_name"] != "type":
+                op.predicate = relation["predicate_uri"]
+                op.object = relation["object_uri"]
+            if relation["is_uri"] and relation["object_uri"].toPython().split("#")[-1] != self.props.active_brick_class:
                op = row.operator("bim.view_brick_item", text="", icon="DISCLOSURE_TRI_RIGHT")
                op.item = relation["object_uri"]
            if relation["is_globalid"]:
@@ -188,6 +246,23 @@ class BIM_PT_brickschema(Panel):
                op.global_id = relation["object_name"]


+class BIM_UL_bricks(UIList):
+    split_screen = False
+
+    def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
+        if item:
+            split = layout.split(factor=0.85, align=True)
+            row = split.row()
+            label = item.label if item.label else item.name
+            if item.total_items:
+                op = row.operator("bim.view_brick_class", text="", icon="DISCLOSURE_TRI_RIGHT", emboss=False)
+                op.brick_class = item.name
+                op.split_screen = self.split_screen
+            row.label(text=label)
+            if item.total_items:
+                row = split.row()
+                row.label(text=str(item.total_items))
+
 class BIM_PT_ifc_brickschema_references(Panel):
    bl_label = "Brickschema References"
    bl_idname = "BIM_PT_ifc_brickschema_references"
@@ -211,15 +286,24 @@ class BIM_PT_ifc_brickschema_references(Panel):
            row.label(text="No Brickschema Project Loaded")
            return

-        if not BrickschemaReferencesData.data["libraries"]:
+        if not BrickschemaReferencesData.data["libraries"] and BrickStore.path:
            row = self.layout.row(align=True)
            row.label(text="No IFC Libraries")
            row.operator("bim.convert_brick_project", text="", icon="ADD")
            return
+        
+        elif not BrickschemaReferencesData.data["libraries"]:
+            row = self.layout.row(align=True)
+            row.label(text="No IFC Libraries: save the Brick project to create a new library", icon="ERROR")
+
+            row = self.layout.row(align=True)
+            row.label(text="Libraries must have location pointing to a \".ttl\" file", icon="INFO")
+            return

        row = self.layout.row(align=True)
        prop_with_search(row, self.props, "libraries")
-        row.operator("bim.convert_brick_project", text="", icon="ADD")
+        if BrickStore.path:
+            row.operator("bim.convert_brick_project", text="", icon="ADD")

        row = self.layout.row(align=True)
        row.operator("bim.assign_brick_reference", icon="ADD")
@@ -234,19 +318,4 @@ class BIM_PT_ifc_brickschema_references(Panel):
            row.label(text=reference["identification"], icon="ASSET_MANAGER")
            row.label(text=reference["name"])
            row.operator("bim.unassign_library_reference", text="", icon="X").reference = reference["id"]
-            row.operator("bim.view_brick_item", text="", icon="DISCLOSURE_TRI_RIGHT").item = reference["identification"]
-
-
-class BIM_UL_bricks(UIList):
-    split_screen = False
-
-    def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
-        if item:
-            row = layout.row(align=True)
-            label = item.label if item.label else item.name
-            if item.total_items:
-                op = row.operator("bim.view_brick_class", text="", icon="DISCLOSURE_TRI_RIGHT", emboss=False)
-                op.brick_class = item.name
-                op.split_screen = self.split_screen
-                label = label + " (" + str(item.total_items) + ")" 
-            row.label(text=label)
+            row.operator("bim.view_brick_item", text="", icon="DISCLOSURE_TRI_RIGHT").item = reference["identification"]
@@ -0,0 +1,42 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import bpy
+from . import ui, prop, operator
+
+classes = (
+    operator.GetBSDDClassificationProperties,
+    operator.LoadBSDDDomains,
+    operator.SearchBSDDClassifications,
+    operator.SetActiveBSDDDomain,
+    prop.BSDDDomain,
+    prop.BSDDClassification,
+    prop.BSDDPset,
+    prop.BIMBSDDProperties,
+    ui.BIM_UL_bsdd_domains,
+    ui.BIM_UL_bsdd_classifications,
+    ui.BIM_PT_bsdd,
+)
+
+
+def register():
+    bpy.types.Scene.BIMBSDDProperties = bpy.props.PointerProperty(type=prop.BIMBSDDProperties)
+
+
+def unregister():
+    del bpy.types.Scene.BIMBSDDProperties
@@ -0,0 +1,132 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import bpy
+import bsdd
+import json
+import ifcopenshell
+import blenderbim.tool as tool
+
+
+class LoadBSDDDomains(bpy.types.Operator):
+    bl_idname = "bim.load_bsdd_domains"
+    bl_label = "Load bSDD Domains"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        props = context.scene.BIMBSDDProperties
+        props.domains.clear()
+        client = bsdd.Client()
+        for domain in sorted(client.Domain(), key=lambda x: x["name"]):
+            new = props.domains.add()
+            new.name = domain["name"]
+            new.namespace_uri = domain["namespaceUri"]
+            new.default_language_code = domain["defaultLanguageCode"]
+            new.organization_name_owner = domain["organizationNameOwner"]
+            new.status = domain["status"]
+            new.version = domain["version"]
+        return {"FINISHED"}
+
+
+class SetActiveBSDDDomain(bpy.types.Operator):
+    bl_idname = "bim.set_active_bsdd_domain"
+    bl_label = "Load bSDD Domains"
+    bl_options = {"REGISTER", "UNDO"}
+    name: bpy.props.StringProperty()
+    uri: bpy.props.StringProperty()
+
+    def execute(self, context):
+        props = context.scene.BIMBSDDProperties
+        props.active_domain = self.name
+        props.active_uri = self.uri
+        return {"FINISHED"}
+
+
+class SearchBSDDClassifications(bpy.types.Operator):
+    bl_idname = "bim.search_bsdd_classifications"
+    bl_label = "Search bSDD Classifications"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        props = context.scene.BIMBSDDProperties
+        props.classifications.clear()
+        client = bsdd.Client()
+        related_ifc_entities = []
+        if len(props.keyword) < 3:
+            return {"FINISHED"}
+        if props.should_filter_ifc_class and context.active_object:
+            element = tool.Ifc.get_entity(context.active_object)
+            if element:
+                related_ifc_entities = [element.is_a()]
+        results = client.ClassificationSearchOpen(props.keyword, DomainNamespaceUris=[props.active_uri], RelatedIfcEntities=related_ifc_entities)
+        for result in sorted(results["classifications"], key=lambda x: x["referenceCode"]):
+            new = props.classifications.add()
+            new.name = result["name"]
+            new.reference_code = result["referenceCode"]
+            new.description = result.get("description", "")
+            new.namespace_uri = result["namespaceUri"]
+            new.domain_name = result["domainName"]
+            new.domain_namespace_uri = result["domainNamespaceUri"]
+        return {"FINISHED"}
+
+
+class GetBSDDClassificationProperties(bpy.types.Operator):
+    bl_idname = "bim.get_bsdd_classification_properties"
+    bl_label = "Search bSDD Classifications"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        bprops = context.scene.BIMBSDDProperties
+        bprops.classification_psets.clear()
+        bsdd_classification = bprops.classifications[bprops.active_classification_index]
+        client = bsdd.Client()
+        data = client.Classification(bsdd_classification.namespace_uri)
+
+        properties = data.get("classificationProperties", None)
+        if not properties:
+            return {"FINISHED"}
+
+        psets = {}
+
+        for prop in properties:
+            if prop.get("propertyDomainName") != "IFC":
+                continue
+            pset = prop.get("propertySet", None)
+            if not pset:
+                continue
+            psets.setdefault(pset, {})
+
+            predefined_value = prop.get("predefinedValue")
+            if predefined_value:
+                possible_values = [predefined_value]
+            else:
+                possible_values = prop.get("possibleValues", []) or []
+                possible_values = [v["value"] for v in possible_values]
+
+            psets[pset][prop["name"]] = possible_values
+
+        for pset_name, pset in psets.items():
+            new = bprops.classification_psets.add()
+            new.name = pset_name
+            for name, values in pset.items():
+                new2 = new.properties.add()
+                new2.name = name
+                new2.enum_items = json.dumps(values)
+                new2.data_type = "enum"
+        return {"FINISHED"}
@@ -0,0 +1,66 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import bpy
+from bpy.types import PropertyGroup
+from blenderbim.bim.prop import Attribute, StrProperty
+from bpy.props import (
+    PointerProperty,
+    StringProperty,
+    EnumProperty,
+    BoolProperty,
+    IntProperty,
+    FloatProperty,
+    FloatVectorProperty,
+    CollectionProperty,
+)
+
+
+class BSDDDomain(PropertyGroup):
+    name: StringProperty(name="Name")
+    namespace_uri: StringProperty(name="URI")
+    default_language_code: StringProperty(name="Language")
+    organization_name_owner: StringProperty(name="Organization")
+    status: StringProperty(name="Status")
+    version: StringProperty(name="Version")
+
+
+class BSDDClassification(PropertyGroup):
+    name: StringProperty(name="Name")
+    reference_code: StringProperty(name="Reference Code")
+    description: StringProperty(name="Description")
+    namespace_uri: StringProperty(name="Namespace URI")
+    domain_name: StringProperty(name="Domain Name")
+    domain_namespace_uri: StringProperty(name="Domain Namespace URI")
+
+
+class BSDDPset(PropertyGroup):
+    name: StringProperty(name="Name")
+    properties: CollectionProperty(name="Properties", type=Attribute)
+
+
+class BIMBSDDProperties(PropertyGroup):
+    active_domain: StringProperty(name="Active Domain")
+    active_uri: StringProperty(name="Active URI")
+    domains: CollectionProperty(name="Domains", type=BSDDDomain)
+    active_domain_index: IntProperty(name="Active Domain Index")
+    classifications: CollectionProperty(name="Classifications", type=BSDDClassification)
+    active_classification_index: IntProperty(name="Active Classification Index")
+    keyword: StringProperty(name="Keyword")
+    should_filter_ifc_class: BoolProperty(name="Filter Active IFC Class", default=True)
+    classification_psets: CollectionProperty(name="Classification Psets", type=BSDDPset)
@@ -0,0 +1,71 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import blenderbim.tool as tool
+from bpy.types import Panel, UIList
+from blenderbim.bim.ifc import IfcStore
+
+
+class BIM_PT_bsdd(Panel):
+    bl_label = "buildingSMART Data Dictionary"
+    bl_idname = "BIM_PT_bsdd"
+    bl_options = {"DEFAULT_CLOSED"}
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+    bl_parent_id = "BIM_PT_tab_project_setup"
+
+    def draw(self, context):
+        props = context.scene.BIMBSDDProperties
+        if props.active_domain:
+            row = self.layout.row()
+            row.label(text="Active: " + props.active_domain, icon="URL")
+        else:
+            row = self.layout.row()
+            row.label(text="No Active bSDD Domain", icon="ERROR")
+
+        if len(props.domains):
+            self.layout.template_list(
+                "BIM_UL_bsdd_domains",
+                "",
+                props,
+                "domains",
+                props,
+                "active_domain_index",
+            )
+        else:
+            row = self.layout.row()
+            row.operator("bim.load_bsdd_domains")
+
+
+class BIM_UL_bsdd_domains(UIList):
+    def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
+        if item:
+            row = layout.row(align=True)
+            row.label(text=f"{item.name} ({item.organization_name_owner})")
+            op = row.operator("bim.set_active_bsdd_domain", text="", icon="RESTRICT_SELECT_OFF")
+            op.name = item.name
+            op.uri = item.namespace_uri
+
+
+class BIM_UL_bsdd_classifications(UIList):
+    def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
+        if item:
+            row = layout.row(align=True)
+            row.label(text=item.reference_code)
+            row.label(text=item.name)
@@ -336,8 +336,15 @@ class SelectIfcClashResults(bpy.types.Operator):
            else:
                element_file = self.file

-            element = element_file.by_id(obj.BIMObjectProperties.ifc_definition_id)
-            if element.GlobalId in global_ids:
+            try:
+                element = element_file.by_id(obj.BIMObjectProperties.ifc_definition_id)
+            except:
+                continue
+
+            global_id = getattr(element, "GlobalId", None)
+            if not global_id:
+                continue
+            if global_id in global_ids:
                obj.select_set(True)
        return {"FINISHED"}

@@ -27,7 +27,7 @@ class BIM_PT_ifcclash(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_tab_quality_control"
+    bl_parent_id = "BIM_PT_tab_clash_detection"

    def draw(self, context):
        layout = self.layout
@@ -102,9 +102,10 @@ class BIM_PT_clash_manager(Panel):
    bl_idname = "BIM_PT_clash_manager"
    bl_label = "Clash Manager"
    bl_options = {"DEFAULT_CLOSED"}
-    bl_space_type = "VIEW_3D"
-    bl_region_type = "UI"
-    bl_category = "BlenderBIM"
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+    bl_parent_id = "BIM_PT_tab_clash_detection"

    def draw(self, context):
        layout = self.layout
@@ -21,7 +21,9 @@ from . import ui, prop, operator

 classes = (
    operator.AddClassification,
+    operator.AddClassificationFromBSDD,
    operator.AddClassificationReference,
+    operator.AddClassificationReferenceFromBSDD,
    operator.ChangeClassificationLevel,
    operator.DisableEditingClassification,
    operator.DisableEditingClassificationReference,
@@ -54,6 +54,25 @@ class AddClassification(bpy.types.Operator, tool.Ifc.Operator):
        )


+class AddClassificationFromBSDD(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.add_classification_from_bsdd"
+    bl_label = "Add Classification From bSDD"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def _execute(self, context):
+        props = context.scene.BIMBSDDProperties
+        domain = [d for d in props.domains if d.name == props.active_domain][0]
+        for element in tool.Ifc.get().by_type("IfcClassification"):
+            if element.Name == props.active_domain or element.Location == domain.namespace_uri:
+                return
+        classification = ifcopenshell.api.run(
+            "classification.add_classification", tool.Ifc.get(), classification=props.active_domain
+        )
+        classification.Source = domain.organization_name_owner
+        classification.Location = domain.namespace_uri
+        classification.Edition = domain.version
+
+
 class EnableEditingClassification(bpy.types.Operator):
    bl_idname = "bim.enable_editing_classification"
    bl_label = "Enable Editing Classification"
@@ -254,6 +273,70 @@ class AddClassificationReference(bpy.types.Operator, tool.Ifc.Operator):
            )


+class AddClassificationReferenceFromBSDD(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.add_classification_reference_from_bsdd"
+    bl_label = "Add Classification Reference From bSDD"
+    bl_options = {"REGISTER", "UNDO"}
+    obj: bpy.props.StringProperty()
+    obj_type: bpy.props.StringProperty()
+
+    def _execute(self, context):
+        if self.obj_type == "Object":
+            if context.selected_objects:
+                objects = [o.name for o in context.selected_objects]
+            else:
+                objects = [context.active_object.name]
+        else:
+            objects = [self.obj]
+        props = context.scene.BIMClassificationProperties
+        bprops = context.scene.BIMBSDDProperties
+
+        bsdd_classification = bprops.classifications[bprops.active_classification_index]
+
+        classification = None
+        for element in tool.Ifc.get().by_type("IfcClassification"):
+            if (
+                element.Name == bsdd_classification.domain_name
+                or element.Location == bsdd_classification.domain_namespace_uri
+            ):
+                classification = element
+                break
+
+        if not classification:
+            classification = ifcopenshell.api.run(
+                "classification.add_classification", tool.Ifc.get(), classification=bsdd_classification.domain_name
+            )
+            classification.Location = bsdd_classification.domain_namespace_uri
+
+        for obj in objects:
+            ifc_definition_id = blenderbim.bim.helper.get_obj_ifc_definition_id(context, obj, self.obj_type)
+            if not ifc_definition_id:
+                continue
+            element = tool.Ifc.get().by_id(ifc_definition_id)
+            reference = ifcopenshell.api.run(
+                "classification.add_reference",
+                tool.Ifc.get(),
+                product=element,
+                classification=classification,
+                identification=bsdd_classification.reference_code,
+                name=bsdd_classification.name,
+            )
+            reference.Location = bsdd_classification.namespace_uri
+
+            for classification_pset in bprops.classification_psets:
+                pset = ifcopenshell.util.element.get_pset(element, classification_pset.name)
+                if pset:
+                    pset = tool.Ifc.get().by_id(pset["id"])
+                else:
+                    pset = ifcopenshell.api.run(
+                        "pset.add_pset", tool.Ifc.get(), product=element, name=classification_pset.name
+                    )
+                properties = {}
+                for prop in classification_pset.properties:
+                    properties[prop.name] = prop.get_value()
+                ifcopenshell.api.run("pset.edit_pset", tool.Ifc.get(), pset=pset, properties=properties)
+
+
 class ChangeClassificationLevel(bpy.types.Operator):
    bl_idname = "bim.change_classification_level"
    bl_label = "Change Classification Level"
@@ -48,6 +48,15 @@ class ClassificationReference(PropertyGroup):


 class BIMClassificationProperties(PropertyGroup):
+    classification_source: EnumProperty(
+        items=[
+            ("FILE", "IFC File", ""),
+            ("BSDD", "buildingSMART Data Dictionary", ""),
+            ("MANUAL", "Manual Entry", ""),
+        ],
+        name="Classification Source",
+        default="FILE",
+    )
    available_classifications: EnumProperty(items=get_available_classifications, name="Available Classifications")
    classification_attributes: CollectionProperty(name="Classification Attributes", type=Attribute)
    active_classification_id: IntProperty(name="Active Classification Id")
@@ -36,7 +36,7 @@ class BIM_PT_classifications(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_project_setup"
+    bl_parent_id = "BIM_PT_tab_project_setup"

    @classmethod
    def poll(cls, context):
@@ -48,6 +48,42 @@ class BIM_PT_classifications(Panel):

        self.props = context.scene.BIMClassificationProperties

+        row = self.layout.row(align=True)
+        row.label(text="Source", icon="OUTLINER")
+        row.prop(self.props, "classification_source", text="")
+
+        if self.props.classification_source == "FILE":
+            self.draw_add_file_ui(context)
+        elif self.props.classification_source == "BSDD":
+            self.draw_add_bsdd_ui(context)
+        elif self.props.classification_source == "MANUAL":
+            self.draw_add_manual_ui(context)
+
+        for classification in ClassificationsData.data["classifications"]:
+            if self.props.active_classification_id == classification["id"]:
+                self.draw_editable_ui()
+            else:
+                self.draw_ui(classification)
+
+    def draw_add_manual_ui(self, context):
+        row = self.layout.row()
+        row.label(text="TODO", icon="ERROR")
+
+    def draw_add_bsdd_ui(self, context):
+        self.bprops = context.scene.BIMBSDDProperties
+
+        if not self.bprops.active_domain:
+            row = self.layout.row()
+            row.label(text="No Active bSDD Domain", icon="ERROR")
+            return
+
+        row = self.layout.row()
+        row.label(text="Active: " + self.bprops.active_domain, icon="URL")
+
+        row = self.layout.row()
+        row.operator("bim.add_classification_from_bsdd", icon="ADD")
+
+    def draw_add_file_ui(self, context):
        if ClassificationsData.data["has_classification_file"]:
            row = self.layout.row(align=True)
            row.prop(self.props, "available_classifications", text="")
@@ -58,12 +94,6 @@ class BIM_PT_classifications(Panel):
            row.label(text="No Active Classification Library")
            row.operator("bim.load_classification_library", text="", icon="IMPORT")

-        for classification in ClassificationsData.data["classifications"]:
-            if self.props.active_classification_id == classification["id"]:
-                self.draw_editable_ui()
-            else:
-                self.draw_ui(classification)
-
    def draw_editable_ui(self):
        row = self.layout.row(align=True)
        row.operator("bim.edit_classification", text="Save changes", icon="CHECKMARK")
@@ -84,6 +114,7 @@ class ReferenceUI:
        obj = context.active_object
        self.oprops = obj.BIMObjectProperties
        self.sprops = context.scene.BIMClassificationProperties
+        self.bprops = context.scene.BIMBSDDProperties
        self.props = obj.BIMClassificationReferenceProperties
        self.file = IfcStore.get_file()

@@ -100,14 +131,76 @@ class ReferenceUI:
                self.draw_reference_ui(reference)

    def draw_add_ui(self, context):
+        row = self.layout.row(align=True)
+        row.label(text="Source", icon="OUTLINER")
+        row.prop(self.sprops, "classification_source", text="")
+
+        if self.sprops.classification_source == "FILE":
+            self.draw_add_file_ui(context)
+        elif self.sprops.classification_source == "BSDD":
+            self.draw_add_bsdd_ui(context)
+        elif self.sprops.classification_source == "MANUAL":
+            self.draw_add_manual_ui(context)
+
+    def draw_add_manual_ui(self, context):
+        row = self.layout.row()
+        row.label(text="TODO", icon="ERROR")
+
+    def draw_add_bsdd_ui(self, context):
+        if not self.bprops.active_domain:
+            row = self.layout.row()
+            row.label(text="No Active bSDD Domain", icon="ERROR")
+            return
+
+        row = self.layout.row()
+        row.label(text="Active: " + self.bprops.active_domain, icon="URL")
+
+        row = self.layout.row(align=True)
+        row.prop(self.bprops, "keyword", text="")
+        row.operator("bim.search_bsdd_classifications", text="", icon="VIEWZOOM")
+
+        row = self.layout.row()
+        row.prop(self.bprops, "should_filter_ifc_class")
+
+        if len(self.bprops.classifications):
+            self.layout.template_list(
+                "BIM_UL_bsdd_classifications",
+                "",
+                self.bprops,
+                "classifications",
+                self.bprops,
+                "active_classification_index",
+            )
+        else:
+            row = self.layout.row()
+            row.label(text="No Search Results")
+
+        if self.bprops.active_classification_index < len(self.bprops.classifications):
+            row = self.layout.row(align=True)
+            op = row.operator(
+                "bim.add_classification_reference_from_bsdd", text="Add Classification Reference", icon="ADD"
+            )
+            op.obj = self.obj
+            op.obj_type = self.obj_type
+            row.operator("bim.get_bsdd_classification_properties", text="", icon="COPY_ID")
+
+            if len(self.bprops.classification_psets):
+                for pset in self.bprops.classification_psets:
+                    box = self.layout.box()
+                    row = box.row()
+                    row.label(text=pset.name, icon="COPY_ID")
+                    blenderbim.bim.helper.draw_attributes(pset.properties, box)
+
+    def draw_add_file_ui(self, context):
        if not self.data.data["active_classification_library"]:
            row = self.layout.row(align=True)
-            row.label(text="No Active Classification Library")
+            row.label(text="No Active Classification Library", icon="ERROR")
            row.operator("bim.load_classification_library", text="", icon="IMPORT")
            return
+
        row = self.layout.row(align=True)
        row.label(text=f"Active Classification Library: {self.data.data['active_classification_library']}")
-        #row.prop(self.sprops, "available_classifications", text="")
+        # row.prop(self.sprops, "available_classifications", text="")
        if not self.sprops.available_library_references:
            op = row.operator("bim.change_classification_level", text="", icon="GREASEPENCIL")
            op.parent_id = int(self.sprops.available_classifications)
@@ -1,124 +0,0 @@
-# BlenderBIM Add-on - OpenBIM Blender Add-on
-# Copyright (C) 2020, 2021 Dion Moult <dion@thinkmoult.com>
-#
-# This file is part of BlenderBIM Add-on.
-#
-# BlenderBIM Add-on is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# BlenderBIM Add-on is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
-
-import bpy
-import os
-import logging
-import ifcopenshell
-import json
-import webbrowser
-import tempfile
-from blenderbim.bim.ifc import IfcStore
-
-
-class SelectCobieIfcFile(bpy.types.Operator):
-    bl_idname = "bim.select_cobie_ifc_file"
-    bl_label = "Select COBie IFC File"
-    bl_options = {"REGISTER", "UNDO"}
-    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
-
-    def execute(self, context):
-        context.scene.COBieProperties.cobie_ifc_file = self.filepath
-        return {"FINISHED"}
-
-    def invoke(self, context, event):
-        context.window_manager.fileselect_add(self)
-        return {"RUNNING_MODAL"}
-
-
-class SelectCobieJsonFile(bpy.types.Operator):
-    bl_idname = "bim.select_cobie_json_file"
-    bl_label = "Select COBie JSON File"
-    bl_options = {"REGISTER", "UNDO"}
-    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
-
-    def execute(self, context):
-        context.scene.COBieProperties.cobie_json_file = self.filepath
-        return {"FINISHED"}
-
-    def invoke(self, context, event):
-        context.window_manager.fileselect_add(self)
-        return {"RUNNING_MODAL"}
-
-
-class ExecuteIfcCobie(bpy.types.Operator):
-    bl_idname = "bim.execute_ifc_cobie"
-    bl_label = "Execute IFCCOBie"
-    file_format: bpy.props.StringProperty()
-
-    @classmethod
-    def poll(cls, context):
-        props = context.scene.COBieProperties
-        return props.should_load_from_memory or props.cobie_ifc_file
-
-    def execute(self, context):
-        from cobie import IfcCobieParser
-
-        props = context.scene.COBieProperties
-
-        if props.should_load_from_memory:
-            output_dir = tempfile.gettempdir()
-        else:
-            output_dir = os.path.dirname(props.cobie_ifc_file)
-
-        output = os.path.join(output_dir, "output")
-        logger = logging.getLogger("IFCtoCOBie")
-        fh = logging.FileHandler(os.path.join(output_dir, "cobie.log"))
-        fh.setLevel(logging.DEBUG)
-        fh.setFormatter(logging.Formatter("%(asctime)s : %(levelname)s : %(message)s"))
-        logger = logging.getLogger("IFCtoCOBie")
-        logger.addHandler(fh)
-        selector = ifcopenshell.util.selector.Selector()
-        if props.cobie_json_file:
-            with open(props.cobie_json_file, "r") as f:
-                custom_data = json.load(f)
-        else:
-            custom_data = {}
-        parser = IfcCobieParser(logger, selector)
-
-        ifc_file = IfcStore.get_file()
-
-        if not (ifc_file and props.should_load_from_memory):
-            ifc_file = props.cobie_ifc_file
-
-        parser.parse(
-            ifc_file,
-            props.cobie_types,
-            props.cobie_components,
-            custom_data,
-        )
-        if self.file_format == "xlsx":
-            from cobie import CobieXlsWriter
-
-            writer = CobieXlsWriter(parser, output)
-            writer.write()
-            webbrowser.open("file://" + output + "." + self.file_format)
-        elif self.file_format == "ods":
-            from cobie import CobieOdsWriter
-
-            writer = CobieOdsWriter(parser, output)
-            writer.write()
-            webbrowser.open("file://" + output + "." + self.file_format)
-        else:
-            from cobie import CobieCsvWriter
-
-            writer = CobieCsvWriter(parser, output_dir)
-            writer.write()
-            webbrowser.open("file://" + output_dir)
-        webbrowser.open("file://" + output_dir + "/cobie.log")
-        return {"FINISHED"}
@@ -29,7 +29,7 @@ class BIM_PT_constraints(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_project_setup"
+    bl_parent_id = "BIM_PT_tab_project_setup"

    @classmethod
    def poll(cls, context):
@@ -29,7 +29,7 @@ class BIM_PT_context(bpy.types.Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_geometry"
+    bl_parent_id = "BIM_PT_tab_geometry"

    @classmethod
    def poll(cls, context):
@@ -20,64 +20,65 @@ import bpy
 from . import ui, prop, operator

 classes = (
+    operator.AddCostColumn,
+    operator.AddCostItem,
+    operator.AddCostItemQuantity,
    operator.AddCostSchedule,
-    operator.RemoveCostSchedule,
-    operator.EditCostSchedule,
+    operator.AddCostValue,
+    operator.AddCurrency,
+    operator.AddSummaryCostItem,
+    operator.AssignCostItemQuantity,
+    operator.AssignCostItemType,
+    operator.AssignCostValue,
+    operator.CalculateCostItemResourceValue,
+    operator.ChangeParentCostItem,
+    operator.ClearCostItemAssignments,
+    operator.ContractCostItem,
+    operator.ContractCostItemRate,
+    operator.ContractCostItems,
+    operator.CopyCostItem,
+    operator.CopyCostItemValues,
+    operator.DisableEditingCostItem,
+    operator.DisableEditingCostItemQuantity,
+    operator.DisableEditingCostItemValue,
+    operator.DisableEditingCostSchedule,
    operator.EditCostItem,
    operator.EditCostItemQuantity,
    operator.EditCostItemValue,
    operator.EditCostItemValueFormula,
-    operator.EnableEditingCostSchedule,
-    operator.EnableEditingCostItems,
+    operator.EditCostSchedule,
    operator.EnableEditingCostItem,
-    operator.ExportCostSchedules,
-    operator.ExpandCostItems,
    operator.EnableEditingCostItemQuantities,
    operator.EnableEditingCostItemQuantity,
-    operator.EnableEditingCostItemValues,
+    operator.EnableEditingCostItems,
    operator.EnableEditingCostItemValue,
    operator.EnableEditingCostItemValueFormula,
-    operator.DisableEditingCostItem,
-    operator.DisableEditingCostSchedule,
-    operator.DisableEditingCostItemQuantity,
-    operator.DisableEditingCostItemValue,
-    operator.AddCostColumn,
-    operator.RemoveCostColumn,
-    operator.AddCostItem,
-    operator.AddSummaryCostItem,
+    operator.EnableEditingCostItemValues,
+    operator.EnableEditingCostSchedule,
    operator.ExpandCostItem,
-    operator.ContractCostItem,
+    operator.ExpandCostItemRate,
+    operator.ExpandCostItems,
+    operator.ExportCostSchedules,
+    operator.HighlightProductCostItem,
+    operator.ImportCostScheduleCsv,
+    operator.LoadCostItemElementQuantities,
+    operator.LoadCostItemQuantities,
+    operator.LoadCostItemResourceQuantities,
+    operator.LoadCostItemTaskQuantities,
+    operator.LoadCostItemTypes,
+    operator.LoadProductCostItems,
+    operator.LoadScheduleOfRates,
+    operator.RemoveCostColumn,
    operator.RemoveCostItem,
-    operator.AssignCostItemType,
-    operator.UnassignCostItemType,
-    operator.AssignCostItemQuantity,
-    operator.UnassignCostItemQuantity,
-    operator.AddCostItemQuantity,
    operator.RemoveCostItemQuantity,
-    operator.AddCostValue,
    operator.RemoveCostItemValue,
-    operator.CopyCostItemValues,
+    operator.RemoveCostSchedule,
+    operator.ReorderCostItem,
    operator.SelectCostItemProducts,
    operator.SelectCostScheduleProducts,
-    operator.ImportCostScheduleCsv,
-    operator.LoadCostItemQuantities,
-    operator.LoadCostItemTypes,
-    operator.AssignCostValue,
-    operator.LoadScheduleOfRates,
-    operator.ExpandCostItemRate,
-    operator.ContractCostItemRate,
-    operator.CalculateCostItemResourceValue,
-    operator.ClearCostItemAssignments,
-    operator.HighlightProductCostItem,
-    operator.LoadProductCostItems,
-    operator.ReorderCostItem,
    operator.SelectUnassignedProducts,
-    operator.LoadCostItemElementQuantities,
-    operator.LoadCostItemTaskQuantities,
-    operator.LoadCostItemResourceQuantities,
-    operator.ChangeParentCostItem,
-    operator.CopyCostItem,
-    operator.AddCurrency,
+    operator.UnassignCostItemQuantity,
+    operator.UnassignCostItemType,
    prop.CostItem,
    prop.CostItemQuantity,
    prop.CostItemType,
@@ -117,6 +117,7 @@ class CostSchedulesData:
        data["TotalAppliedValue"] = 0.0
        data["TotalCost"] = 0.0
        has_unit_basis = False
+        is_sum = False
        if root_element.is_a("IfcCostItem"):
            values = root_element.CostValues
        elif root_element.is_a("IfcConstructionResource"):
@@ -130,14 +131,18 @@ class CostSchedulesData:
                data["UnitBasisValueComponent"] = cost_value_data["UnitBasis"]["ValueComponent"]
                data["UnitBasisUnitSymbol"] = cost_value_data["UnitBasis"]["UnitSymbol"]
                has_unit_basis = True
-        if has_unit_basis:
-            data["TotalCost"] = data["TotalAppliedValue"] / data["UnitBasisValueComponent"]
-        else:
-            if data["TotalCostQuantity"] is not None:
-                data["TotalCost"] = data["TotalAppliedValue"] * data["TotalCostQuantity"]
            else:
-                data["TotalCost"] = data["TotalAppliedValue"]
-                data["TotalAppliedValue"] = None
+                data["UnitBasisValueComponent"] = 1
+                data["UnitBasisUnitSymbol"] = "U"
+            if cost_value.Category == "*":
+                is_sum = True
+        cost_quantity = data["TotalCostQuantity"] or 1
+        if has_unit_basis:
+            data["TotalCost"] = data["TotalAppliedValue"] * cost_quantity / data["UnitBasisValueComponent"]
+        else:
+            data["TotalCost"] = data["TotalAppliedValue"] * cost_quantity
+        if is_sum:
+            data["TotalAppliedValue"] = None

    @classmethod
    def _load_cost_item_quantities(cls, cost_item, data):
@@ -153,8 +158,10 @@ class CostSchedulesData:
            unit = ifcopenshell.util.unit.get_property_unit(quantity, tool.Ifc.get())
            if unit:
                data["UnitSymbol"] = ifcopenshell.util.unit.get_unit_symbol(unit)
-            else:
-                data["UnitSymbol"] = None
+            if quantity.is_a("IfcPhysicalSimpleQuantity"):
+                measure_class = quantity.wrapped_data.declaration().as_entity().attribute_by_index(3).type_of_attribute().declared_type().name()
+                if "Count" in measure_class:
+                    data["UnitSymbol"] = "U"

        # same_unit_nested_cost_item = set()
        # data["DerivedTotalCostQuantity"] = None
@@ -33,9 +33,26 @@ class AddCostSchedule(bpy.types.Operator, tool.Ifc.Operator):
    bl_label = "Add Cost Schedule"
    bl_options = {"REGISTER", "UNDO"}
    bl_description = "Add a new cost schedule"
+    name: bpy.props.StringProperty()
+    object_type: bpy.props.StringProperty()

    def _execute(self, context):
-        core.add_cost_schedule(tool.Ifc, predefined_type=context.scene.BIMCostProperties.cost_schedule_predefined_types)
+        core.add_cost_schedule(
+            tool.Ifc,
+            name=self.name,
+            predefined_type=context.scene.BIMCostProperties.cost_schedule_predefined_types,
+            object_type=self.object_type,
+        )
+
+    def draw(self, context):
+        layout = self.layout
+        layout.prop(self, "name", text="Name")
+        layout.prop(context.scene.BIMCostProperties, "cost_schedule_predefined_types", text="Type")
+        if context.scene.BIMCostProperties.cost_schedule_predefined_types == "USERDEFINED":
+            layout.prop(self, "object_type", text="Object type")
+
+    def invoke(self, context, event):
+        return context.window_manager.invoke_props_dialog(self)


 class EditCostSchedule(bpy.types.Operator, tool.Ifc.Operator):
@@ -156,6 +173,17 @@ class ContractCostItem(bpy.types.Operator, tool.Ifc.Operator):
        core.contract_cost_item(tool.Cost, cost_item=tool.Ifc.get().by_id(self.cost_item))


+class ContractCostItems(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.contract_cost_items"
+    bl_label = "Contract Cost Item"
+    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Collapse cost item tree"
+    cost_item: bpy.props.IntProperty()
+
+    def _execute(self, context):
+        core.contract_cost_items(tool.Cost)
+
+
 class RemoveCostItem(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.remove_cost_item"
    bl_label = "Remove Cost Item"
@@ -635,7 +663,9 @@ class ExportCostSchedules(bpy.types.Operator):

    def execute(self, context):
        cost_schedule = tool.Ifc.get().by_id(self.cost_schedule) if self.cost_schedule else None
-        r = core.export_cost_schedules(tool.Cost, filepath=self.filepath, format=self.format, cost_schedule=cost_schedule)
+        r = core.export_cost_schedules(
+            tool.Cost, filepath=self.filepath, format=self.format, cost_schedule=cost_schedule
+        )
        if isinstance(r, str):
            self.report({"ERROR"}, r)
        return {"FINISHED"}
@@ -21,7 +21,6 @@ import blenderbim.bim.module.cost.prop as CostProp
 from bpy.types import Panel, UIList
 from blenderbim.bim.ifc import IfcStore
 from blenderbim.bim.module.cost.data import CostSchedulesData
-import blenderbim.tool as tool


 class BIM_PT_cost_schedules(Panel):
@@ -30,30 +29,32 @@ class BIM_PT_cost_schedules(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
+    bl_parent_id = "BIM_PT_tab_cost"
+    bl_options = {"HIDE_HEADER"}

    @classmethod
    def poll(cls, context):
-        return tool.Blender.is_tab(context, "SCHEDULING") and tool.Ifc.get() and tool.Ifc.get().schema != "IFC2X3"
+        file = IfcStore.get_file()
+        return file and hasattr(file, "schema") and file.schema != "IFC2X3"

    def draw(self, context):
        if not CostSchedulesData.is_loaded:
            CostSchedulesData.load()

        self.props = context.scene.BIMCostProperties
-        row = self.layout.row()
+        row = self.layout.row(align=True)
        if not self.props.active_cost_schedule_id:
            if CostSchedulesData.data["total_cost_schedules"]:
                row.label(text=f"{CostSchedulesData.data['total_cost_schedules']} Cost Schedules Found", icon="TEXT")
-                row.operator("bim.export_cost_schedules", text="Export as spreadsheet", icon="EXPORT")
            else:
-                row.label(text="No Cost Schedules found.", icon="COMMUNITY")
-            row = self.layout.row()
-            row.alignment = "RIGHT"
-            row.prop(self.props, "cost_schedule_predefined_types")
-            row.operator("bim.add_cost_schedule", icon="ADD", text="Add")
+                row.label(text="No Cost Schedules found.", icon="TEXT")
+            row.operator("bim.add_cost_schedule", icon="ADD", text="")

        for schedule in CostSchedulesData.data["schedules"]:
            self.draw_cost_schedule_ui(schedule)
+        row2 = self.layout.row()
+        row2.alignment = "RIGHT"
+        row2.operator("bim.export_cost_schedules", text="Export all", icon="EXPORT")

    def draw_cost_schedule_ui(self, cost_schedule):
        row = self.layout.row(align=True)
@@ -138,8 +139,8 @@ class BIM_PT_cost_schedules(Panel):
        row = self.layout.row(align=True)
        row.alignment = "RIGHT"
        row.operator("bim.add_summary_cost_item", text="Add Summary Cost", icon="ADD")
-        row.operator("bim.expand_all_tasks", text="Expand All")
-        row.operator("bim.contract_all_tasks", text="Contract All")
+        row.operator("bim.expand_cost_items", text="Expand All")
+        row.operator("bim.contract_cost_items", text="Contract All")
        row = self.layout.row(align=True)
        row.alignment = "RIGHT"
        if self.props.cost_items and self.props.active_cost_item_index < len(self.props.cost_items):
@@ -619,18 +620,22 @@ class BIM_UL_cost_items_trait:
        else:
            row.label(text="", icon="DOT")

-    def draw_total_cost_column(self, layout, cost_item):
-        format_numbers = "{0:,.2f}".format(cost_item["TotalCost"]).replace(",", " ")
-        currency = CostSchedulesData.data["currency"]
-        text = "{} {}".format(format_numbers, currency["name"]) if currency else format_numbers
-        layout.label(text=text)
-
    def draw_quantity_column(self, layout, cost_item):
        if CostSchedulesData.data["is_editing_rates"]:
            self.draw_uom_column(layout, cost_item)
        else:
            self.draw_total_quantity_column(layout, cost_item)

+    def draw_uom_column(self, layout, cost_item):
+        layout.label(text=cost_item["UnitBasisUnitSymbol"])
+
+    def draw_total_quantity_column(self, layout, cost_item):
+        if cost_item["TotalCostQuantity"]:
+            label = "{0:.2f}".format(cost_item["TotalCostQuantity"]) + f" {cost_item['UnitSymbol'] or '-'}"
+            layout.label(text=label)
+        else:
+            layout.label(text="-")
+
    def draw_value_column(self, layout, cost_item):
        if cost_item["TotalAppliedValue"]:
            text = "{0:,.2f}".format(cost_item["TotalAppliedValue"]).replace(",", " ")
@@ -642,8 +647,11 @@ class BIM_UL_cost_items_trait:
        else:
            layout.label(text="-")

-    def draw_uom_column(self, layout, cost_item):
-        layout.label(text=cost_item["UnitBasisUnitSymbol"] or "-" if cost_item["UnitBasisValueComponent"] else "-")
+    def draw_total_cost_column(self, layout, cost_item):
+        format_numbers = "{0:,.2f}".format(cost_item["TotalCost"]).replace(",", " ")
+        currency = CostSchedulesData.data["currency"]
+        text = "{} {}".format(format_numbers, currency["name"]) if currency else format_numbers
+        layout.label(text=text)

    def draw_order_operator(self, row, ifc_definition_id, cost_item):
        if cost_item["NestingIndex"] is not None:
@@ -656,20 +664,6 @@ class BIM_UL_cost_items_trait:
                op.cost_item = ifc_definition_id
                op.new_index = cost_item["NestingIndex"] - 1

-    def draw_total_quantity_column(self, layout, cost_item):
-        if cost_item["TotalCostQuantity"]:
-            label = "{0:.2f}".format(cost_item["TotalCostQuantity"]) + f" {cost_item['UnitSymbol'] or '-'}"
-            layout.label(text=label)
-        else:
-            layout.label(text="-")
-        # if cost_item["DerivedTotalCostQuantity"] not in [None, 0]:
-        #     layout.label(text="{0:.2f}".format(cost_item["DerivedTotalCostQuantity"]) + f" {cost_item['DerivedUnitSymbol'] or '-'}")
-        # else:
-        #     if cost_item["TotalCostQuantity"] == 0:
-        #         layout.label(text="-")
-        #     else:
-        #         layout.label(text="{0:.2f}".format(cost_item["TotalCostQuantity"]) + f" {cost_item['UnitSymbol'] or '-'}")
-

 class BIM_UL_cost_items(BIM_UL_cost_items_trait, UIList):
    def __init__(self):
@@ -0,0 +1,41 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2020, 2021 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import bpy
+from . import prop, workspace
+
+classes = (
+    prop.BIMCoveringProperties,
+    workspace.Hotkey,
+)
+
+
+def register():
+    if not bpy.app.background:
+        bpy.utils.register_tool(workspace.CoveringTool, after={"bim.structural_tool"}, separator=False, group=False)
+    bpy.types.Scene.BIMCoveringProperties = bpy.props.PointerProperty(type=prop.BIMCoveringProperties)
+#    bpy.types.Object.BIMObjectSpatialProperties = bpy.props.PointerProperty(type=prop.BIMObjectSpatialProperties)
+#    bpy.types.Scene.BIMSpatialManagerProperties = bpy.props.PointerProperty(type=prop.BIMSpatialManagerProperties)
+
+
+def unregister():
+    if not bpy.app.background:
+        bpy.utils.unregister_tool(workspace.CoveringTool)
+    del bpy.types.Scene.BIMCoveringProperties
+#    del bpy.types.Object.BIMObjectSpatialProperties
+#    del bpy.types.Scene.BIMSpatialManagerProperties
@@ -17,6 +17,8 @@
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.

 import bpy
+from blenderbim.bim.prop import StrProperty, Attribute
+#from blenderbim.bim.module.spatial.data import SpatialData
 from bpy.types import PropertyGroup
 from bpy.props import (
    PointerProperty,
@@ -28,11 +30,10 @@ from bpy.props import (
    FloatVectorProperty,
    CollectionProperty,
 )
+#import blenderbim.tool as tool
+#import blenderbim.core.geometry
+#import ifcopenshell


-class COBieProperties(PropertyGroup):
-    cobie_ifc_file: StringProperty(default="", name="COBie IFC File")
-    cobie_types: StringProperty(default=".COBieType", name="COBie Types")
-    cobie_components: StringProperty(default=".COBie", name="COBie Components")
-    cobie_json_file: StringProperty(default="", name="COBie JSON File")
-    should_load_from_memory: BoolProperty(default=False, name="Load from Memory")
+class BIMCoveringProperties(PropertyGroup):
+    ceiling_height: bpy.props.FloatProperty(name="ceiling_height", default=2.7, subtype="DISTANCE", description="Ceiling height")
@@ -0,0 +1,262 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2023 @Andrej730
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import os
+import bpy
+import ifcopenshell
+import blenderbim.tool as tool
+from blenderbim.bim.helper import prop_with_search
+from blenderbim.bim.module.model.data import AuthoringData
+from bpy.types import WorkSpaceTool
+from blenderbim.bim.ifc import IfcStore
+import blenderbim.bim.handler
+
+
+# declaring it here to avoid circular import problems
+class Operator:
+    def execute(self, context):
+        IfcStore.execute_ifc_operator(self, context)
+        blenderbim.bim.handler.refresh_ui_data()
+        return {"FINISHED"}
+
+class CoveringTool(WorkSpaceTool):
+    bl_space_type = "VIEW_3D"
+    bl_context_mode = "OBJECT"
+    bl_idname = "bim.covering_tool"
+    bl_label = "Covering Tool"
+    bl_description = "Create and edit coverings"
+    bl_icon = os.path.join(os.path.dirname(__file__), "ops.authoring.covering")
+    bl_widget = None
+    ifc_element_type = "IfcCoveringType"
+    bl_keymap = tool.Blender.get_default_selection_keypmap() + (
+        ("bim.covering_hotkey", {"type": "A", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_A")]}),
+        ("bim.covering_hotkey", {"type": "G", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_G")]}),
+    )
+
+    @classmethod
+    def draw_settings(cls, context, layout, ws_tool):
+        CoveringToolUI.draw(context, layout, ifc_element_type=cls.ifc_element_type)
+
+def add_layout_hotkey(layout, text, hotkey, description):
+    args = ["covering", layout, text, hotkey, description]
+    tool.Blender.add_layout_hotkey_operator(*args)
+
+class CoveringToolUI:
+    @classmethod
+    def draw(cls, context, layout, ifc_element_type = None):
+        cls.layout = layout
+        cls.props = context.scene.BIMModelProperties
+        cls.covering_props = context.scene.BIMCoveringProperties
+
+
+        row = cls.layout.row(align=True)
+        if not tool.Ifc.get():
+            row.label(text="No IFC Project", icon="ERROR")
+            return
+
+        if not AuthoringData.is_loaded:
+            AuthoringData.load(ifc_element_type)
+        elif AuthoringData.data["ifc_element_type"] != ifc_element_type:
+            AuthoringData.load(ifc_element_type)
+
+        if context.region.type == "TOOL_HEADER":
+            cls.draw_header_interface()
+        elif context.region.type in ("UI", "WINDOW"):
+            cls.draw_basic_bim_tool_interface()
+
+        cls.draw_default_interface()
+
+
+
+    @classmethod
+    def draw_header_interface(cls):
+        cls.draw_type_selection_interface()
+
+    @classmethod
+    def draw_default_interface(cls):
+        row = cls.layout.row(align=True)
+        row.prop(data=cls.props, property="rl3", text="RL")
+        row = cls.layout.row(align=True)
+        row.prop(data=cls.covering_props, property="ceiling_height", text="Ceiling Height")
+        if AuthoringData.data["ifc_classes"]:
+            active_obj = bpy.context.active_object
+            element = tool.Ifc.get_entity(active_obj)
+            collection = bpy.context.view_layer.active_layer_collection.collection
+            collection_obj = collection.BIMCollectionProperties.obj
+
+            relating_type_id = int(cls.props.relating_type_id)
+            type_material_usage = ifcopenshell.util.element.get_material(tool.Ifc.get().by_id(relating_type_id)).is_a()
+
+#               PLEASE KEEP COMMENTS AS A REMINDER
+#                elif element and bpy.context.selected_objects and element.is_a("IfcSpace"):
+#                    op. = row.operator("bim.add_istance_flooring_from_spaces"):
+
+            if (type_material_usage == "IfcMaterialLayerSet" and
+                not bpy.context.selected_objects):
+                row = cls.layout.row(align=True)
+                row.label(text="", icon="EVENT_SHIFT")
+                row.label(text="", icon="EVENT_A")
+                if tool.Ifc.get_entity(collection_obj):
+                    if AuthoringData.data["predefined_type"] == "FLOORING":
+                        op = row.operator("bim.add_instance_flooring_covering_from_cursor")
+                    elif AuthoringData.data["predefined_type"] == "CEILING":
+                        op = row.operator("bim.add_instance_ceiling_covering_from_cursor")
+                    else:
+                        op = row.operator("bim.add_constr_type_instance", text="Add")
+                        op.from_invoke = True
+                        if cls.props.relating_type_id.isnumeric():
+                            op.relating_type_id = int(cls.props.relating_type_id)
+
+                else:
+                    op = row.operator("bim.add_constr_type_instance", text="Add")
+                    op.from_invoke = True
+                    if cls.props.relating_type_id.isnumeric():
+                        op.relating_type_id = int(cls.props.relating_type_id)
+
+            elif (AuthoringData.data["predefined_type"] == "FLOORING" and
+                type_material_usage == "IfcMaterialLayerSet" and
+                element and
+                bpy.context.selected_objects and
+                element.is_a("IfcWall")):
+                    row = cls.layout.row(align=True)
+                    row.label(text="", icon="EVENT_SHIFT")
+                    row.label(text="", icon="EVENT_A")
+                    op = row.operator("bim.add_instance_flooring_coverings_from_walls")
+
+            elif (element and
+                  bpy.context.selected_objects and
+                  element.is_a("IfcCovering") and
+#                  AuthoringData.data["predefined_type"] == "FLOORING" and
+                  AuthoringData.data["active_material_usage"] == "LAYER3"):
+                row = cls.layout.row(align=True)
+                row.label(text="", icon="EVENT_SHIFT")
+                row.label(text="", icon="EVENT_G")
+                op = row.operator("bim.regen_selected_covering_object")
+
+
+
+#            elif AuthoringData.data["predefined_type"] == "CEILING":
+#                row = cls.layout.row(align=True)
+#                row.prop(data=cls.props, property="ceiling_height", text="ceiling height")
+#                if element and bpy.context.selected_objects and element.is_a("IfcWall"):
+#                    op = row.operator("bim.add_instance_ceiling_coverings_from_walls")
+#                elif element and bpy.context.selected_objects and element.is_a("IfcSpace"):
+#                    op. = row.operator("bim.add_istance_flooring_from_spaces"):
+#                else:
+#                    op = row.operator("bim.add_instance_ceiling_from_cursor")
+#                    op = row.operator("bim.add_constr_type_instance", text="Add")
+#                    op.from_invoke = True
+#                    if cls.props.relating_type_id.isnumeric():
+#                        op.relating_type_id = int(cls.props.relating_type_id)
+            else:
+                row = cls.layout.row(align=True)
+                row.label(text="", icon="EVENT_SHIFT")
+                row.label(text="", icon="EVENT_A")
+                op = row.operator("bim.add_constr_type_instance", text="Add")
+                op.from_invoke = True
+                if cls.props.relating_type_id.isnumeric():
+                    op.relating_type_id = int(cls.props.relating_type_id)
+
+    @classmethod
+    def draw_type_selection_interface(cls):
+        # shared by both sidebar and header
+        row = cls.layout.row(align=True)
+        if AuthoringData.data["ifc_classes"]:
+            row = cls.layout.row(align=True)
+            row.label(text="", icon="FILE_3D")
+            prop_with_search(row, cls.props, "relating_type_id", text="")
+            row.operator("bim.launch_type_manager", icon="LIGHTPROBE_GRID", text="")
+        else:
+            row.label(text=f"No {AuthoringData.data['ifc_element_type']} Found", icon="ERROR")
+            row = cls.layout.row()
+            row.operator("bim.launch_type_manager", icon="LIGHTPROBE_GRID", text="Launch Type Manager")
+
+    @classmethod
+    def draw_basic_bim_tool_interface(cls):
+        cls.draw_type_selection_interface()
+
+        if AuthoringData.data["ifc_classes"]:
+            if cls.props.ifc_class:
+                box = cls.layout.box()
+                if AuthoringData.data["type_thumbnail"]:
+                    box.template_icon(icon_value=AuthoringData.data["type_thumbnail"], scale=5)
+                else:
+                    op = box.operator("bim.load_type_thumbnails", text="Load Thumbnails", icon="FILE_REFRESH")
+                    op.ifc_class = cls.props.ifc_class
+
+
+class Hotkey(bpy.types.Operator, Operator):
+    bl_idname = "bim.covering_hotkey"
+    bl_label = "Hotkey"
+    bl_options = {"REGISTER", "UNDO"}
+    hotkey: bpy.props.StringProperty()
+    description: bpy.props.StringProperty()
+
+    @classmethod
+    def poll(cls, context):
+        return tool.Ifc.get()
+
+    @classmethod
+    def description(cls, context, operator):
+        return operator.description or ""
+
+    def _execute(self, context):
+#        self.props = context.scene.BIMCoveringProperties
+        getattr(self, f"hotkey_{self.hotkey}")()
+
+    def invoke(self, context, event):
+        # https://blender.stackexchange.com/questions/276035/how-do-i-make-operators-remember-their-property-values-when-called-from-a-hotkey
+        # self.props = context.scene.BIMSpatialProperties
+        return self.execute(context)
+
+    def draw(self, context):
+        pass
+
+    def hotkey_S_A(self):
+        active_obj = bpy.context.active_object
+        element = tool.Ifc.get_entity(active_obj)
+        collection = bpy.context.view_layer.active_layer_collection.collection
+        collection_obj = collection.BIMCollectionProperties.obj
+
+        if AuthoringData.data["predefined_type"] == "FLOORING":
+            if element and bpy.context.selected_objects and element.is_a("IfcWall"):
+                bpy.ops.bim.add_instance_flooring_coverings_from_walls()
+            elif tool.Ifc.get_entity(collection_obj):
+                bpy.ops.bim.add_instance_flooring_covering_from_cursor()
+            else:
+                bpy.ops.bim.add_constr_type_instance()
+        elif AuthoringData.data["predefined_type"] == "CEILING":
+            if element and bpy.context.selected_objects and element.is_a("IfcWall"):
+                pass
+            elif tool.Ifc.get_entity(collection_obj):
+                bpy.ops.bim.add_instance_ceiling_covering_from_cursor()
+            else:
+                bpy.ops.bim.add_constr_type_instance()
+        else:
+            bpy.ops.bim.add_constr_type_instance()
+
+    def hotkey_S_G(self):
+        active_obj = bpy.context.active_object
+        element = tool.Ifc.get_entity(active_obj)
+        if (element and
+            bpy.context.selected_objects and
+            element.is_a("IfcCovering") and
+            AuthoringData.data["active_material_usage"] == "LAYER3"):
+                bpy.ops.bim.regen_selected_covering_object()
+
@@ -21,14 +21,15 @@ from . import ui, prop, operator

 classes = (
    operator.AddCsvAttribute,
-    operator.RemoveCsvAttribute,
-    operator.RemoveAllCsvAttributes,
-    operator.ExportIfcCsv,
-    operator.ImportIfcCsv,
-    operator.EyedropIfcCsv,
-    operator.SelectCsvIfcFile,
-    operator.ImportCsvAttributes,
    operator.ExportCsvAttributes,
+    operator.ExportIfcCsv,
+    operator.ImportCsvAttributes,
+    operator.ImportIfcCsv,
+    operator.RemoveAllCsvAttributes,
+    operator.RemoveCsvAttribute,
+    operator.ReorderCsvAttribute,
+    operator.SelectCsvIfcFile,
+    prop.CsvAttribute,
    prop.CsvProperties,
    ui.BIM_PT_ifccsv,
 )
@@ -16,16 +16,16 @@
 # You should have received a copy of the GNU General Public License
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.

-import bpy
-import ifccsv
-import ifcopenshell
 import os
-import logging
+import bpy
 import json
-import webbrowser
+import ifccsv
+import logging
 import tempfile
+import ifcopenshell
+import blenderbim.tool as tool
 from blenderbim.bim.ifc import IfcStore
-from blenderbim.bim.handler import purge_module_data
+from blenderbim.bim.handler import refresh_ui_data


 class AddCsvAttribute(bpy.types.Operator):
@@ -61,28 +61,46 @@ class RemoveAllCsvAttributes(bpy.types.Operator):
        return {"FINISHED"}


+class ReorderCsvAttribute(bpy.types.Operator):
+    bl_idname = "bim.reorder_csv_attribute"
+    bl_label = "Reorder CSV Attribute"
+    bl_options = {"REGISTER", "UNDO"}
+    old_index: bpy.props.IntProperty()
+    new_index: bpy.props.IntProperty()
+
+    def execute(self, context):
+        old = context.scene.CsvProperties.csv_attributes[self.old_index]
+        new = context.scene.CsvProperties.csv_attributes[self.new_index]
+        props = ["name", "header", "sort", "group", "varies_value", "summary"]
+        for prop in props:
+            value = getattr(new, prop)
+            setattr(new, prop, getattr(old, prop))
+            setattr(old, prop, value)
+        return {"FINISHED"}
+
+
 class ImportCsvAttributes(bpy.types.Operator):
    bl_idname = "bim.import_csv_attributes"
-    bl_label = "Import CSV Template"
+    bl_label = "Load CSV Settings"
    bl_description = "Import a json template for CSV export"
    bl_options = {"REGISTER", "UNDO"}
    filter_glob: bpy.props.StringProperty(default="*.json", options={"HIDDEN"})
    filepath: bpy.props.StringProperty(subtype="FILE_PATH")

    def execute(self, context):
-        csv_props = context.scene.CsvProperties
-        csv_json = json.load(open(self.filepath))
-
-        expression = csv_json.get("expression", "")
-        if expression:
-            csv_props.ifc_selector = expression
-
-        attributes = csv_json.get("attributes", [])
-        if attributes:
-            csv_props.csv_attributes.clear()
-            for attribute in attributes:
-                csv_props.csv_attributes.add().name = attribute
+        props = context.scene.CsvProperties
+        data = json.load(open(self.filepath))
+        tool.Search.import_filter_query(data["query"], props.filter_groups)

+        props.csv_attributes.clear()
+        for attribute in data["attributes"]:
+            new = props.csv_attributes.add()
+            new.name = attribute["name"]
+            new.header = attribute["header"]
+            new.sort = attribute["sort"]
+            new.group = attribute["group"]
+            new.summary = attribute["summary"]
+            new.formatting = attribute["formatting"]
        return {"FINISHED"}

    def invoke(self, context, event):
@@ -92,7 +110,7 @@ class ImportCsvAttributes(bpy.types.Operator):

 class ExportCsvAttributes(bpy.types.Operator):
    bl_idname = "bim.export_csv_attributes"
-    bl_label = "Export CSV Template"
+    bl_label = "Save CSV Settings"
    bl_options = {"REGISTER", "UNDO"}
    bl_description = "Save a json template for CSV export"
    filename_ext = ".json"
@@ -100,22 +118,25 @@ class ExportCsvAttributes(bpy.types.Operator):
    filepath: bpy.props.StringProperty(subtype="FILE_PATH")

    def execute(self, context):
-        csv_props = context.scene.CsvProperties
+        props = context.scene.CsvProperties

-        csv_template = {}
-        expression = csv_props.ifc_selector
-        if expression:
-            csv_template["expression"] = expression
-
-        csv_attributes = []
-        for attribute in csv_props.csv_attributes:
-            attribute_name = attribute.name
-            csv_attributes.append(attribute_name)
-        if csv_attributes:
-            csv_template["attributes"] = csv_attributes
+        data = {
+            "query": tool.Search.export_filter_query(props.filter_groups),
+            "attributes": [
+                {
+                    "name": a.name,
+                    "header": a.header,
+                    "sort": a.sort,
+                    "group": a.group,
+                    "summary": a.summary,
+                    "formatting": a.formatting,
+                }
+                for a in props.csv_attributes
+            ],
+        }

        with open(self.filepath, "w") as outfile:
-            json.dump(csv_template, outfile)
+            json.dump(data, outfile)

        return {"FINISHED"}

@@ -129,9 +150,8 @@ class ExportCsvAttributes(bpy.types.Operator):
 class ExportIfcCsv(bpy.types.Operator):
    bl_idname = "bim.export_ifccsv"
    bl_label = "Export IFC"
-    #filename_ext = ".csv"
+    filename_ext = ".csv"
    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
-    

    def invoke(self, context, event):
        props = context.scene.CsvProperties
@@ -149,19 +169,56 @@ class ExportIfcCsv(bpy.types.Operator):
            ifc_file = IfcStore.get_file()
        else:
            ifc_file = ifcopenshell.open(props.csv_ifc_file)
-        selector = ifcopenshell.util.selector.Selector()
-        results = selector.parse(ifc_file, props.ifc_selector)
+        results = ifcopenshell.util.selector.filter_elements(
+            ifc_file, tool.Search.export_filter_query(props.filter_groups)
+        )
+
        ifc_csv = ifccsv.IfcCsv()
        attributes = [a.name for a in props.csv_attributes]
+        headers = [a.header for a in props.csv_attributes]
+
+        sort = []
+        groups = []
+        summaries = []
+        formatting = []
+        for attribute in props.csv_attributes:
+            if attribute.sort != "NONE":
+                sort.append({"name": attribute.name, "order": attribute.sort})
+            if attribute.group != "NONE":
+                groups.append({"name": attribute.name, "type": attribute.group, "varies_value": attribute.varies_value})
+            if attribute.summary != "NONE":
+                summaries.append({"name": attribute.name, "type": attribute.summary})
+
+            if attribute.formatting != "{{value}}" and "{{value}}" in attribute.formatting:
+                formatting.append({"name": attribute.name, "format": attribute.formatting})
+
        sep = props.csv_custom_delimiter if props.csv_delimiter == "CUSTOM" else props.csv_delimiter
-        ifc_csv.export(ifc_file, results, attributes, output=self.filepath, format=props.format, delimiter=sep)
+        ifc_csv.export(
+            ifc_file,
+            results,
+            attributes,
+            headers=headers,
+            output=self.filepath,
+            format=props.format,
+            should_preserve_existing=props.should_preserve_existing,
+            delimiter=sep,
+            include_global_id=props.include_global_id,
+            null=props.null_value,
+            empty=props.empty_value,
+            bool_true=props.true_value,
+            bool_false=props.false_value,
+            sort=sort,
+            groups=groups,
+            summaries=summaries,
+            formatting=formatting,
+        )
        return {"FINISHED"}


 class ImportIfcCsv(bpy.types.Operator):
    bl_idname = "bim.import_ifccsv"
-    bl_label = "Import CSV to IFC"
-    filename_ext = ".csv"
+    bl_label = "Import to IFC"
+    filter_glob: bpy.props.StringProperty(default="*.csv;*.ods;*.xlsx", options={"HIDDEN"})
    filepath: bpy.props.StringProperty(subtype="FILE_PATH")

    def invoke(self, context, event):
@@ -180,25 +237,20 @@ class ImportIfcCsv(bpy.types.Operator):
            ifc_file = ifcopenshell.open(props.csv_ifc_file)
        ifc_csv = ifccsv.IfcCsv()
        sep = props.csv_custom_delimiter if props.csv_delimiter == "CUSTOM" else props.csv_delimiter
-        ifc_csv.Import(ifc_file, self.filepath, delimiter=sep)
+        attributes = [a.name for a in props.csv_attributes]
+        ifc_csv.Import(
+            ifc_file,
+            self.filepath,
+            attributes=attributes,
+            delimiter=sep,
+            null=props.null_value,
+            empty=props.empty_value,
+            bool_true=props.true_value,
+            bool_false=props.false_value,
+        )
        if not props.should_load_from_memory:
            ifc_file.write(props.csv_ifc_file)
-        purge_module_data()
-        return {"FINISHED"}
-
-
-class EyedropIfcCsv(bpy.types.Operator):
-    bl_idname = "bim.eyedrop_ifccsv"
-    bl_label = "Query Selected Items"
-    bl_options = {"REGISTER", "UNDO"}
-
-    def execute(self, context):
-        global_ids = []
-        self.file = IfcStore.get_file()
-        for obj in context.selected_objects:
-            if hasattr(obj, "BIMObjectProperties") and obj.BIMObjectProperties.ifc_definition_id:
-                global_ids.append("#" + self.file.by_id(obj.BIMObjectProperties.ifc_definition_id).GlobalId)
-        context.scene.CsvProperties.ifc_selector = "|".join(global_ids)
+        refresh_ui_data()
        return {"FINISHED"}


@@ -17,6 +17,7 @@
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.

 import bpy
+from blenderbim.bim.module.search.prop import BIMFilterGroup
 from blenderbim.bim.prop import StrProperty
 from bpy.types import PropertyGroup
 from bpy.props import (
@@ -31,10 +32,46 @@ from bpy.props import (
 )


+class CsvAttribute(PropertyGroup):
+    name: StringProperty(name="Query", default="class")
+    header: StringProperty(name="Header Value", default="IFC Class")
+    sort: EnumProperty(items=[("NONE", "None", ""), ("ASC", "Ascending", ""), ("DESC", "Descending", "")])
+    group: EnumProperty(
+        items=[
+            ("NONE", "None", "Don't group any rows"),
+            ("GROUP", "Group", "All rows where this value is identical will be merged"),
+            ("CONCAT", "Concatenation", "Concatenate values if values vary within a group"),
+            ("VARIES", "Varies", "Show a custom value if values vary within a group"),
+            ("SUM", "Sum", "Sums the total value of rows in a group"),
+            ("AVERAGE", "Average", "Averages the total value of rows in a group"),
+            ("MIN", "Min", "Gets the minimum value of rows in a group"),
+            ("MAX", "Max", "Gets the maximum value of rows in a group"),
+        ]
+    )
+    varies_value: StringProperty(default="Varies", name="Varies Value")
+    summary: EnumProperty(
+        items=[
+            ("NONE", "None", "Don't provide a summary row"),
+            ("SUM", "Sum", "Sums the total value of all rows"),
+            ("AVERAGE", "Average", "Averages the total value of all rows"),
+            ("MIN", "Min", "Gets the minimum value of all rows"),
+            ("MAX", "Max", "Gets the maximum value of all rows"),
+        ]
+    )
+    formatting: StringProperty(default="{{value}}", name="Formatting")
+
+
 class CsvProperties(PropertyGroup):
    csv_ifc_file: StringProperty(default="", name="IFC File")
    ifc_selector: StringProperty(default="", name="IFC Selector")
-    csv_attributes: CollectionProperty(name="CSV Attributes", type=StrProperty)
+    filter_groups: CollectionProperty(type=BIMFilterGroup, name="Filter Groups")
+    csv_attributes: CollectionProperty(name="CSV Attributes", type=CsvAttribute)
+    should_preserve_existing: BoolProperty(default=False, name="Preserve Existing")
+    include_global_id: BoolProperty(default=True, name="Include GlobalId")
+    null_value: StringProperty(default="N/A", name="Null Value")
+    empty_value: StringProperty(default="-", name="Empty String Value")
+    true_value: StringProperty(default="YES", name="True Value")
+    false_value: StringProperty(default="NO", name="False Value")
    csv_delimiter: EnumProperty(
        items=[
            (";", ";", ""),
@@ -55,4 +92,9 @@ class CsvProperties(PropertyGroup):
        default="csv",
    )
    csv_custom_delimiter: StringProperty(default="", name="Custom Delimiter")
+    should_show_settings: BoolProperty(default=False, name="Show Settings")
+    should_show_sort: BoolProperty(default=False, name="Show Sorting")
+    should_show_group: BoolProperty(default=False, name="Show Grouping")
+    should_show_summary: BoolProperty(default=False, name="Show Summary")
+    should_show_formatting: BoolProperty(default=False, name="Show Formatting")
    should_load_from_memory: BoolProperty(default=False, name="Load from Memory")
@@ -16,12 +16,14 @@
 # You should have received a copy of the GNU General Public License
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.

+import blenderbim.bim.helper
 from bpy.types import Panel
 from blenderbim.bim.ifc import IfcStore
+from blenderbim.bim.module.search.data import SearchData


 class BIM_PT_ifccsv(Panel):
-    bl_label = "CSV Import/Export"
+    bl_label = "Spreadsheet Import/Export"
    bl_idname = "BIM_PT_ifccsv"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
@@ -36,45 +38,84 @@ class BIM_PT_ifccsv(Panel):
        props = scene.CsvProperties

        if IfcStore.get_file():
-            row = layout.row()
+            row = layout.row(align=True)
            row.prop(props, "should_load_from_memory")
+            row.operator("bim.import_csv_attributes", icon="IMPORT", text="")
+            row.operator("bim.export_csv_attributes", icon="EXPORT", text="")
+        else:
+            row = layout.row(align=True)
+            row.alignment = "RIGHT"
+            row.operator("bim.import_csv_attributes", icon="IMPORT", text="")
+            row.operator("bim.export_csv_attributes", icon="EXPORT", text="")
+        row.prop(props, "should_show_settings", icon="PREFERENCES", text="")

        if not IfcStore.get_file() or not props.should_load_from_memory:
            row = layout.row(align=True)
            row.prop(props, "csv_ifc_file")
            row.operator("bim.select_csv_ifc_file", icon="FILE_FOLDER", text="")

-        row = layout.row(align=True)
-        row.prop(props, "ifc_selector")
-        row.operator("bim.eyedrop_ifccsv", icon="EYEDROPPER", text="")
-        layout.separator()
+        if props.should_show_settings:
+            layout.use_property_split = True
+            row = layout.row(align=True)
+            row.prop(props, "format")
+
+            if props.format == "csv":
+                row = layout.row(align=True)
+                row.prop(props, "csv_delimiter")
+
+                if props.csv_delimiter == "CUSTOM":
+                    row = layout.row(align=True)
+                    row.prop(props, "csv_custom_delimiter")
+
+            row = layout.row()
+            row.prop(props, "should_preserve_existing")
+            row = layout.row()
+            row.prop(props, "include_global_id")
+            row = layout.row()
+            row.prop(props, "null_value")
+            row = layout.row()
+            row.prop(props, "empty_value")
+            row = layout.row()
+            row.prop(props, "true_value")
+            row = layout.row()
+            row.prop(props, "false_value")
+            layout.use_property_split = False
+
+        blenderbim.bim.helper.draw_filter(self.layout, props, SearchData, "csv")

        row = layout.row(align=True)
        row.operator("bim.add_csv_attribute", icon="ADD")
-        row.operator("bim.remove_all_csv_attributes", icon="CANCEL")
-        row = layout.row(align=True)
-        row.operator("bim.import_csv_attributes", icon="IMPORT")
-        row.operator("bim.export_csv_attributes", icon="EXPORT")
+        row.prop(props, "should_show_sort", icon="SORTSIZE", text="")
+        row.prop(props, "should_show_group", icon="OUTLINER_COLLECTION", text="")
+        row.prop(props, "should_show_summary", icon="SYNTAX_ON", text="")
+        row.prop(props, "should_show_formatting", icon="CON_TRANSLIKE", text="")

+        total = len(props.csv_attributes)
        for index, attribute in enumerate(props.csv_attributes):
            row = layout.row(align=True)
            row.prop(attribute, "name", text="")
+            row.prop(attribute, "header", text="")
+            if props.should_show_sort:
+                row.prop(attribute, "sort", text="")
+            if props.should_show_group:
+                row.prop(attribute, "group", text="")
+                if attribute.group == "VARIES":
+                    row.prop(attribute, "varies_value", text="")
+            if props.should_show_summary:
+                row.prop(attribute, "summary", text="")
+            if props.should_show_formatting:
+                row.prop(attribute, "formatting", text="")
+            if total > 1:
+                if index != 0:
+                    op = row.operator(f"bim.reorder_csv_attribute", icon="TRIA_UP", text="")
+                    op.old_index = index
+                    op.new_index = index - 1
+                if index + 1 != total:
+                    op = row.operator(f"bim.reorder_csv_attribute", icon="TRIA_DOWN", text="")
+                    op.old_index = index
+                    op.new_index = index + 1
            row.operator("bim.remove_csv_attribute", icon="X", text="").index = index
-        
+
        row = layout.row(align=True)
-        row.prop(props, "format")
-
-        if props.format == 'csv':
-            row = layout.row(align=True)
-            row.prop(props, "csv_delimiter")
-
-            if props.csv_delimiter == "CUSTOM":
-                row = layout.row(align=True)
-                row.prop(props, "csv_custom_delimiter")
-
-        row = layout.row()
-        split = row.split(factor=0.5)
-        c = split.column()
-        c.operator("bim.export_ifccsv", icon="EXPORT", text="Export IFC to " + props.format.upper())
-        c = split.column()
-        c.operator("bim.import_ifccsv", icon="IMPORT")
+        row.operator("bim.export_ifccsv", icon="EXPORT", text="Export IFC to " + props.format.upper())
+        row.operator("bim.import_ifccsv", icon="IMPORT")
@@ -20,23 +20,26 @@ import bpy
 from . import ui, prop, operator

 classes = (
+    operator.ConvertToBlender,
    operator.CopyDebugInformation,
    operator.CreateAllShapes,
    operator.CreateShapeFromStepId,
    operator.InspectFromObject,
    operator.InspectFromStepId,
+    operator.OverrideDisplayType,
    operator.ParseExpress,
    operator.PrintIfcFile,
    operator.PrintObjectPlacement,
    operator.ProfileImportIFC,
    operator.PurgeHdf5Cache,
    operator.PurgeIfcLinks,
-    operator.ConvertToBlender,
    operator.RewindInspector,
    operator.SelectExpressFile,
    operator.SelectHighPolygonMeshes,
    operator.SelectHighestPolygonMeshes,
    operator.ValidateIfcFile,
+    operator.PrintUnusedElementStats,
+    operator.PurgeUnusedElementsByClass,
    prop.BIMDebugProperties,
    ui.BIM_PT_debug,
 )
@@ -116,7 +116,7 @@ class PurgeIfcLinks(bpy.types.Operator):
        context.scene.BIMProperties.ifc_file = ""
        context.scene.BIMDebugProperties.attributes.clear()
        IfcStore.purge()
-        blenderbim.bim.handler.purge_module_data()
+        blenderbim.bim.handler.refresh_ui_data()
        return {"FINISHED"}


@@ -136,7 +136,7 @@ class ConvertToBlender(bpy.types.Operator):
            m.BIMMaterialProperties.ifc_style_id = False
        bpy.context.scene.BIMProperties.ifc_file = ""
        IfcStore.purge()
-        blenderbim.bim.handler.purge_module_data()
+        blenderbim.bim.handler.refresh_ui_data()
        return {"FINISHED"}


@@ -154,6 +154,8 @@ class ValidateIfcFile(bpy.types.Operator):
        logger = logging.getLogger("validate")
        logger.setLevel(logging.DEBUG)
        ifcopenshell.validate.validate(IfcStore.get_file(), logger, express_rules=True)
+
+        self.report({"INFO"}, "Check validation results in the system console.")
        return {"FINISHED"}


@@ -216,7 +218,7 @@ class CreateAllShapes(bpy.types.Operator):
                    len(shape.geometry.edges),
                    len(shape.geometry.faces),
                )
-        print(f"Failures: {len(failures)}")
+        self.report({"INFO"}, f"Failed shapes: {len(failures)}, check the system console for details.")
        for failure in failures:
            print(failure)
        return {"FINISHED"}
@@ -441,3 +443,55 @@ class PurgeHdf5Cache(bpy.types.Operator):
    def execute(self, context):
        core.purge_hdf5_cache(tool.Debug)
        return {"FINISHED"}
+
+
+class OverrideDisplayType(bpy.types.Operator):
+    bl_idname = "bim.override_display_type"
+    bl_label = "Override Display Type"
+    display: bpy.props.StringProperty()
+
+    def execute(self, context):
+        for obj in context.selected_objects:
+            obj.display_type = self.display
+        return {"FINISHED"}
+
+
+class PrintUnusedElementStats(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.print_unused_elements_stats"
+    bl_label = "Purge Unused Elements Stats"
+    bl_options = {"REGISTER", "UNDO"}
+    bl_description = (
+        "Print all unused elements in current IFC project in system console, not limited to the selected class"
+    )
+
+    ignore_contexts: bpy.props.BoolProperty(name="Ignore Contexts", default=True)
+    ignore_relationships: bpy.props.BoolProperty(name="Ignore Relationships", default=True)
+    ignore_types: bpy.props.BoolProperty(name="Ignore Types", default=True)
+
+    def _execute(self, context):
+        props = context.scene.BIMDebugProperties
+        # ignore some classes that could have zero 0 inverse references by their nature
+        ignore_classes = []
+        if self.ignore_contexts:
+            ignore_classes += ["IfcRepresentationContext"]
+        if self.ignore_relationships:
+            ignore_classes += ["IfcRelationship"]
+        if self.ignore_types:
+            ignore_classes += ["IfcTypeProduct"]
+
+        unused_elements = tool.Debug.print_unused_elements_stats(props.ifc_class_purge, ignore_classes)
+        self.report({"INFO"}, f"{unused_elements} unused elements found, check the system console for the details.")
+
+
+class PurgeUnusedElementsByClass(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.purge_unused_elements_by_class"
+    bl_label = "Purge Unused Elements By Class"
+    bl_description = (
+        "Will find all elements of class that have no inverse refernces and will remove them, use very carefully."
+    )
+    bl_options = {"REGISTER", "UNDO"}
+
+    def _execute(self, context):
+        props = context.scene.BIMDebugProperties
+        purged_elements = core.purge_unused_elements(tool.Ifc, tool.Debug, props.ifc_class_purge)
+        self.report({"INFO"}, f"{purged_elements} unused elements found and removed.")
@@ -40,3 +40,14 @@ class BIMDebugProperties(PropertyGroup):
    inverse_attributes: CollectionProperty(name="Inverse Attributes", type=Attribute)
    inverse_references: CollectionProperty(name="Inverse References", type=Attribute)
    express_file: StringProperty(name="Express File")
+    display_type: EnumProperty(
+        items=[
+            ("BOUNDS", "Bounds", ""),
+            ("WIRE", "Wire", ""),
+            ("SOLID", "Solid", ""),
+            ("TEXTURED", "Textured", ""),
+        ],
+        name="Display Type",
+        default="BOUNDS",
+    )
+    ifc_class_purge: StringProperty(name="Unused Elements IFC Class", default="")
@@ -83,6 +83,10 @@ class BIM_PT_debug(Panel):
        ).percentile = context.scene.BIMDebugProperties.percentile_of_polygons
        row.prop(props, "percentile_of_polygons", text="")

+        row = layout.split(factor=0.5, align=True)
+        row.prop(props, "display_type", text="")
+        row.operator("bim.override_display_type").display = context.scene.BIMDebugProperties.display_type
+
        if context.active_object and context.active_object.data:
            mprops = context.active_object.data.BIMMeshProperties
            row = layout.row()
@@ -22,6 +22,7 @@ import ifccsv
 import ifcopenshell
 import blenderbim.bim.handler
 import blenderbim.tool as tool
+from blenderbim.bim.ifc import IfcStore


 class SelectDiffJsonFile(bpy.types.Operator):
@@ -51,8 +52,27 @@ class VisualiseDiff(bpy.types.Operator):
            diff = json.load(file)
        for obj in context.visible_objects:
            obj.color = (1.0, 1.0, 1.0, 1.0)
-            element = tool.Ifc.get_entity(obj)
-            if not element:
+
+            if not obj.BIMObjectProperties.ifc_definition_id:
+                continue
+
+            ifc_file = ""
+            for scene in obj.users_scene:
+                if scene.BIMProperties.ifc_file:
+                    ifc_file = scene.BIMProperties.ifc_file
+                    if scene.library:
+                        break
+
+            if ifc_file:
+                if ifc_file not in IfcStore.session_files:
+                    IfcStore.session_files[ifc_file] = ifcopenshell.open(ifc_file)
+                element_file = IfcStore.session_files[ifc_file]
+            else:
+                element_file = ifc_file
+
+            try:
+                element = element_file.by_id(obj.BIMObjectProperties.ifc_definition_id)
+            except:
                continue
            global_id = getattr(element, "GlobalId", None)
            if not global_id:
@@ -29,7 +29,7 @@ class BIM_PT_documents(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_project_setup"
+    bl_parent_id = "BIM_PT_tab_project_setup"

    @classmethod
    def poll(cls, context):
@@ -92,10 +92,10 @@ classes = (
    prop.BIMTextProperties,
    prop.BIMAssignedProductProperties,
    prop.BIMAnnotationProperties,
-    ui.BIM_PT_camera,
-    ui.BIM_PT_drawing_underlay,
    ui.BIM_PT_sheets,
    ui.BIM_PT_drawings,
+    ui.BIM_PT_camera,
+    ui.BIM_PT_drawing_underlay,
    ui.BIM_PT_schedules,
    ui.BIM_PT_references,
    ui.BIM_PT_product_assignments,
@@ -16,11 +16,13 @@
 # You should have received a copy of the GNU General Public License
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.

-import bpy
 import os
-import blenderbim.tool as tool
-from mathutils import Vector
+import bpy
+import math
 import bmesh
+import blenderbim.tool as tool
+import ifcopenshell.util.element
+from mathutils import Vector, Matrix


 class Annotator:
@@ -90,6 +92,15 @@ class Annotator:

        return obj

+    @staticmethod
+    def add_vertex_to_annotation(obj):
+        verts_world_space = Annotator.get_placeholder_coords()
+        vert_local = obj.matrix_world.inverted() @ verts_world_space[0]
+        bm = tool.Blender.get_bmesh_for_mesh(obj.data, clean=True)
+        bm.verts.new(vert_local)
+        tool.Blender.apply_bmesh(obj.data, bm, obj)
+        return obj
+
    @staticmethod
    def add_plane_to_annotation(obj, remove_face=False):
        # default order = bot left, top left, bot right, top right
@@ -111,7 +122,7 @@ class Annotator:
    def get_annotation_obj(drawing, object_type, data_type):
        camera = tool.Ifc.get_object(drawing)
        co1, _, _, _ = Annotator.get_placeholder_coords(camera)
-        matrix_world = camera.matrix_world.copy()
+        matrix_world = tool.Drawing.get_camera_matrix(camera)
        matrix_world.translation = co1
        collection = camera.BIMObjectProperties.collection

@@ -142,6 +153,8 @@ class Annotator:
            data = bpy.data.curves.new(object_type, type="CURVE")
            data.dimensions = "3D"
            data.resolution_u = 2
+        elif data_type == "empty":
+            data = None

        obj = bpy.data.objects.new(object_type, data)
        obj.matrix_world = matrix_world
@@ -154,6 +167,13 @@ class Annotator:
            camera = bpy.context.scene.camera

        z_offset = camera.matrix_world.to_quaternion() @ Vector((0, 0, -1))
+
+        if (
+            ifcopenshell.util.element.get_pset(tool.Ifc.get_entity(camera), "EPset_Drawing", "TargetView")
+            == "REFLECTED_PLAN_VIEW"
+        ):
+            z_offset *= -1
+
        y = camera.data.ortho_scale / 4

        res_x = bpy.context.scene.render.resolution_x
@@ -166,6 +186,7 @@ class Annotator:

        center = camera.matrix_world.inverted() @ bpy.context.scene.cursor.location
        center.z = 0
+        center = camera.matrix_world @ center

        return (
            center + z_offset,
@@ -123,6 +123,8 @@ class DrawingsData:
                [(str(s.id()), s.Name or "Unnamed", "") for s in tool.Ifc.get().by_type("IfcBuildingStorey")]
            )
            return results
+        elif bpy.context.scene.DocProperties.target_view in ["MODEL_VIEW"]:
+            return [(h.upper(), h, "") for h in ["Orthographic", "Perspective"]]
        return [(h.upper(), h, "") for h in ["North", "South", "East", "West"]]

    @classmethod
@@ -52,23 +52,23 @@ class profile_consequential:
        cls.test_name = test_name

    @classmethod
-    def log(cls):
+    def log(cls, args=[]):
        if cls.start_time is not None:
-            cls.lines.append(f"{cls.test_name}\t{timer() - cls.start_time:.10f}")
+            args = "" if not args else "\t" + "\t".join(args)
+            cls.lines.append(f"{cls.test_name}\t{timer() - cls.start_time:.10f}{args}")

    @classmethod
    def stop(cls):
        cls.log()
        cls.start_time = None
-        print("\n".join(cls.lines))
+        lines = "\n".join(cls.lines)
+        print(lines)
+        import pyperclip
+
+        pyperclip.copy(lines)
        cls.lines = []


-def ccw(A, B, C):
-    """whether a-b-c located in counter-clockwise order in 2d space"""
-    return (C.y - A.y) * (B.x - A.x) > (B.y - A.y) * (C.x - A.x)
-
-
 def worldspace_to_winspace(verts, context):
    """Convert world space verts to window space"""
    region = context.region
@@ -248,8 +248,13 @@ class BaseDecorator:
        if check_mode and obj.data.is_editmode:
            return self.get_editmesh_geom(obj)

-        vertices = [obj.matrix_world @ v.co for v in obj.data.vertices]
-        indices = [e.vertices for e in obj.data.edges]
+        bm = bmesh.new()
+        bm.from_mesh(obj.data)
+        vertices = [obj.matrix_world @ v.co for v in bm.verts]
+        # In object mode, it's nicer to not show "internal edges". Most will be dissolved anyway.
+        indices = [[v.index for v in e.verts] for e in bm.edges if len(e.link_faces) != 2]
+        bm.free()
+
        return vertices, indices

    def get_editmesh_geom(self, obj):
@@ -520,7 +525,10 @@ class BaseDecorator:
            return matrix.inverted()[i].to_3d().normalized()

        text_dir_world_x_axis = get_basis_vector(obj.matrix_world)
-        text_dir = (camera.matrix_world.inverted().to_quaternion() @ text_dir_world_x_axis).to_2d().normalized()
+
+        camera_matrix = tool.Drawing.get_camera_matrix(camera)
+
+        text_dir = (camera_matrix.inverted().to_quaternion() @ text_dir_world_x_axis).to_2d().normalized()

        pos = location_3d_to_region_2d(region, region3d, text_world_position)
        props = obj.BIMTextProperties
@@ -742,7 +750,7 @@ class AngleDecorator(BaseDecorator):
                except ZeroDivisionError:
                    continue
                circle_angle = acos(cos_a)
-                counter_clockwise = ccw(v2, v1, v0)
+                counter_clockwise = tool.Cad.is_counter_clockwise_order(v2, v1, v0)
                angle_circle = get_angle_circle(circle_start, circle_angle, counter_clockwise)
                add_verts_sequence([v1 + v for v in angle_circle], start_i_arcs, **out_kwargs_arcs)

@@ -774,7 +782,7 @@ class AngleDecorator(BaseDecorator):
        region3d = context.region_data

        viewportDrawingScale = self.get_viewport_drawing_scale(context)
-        ANGLE_LABEL_OFFSET = 25 * viewportDrawingScale
+        ANGLE_LABEL_OFFSET = 20 * viewportDrawingScale
        last_segment_i = len(indices) - 1

        for edge_i, edge_vertices in enumerate(indices):
@@ -792,24 +800,24 @@ class AngleDecorator(BaseDecorator):
            edge1_ws = v2 - v1
            try:
                cos_a = edge0_ws.dot(edge1_ws) / (edge0_ws.length * edge1_ws.length)
+                angle_rad = acos(cos_a)
+                angle = angle_rad / pi * 180
            except ZeroDivisionError:
-                continue
-            circle_angle_rad = acos(cos_a)
-            circle_angle = circle_angle_rad / pi * 180
+                angle = 0

            # calculate angle position
-            p0 = location_3d_to_region_2d(region, region3d, v0)
-            p1 = location_3d_to_region_2d(region, region3d, v1)
-            p2 = location_3d_to_region_2d(region, region3d, v2)
+            p0, p1, p2 = [location_3d_to_region_2d(region, region3d, p) for p in vertices[i0 : i1 + 2]]
            edge0 = p0 - p1
            edge1 = p2 - p1
-            base_edge = edge0 if ccw(p0, p1, p2) else edge1
-            text_offset = (Matrix.Rotation(-circle_angle_rad / 2, 2) @ base_edge).normalized() * ANGLE_LABEL_OFFSET
+            radius = min(edge0.length_squared, edge1.length_squared) ** 0.5
+            # TODO: can be helpful for svg positioning
+            base_edge = edge0 if tool.Cad.is_counter_clockwise_order(p0, p1, p2) else edge1
+            text_offset = (Matrix.Rotation(-angle_rad / 2, 2) @ base_edge).normalized() * (radius + ANGLE_LABEL_OFFSET)
            label_position = p1 + text_offset

-            text = f"{int(circle_angle)}d"
+            text = f"{int(angle)}deg"
            label_dir = Vector((1, 0))
-            self.draw_label(context, text, label_position, label_dir)
+            self.draw_label(context, text, label_position, label_dir, box_alignment="center")


 class DiameterDecorator(DimensionDecorator):
@@ -1923,7 +1931,7 @@ class DecorationsHandler:
        if cls.installed:
            cls.uninstall()
        handler = cls()
-        # NOTE: we USE POST_PIXEL here so that we can draw use both 3D_POLYLINE_UNIFORM_COLOR
+        # NOTE: we USE POST_PIXEL here so that we can use both 3D_POLYLINE_UNIFORM_COLOR
        # and drawing text in the same handler. BUT this means that we supply coordinates in WINSPACE
        cls.installed = SpaceView3D.draw_handler_add(handler, (context,), "WINDOW", "POST_PIXEL")

@@ -1941,6 +1949,7 @@ class DecorationsHandler:
            self.decorators[object_type] = self.decorators["FALL"]

    def get_objects_and_decorators(self, collection):
+        # TODO: do it in data instead of the handler for performance?
        results = []

        for obj in collection.all_objects:
@@ -18,6 +18,7 @@

 import bpy
 import blenderbim.bim.module.drawing.decoration as decoration
+import blenderbim.tool as tool
 from bpy.app.handlers import persistent


@@ -37,10 +38,28 @@ def depsgraph_update_pre_handler(scene):
 def set_active_camera_resolution(scene):
    if not scene.camera or "/" not in scene.camera.name or not scene.DocProperties.drawings:
        return
+    props = scene.camera.data.BIMCameraProperties
+    ortho_scale = max((props.width, props.height))
+    aspect_ratio = props.width / props.height
    if (
-        scene.render.resolution_x != scene.camera.data.BIMCameraProperties.raster_x
-        or scene.render.resolution_y != scene.camera.data.BIMCameraProperties.raster_y
+        (scene.camera.data.ortho_scale != ortho_scale)
+        or (scene.render.resolution_x / scene.render.resolution_y != aspect_ratio)
    ):
-        scene.render.resolution_x = scene.camera.data.BIMCameraProperties.raster_x
-        scene.render.resolution_y = scene.camera.data.BIMCameraProperties.raster_y
+        scene.camera.data.ortho_scale = ortho_scale
+
+        diagram_scale = tool.Drawing.get_diagram_scale(scene.camera)
+        scale_ratio = tool.Drawing.get_scale_ratio(diagram_scale["Scale"])
+
+        if props.width > props.height:
+            aspect_ratio = props.height / props.width
+            raster_x = ortho_scale * scale_ratio * props.dpi / 0.0254
+            raster_y = ortho_scale * aspect_ratio * scale_ratio * props.dpi / 0.0254
+        else:
+            aspect_ratio = props.width / props.height
+            raster_x = ortho_scale * aspect_ratio * scale_ratio * props.dpi / 0.0254
+            raster_y = ortho_scale * scale_ratio * props.dpi / 0.0254
+
+        scene.render.resolution_x = scene.camera.data.BIMCameraProperties.raster_x = int(raster_x)
+        scene.render.resolution_y = scene.camera.data.BIMCameraProperties.raster_y = int(raster_y)
+
    current_drawing = scene.DocProperties.drawings[scene.DocProperties.current_drawing_index]
@@ -182,8 +182,12 @@ def format_distance(

        # Check values and compose string
        if inches == 12:
-            feet += 1
-            inches = 0
+            if unit_length == "INCHES":
+                inches = 12
+            if unit_length == "FEET":
+                feet += 1
+                inches = 0
+

        if not isArea:
            add_inches = bool(inches) or not suppress_zero_inches
@@ -26,7 +26,6 @@ import shutil
 import hashlib
 import shapely
 import subprocess
-import webbrowser
 import numpy as np
 import multiprocessing
 import ifcopenshell
@@ -70,15 +69,6 @@ class profile:
        print(self.task, timer() - self.start)


-def open_with_user_command(user_command, path):
-    if user_command:
-        commands = eval(user_command)
-        for command in commands:
-            subprocess.Popen(command)
-    else:
-        webbrowser.open("file://" + path)
-
-
 class Operator:
    def execute(self, context):
        IfcStore.execute_ifc_operator(self, context)
@@ -269,7 +259,7 @@ class CreateDrawing(bpy.types.Operator):
                with profile("Combine SVG layers"):
                    svg_path = self.combine_svgs(context, underlay_svg, linework_svg, annotation_svg)

-            open_with_user_command(context.preferences.addons["blenderbim"].preferences.svg_command, svg_path)
+            tool.Drawing.open_with_user_command(context.preferences.addons["blenderbim"].preferences.svg_command, svg_path)

        if self.print_all:
            bpy.ops.bim.activate_drawing(drawing=original_drawing_id, camera_view_point=False)
@@ -485,7 +475,7 @@ class CreateDrawing(bpy.types.Operator):

            drawing_elements = tool.Drawing.get_drawing_elements(self.camera_element)

-            self.setup_serialiser(ifc)
+            self.setup_serialiser(ifc, target_view)
            cache = IfcStore.get_cache()
            [cache.remove(guid) for guid in invalidated_guids]
            tree = ifcopenshell.geom.tree()
@@ -555,7 +545,7 @@ class CreateDrawing(bpy.types.Operator):

        if self.camera.data.BIMCameraProperties.calculate_shapely_surfaces:
            # shapely variant
-            group = root.findall(".//{http://www.w3.org/2000/svg}g")[0]
+            group = root.find("{http://www.w3.org/2000/svg}g")
            nm = group.attrib["{http://www.ifcopenshell.org/ns}name"]
            m4 = np.array(json.loads(group.attrib["{http://www.ifcopenshell.org/ns}plane"]))
            m3 = np.array(json.loads(group.attrib["{http://www.ifcopenshell.org/ns}matrix3"]))
@@ -566,10 +556,21 @@ class CreateDrawing(bpy.types.Operator):
            m44[1][3] = m3[1][2]
            m44 = np.linalg.inv(m44)

-            projections = group.findall('.//{http://www.w3.org/2000/svg}g[@class="projection"]') or []
+            elements_with_faces = set()
+            for element in drawing_elements.copy():
+                obj = tool.Ifc.get_object(element)
+                if obj and obj.type == "MESH" and len(obj.data.polygons):
+                    elements_with_faces.add(element.GlobalId)

+            projections = root.xpath(
+                ".//svg:g[contains(@class, 'projection')]", namespaces={"svg": "http://www.w3.org/2000/svg"}
+            )
+
+            boundary_lines = []
            for projection in projections:
-                boundary_lines = []
+                global_id = projection.attrib["{http://www.ifcopenshell.org/ns}guid"]
+                if global_id not in elements_with_faces:
+                    continue
                for path in projection.findall("./{http://www.w3.org/2000/svg}path"):
                    # Rounding is necessary to ensure coincident points are coincident
                    start, end = [[round(float(o), 1) for o in co[1:].split(",")] for co in path.attrib["d"].split()]
@@ -578,50 +579,55 @@ class CreateDrawing(bpy.types.Operator):
                    # Extension by 0.5mm is necessary to ensure lines overlap with other diagonal lines
                    start, end = tool.Drawing.extend_line(start, end, 0.5)
                    boundary_lines.append(shapely.LineString([start, end]))
-                unioned_boundaries = shapely.union_all(shapely.GeometryCollection(boundary_lines))
-                closed_polygons = shapely.polygonize(unioned_boundaries.geoms)

-                for polygon in closed_polygons.geoms:
-                    # Less than 1mm2 is not worth styling on sheet
-                    if polygon.area < 1:
-                        continue
-                    centroid = polygon.centroid
-                    internal_point = centroid if polygon.contains(centroid) else polygon.representative_point()
-                    if internal_point:
-                        internal_point = [internal_point.x, internal_point.y]
-                        a, b = self.drawing_to_model_co(m44, m4, internal_point, 0.0), self.drawing_to_model_co(
-                            m44, m4, internal_point, -100.0
-                        )
-                        inside_elements = [e for e in tree.select(self.pythonize(a)) if not e.is_a("IfcAnnotation")]
-                        if not inside_elements:
-                            elements = [
-                                e
-                                for e in tree.select_ray(self.pythonize(a), self.pythonize(b - a))
-                                if not e.instance.is_a("IfcAnnotation")
-                                and tool.Cad.is_point_on_edge(
-                                    Vector(list(e.position)), (Vector(self.pythonize(a)), Vector(self.pythonize(b)))
-                                )
-                            ]
-                            if elements:
-                                path = etree.Element("path")
-                                d = (
-                                    "M"
-                                    + " L".join(
-                                        [",".join([str(o) for o in co]) for co in polygon.exterior.coords[0:-1]]
-                                    )
+            unioned_boundaries = shapely.union_all(shapely.GeometryCollection(boundary_lines))
+            closed_polygons = shapely.polygonize(unioned_boundaries.geoms)
+
+            for polygon in closed_polygons.geoms:
+                # Less than 1mm2 is not worth styling on sheet
+                if polygon.area < 1:
+                    continue
+                centroid = polygon.centroid
+                internal_point = centroid if polygon.contains(centroid) else polygon.representative_point()
+                if internal_point:
+                    internal_point = [internal_point.x, internal_point.y]
+                    a, b = self.drawing_to_model_co(m44, m4, internal_point, 0.0), self.drawing_to_model_co(
+                        m44, m4, internal_point, -100.0
+                    )
+                    inside_elements = [e for e in tree.select(self.pythonize(a)) if not e.is_a("IfcAnnotation")]
+                    if not inside_elements:
+                        elements = [
+                            e
+                            for e in tree.select_ray(self.pythonize(a), self.pythonize(b - a))
+                            if not e.instance.is_a("IfcAnnotation")
+                            and tool.Cad.is_point_on_edge(
+                                Vector(list(e.position)), (Vector(self.pythonize(a)), Vector(self.pythonize(b)))
+                            )
+                        ]
+                        if elements:
+                            path = etree.Element("path")
+                            d = (
+                                "M"
+                                + " L".join([",".join([str(o) for o in co]) for co in polygon.exterior.coords[0:-1]])
+                                + " Z"
+                            )
+                            for interior in polygon.interiors:
+                                d += (
+                                    " M"
+                                    + " L".join([",".join([str(o) for o in co]) for co in interior.coords[0:-1]])
                                    + " Z"
                                )
-                                for interior in polygon.interiors:
-                                    d += (
-                                        " M"
-                                        + " L".join([",".join([str(o) for o in co]) for co in interior.coords[0:-1]])
-                                        + " Z"
-                                    )
-                                path.attrib["d"] = d
-                                classes = self.get_svg_classes(ifc.by_id(elements[0].instance.id()))
-                                classes.append("surface")
-                                path.set("class", " ".join(list(classes)))
-                                group.insert(0, path)
+                            path.attrib["d"] = d
+                            classes = self.get_svg_classes(ifc.by_id(elements[0].instance.id()))
+                            classes.append(f"intpoint-{internal_point}")
+                            classes.append(f"ab-{a}, {b}")
+                            for i, ray_result in enumerate(elements):
+                                classes.append(f"el{i}-{ray_result.instance.id()}")
+                                classes.append(f"el{i}-pos-{list(ray_result.position)}")
+                                classes.append(f"el{i}-dst-{ray_result.distance}")
+                            classes.append("surface")
+                            path.set("class", " ".join(list(classes)))
+                            group.insert(0, path)

        if self.camera.data.BIMCameraProperties.calculate_svgfill_surfaces:
            results = etree.tostring(root).decode("utf8")
@@ -636,7 +642,7 @@ class CreateDrawing(bpy.types.Operator):

            dom1 = parseString(svg_data_1)
            svg1 = dom1.childNodes[0]
-            groups1 = [g for g in yield_groups(svg1) if g.getAttribute("class") == "projection"]
+            groups1 = [g for g in yield_groups(svg1) if "projection" in g.getAttribute("class")]

            ls_groups = ifcopenshell.ifcopenshell_wrapper.svg_to_line_segments(results, "projection")

@@ -829,7 +835,7 @@ class CreateDrawing(bpy.types.Operator):

        return svg_path

-    def setup_serialiser(self, ifc):
+    def setup_serialiser(self, ifc, target_view):
        self.svg_settings = ifcopenshell.geom.settings(
            DISABLE_TRIANGULATION=True, STRICT_TOLERANCE=True, INCLUDE_CURVES=True
        )
@@ -840,7 +846,7 @@ class CreateDrawing(bpy.types.Operator):
        self.serialiser.setPolygonal(True)
        self.serialiser.setUseHlrPoly(True)
        # Objects with more than these edges are rendered as wireframe instead of HLR for optimisation
-        self.serialiser.setProfileThreshold(1000)
+        self.serialiser.setProfileThreshold(10000)
        self.serialiser.setUseNamespace(True)
        self.serialiser.setAlwaysProject(True)
        self.serialiser.setAutoElevation(False)
@@ -853,6 +859,10 @@ class CreateDrawing(bpy.types.Operator):
        self.serialiser.setScale(self.scale)
        self.serialiser.setSubtractionSettings(ifcopenshell.ifcopenshell_wrapper.ALWAYS)
        self.serialiser.setUsePrefiltering(True)  # See #3359
+        self.serialiser.setUnifyInputs(True)
+        self.serialiser.setSegmentProjection(True)
+        if target_view == "REFLECTED_PLAN_VIEW":
+            self.serialiser.setMirrorY(True)
        # tree = ifcopenshell.geom.tree()
        # This instructs the tree to explode BReps into faces and return
        # the style of the face when running tree.select_ray()
@@ -887,6 +897,21 @@ class CreateDrawing(bpy.types.Operator):
                )
        return classes

+    def is_manifold(self, obj):
+        result = self.is_manifold_cache.get(obj.data.name, None)
+        if result is not None:
+            return result
+
+        bm = bmesh.new()
+        bm.from_mesh(obj.data)
+        for edge in bm.edges:
+            if not edge.is_manifold:
+                bm.free()
+                self.is_manifold_cache[obj.data.name] = False
+                return False
+        self.is_manifold_cache[obj.data.name] = True
+        return True
+
    def merge_linework_and_add_metadata(self, root):
        join_criteria = ifcopenshell.util.element.get_pset(self.camera_element, "EPset_Drawing", "JoinCriteria")
        if join_criteria:
@@ -895,16 +920,27 @@ class CreateDrawing(bpy.types.Operator):
            # Drawing convention states that same objects classes with the same material are merged when cut.
            join_criteria = ["class", "material.Name", 'r"Pset.*Common"."Status"']

-        group = root.findall(".//{http://www.w3.org/2000/svg}g")[0]
+        group = root.find("{http://www.w3.org/2000/svg}g")
        joined_paths = {}
+        self.is_manifold_cache = {}

        ifc = tool.Ifc.get()
        for el in root.findall(".//{http://www.w3.org/2000/svg}g[@{http://www.ifcopenshell.org/ns}guid]"):
            element = ifc.by_guid(el.get("{http://www.ifcopenshell.org/ns}guid"))

-            classes = self.get_svg_classes(element)
-            classes.append("cut")
-            el.set("class", " ".join(classes))
+            if "projection" in el.get("class", "").split():
+                classes = self.get_svg_classes(element)
+                classes.append("projection")
+                el.set("class", " ".join(classes))
+                continue
+            else:
+                classes = self.get_svg_classes(element)
+                classes.append("cut")
+                el.set("class", " ".join(classes))
+
+            obj = tool.Ifc.get_object(element)
+            if not self.is_manifold(obj):
+                continue

            # An element group will contain a bunch of paths representing the
            # cut of that element. However IfcOpenShell may not correctly
@@ -1022,9 +1058,12 @@ class CreateDrawing(bpy.types.Operator):
        # IfcConvert puts the projection afterwards which is not correct since
        # projection should be drawn underneath the cut.
        group = root.find("{http://www.w3.org/2000/svg}g")
-        projection = group.find("{http://www.w3.org/2000/svg}g[@class='projection']")
-        projection.getparent().remove(projection)
-        group.insert(0, projection)
+        projections = root.xpath(
+            ".//svg:g[contains(@class, 'projection')]", namespaces={"svg": "http://www.w3.org/2000/svg"}
+        )
+        for projection in projections:
+            projection.getparent().remove(projection)
+            group.insert(0, projection)

    def generate_annotation(self, context):
        if not ifcopenshell.util.element.get_pset(self.drawing, "EPset_Drawing", "HasAnnotation"):
@@ -1035,7 +1074,9 @@ class CreateDrawing(bpy.types.Operator):

        elements = tool.Drawing.get_group_elements(tool.Drawing.get_drawing_group(self.camera_element))
        filtered_drawing_elements = tool.Drawing.get_drawing_elements(self.camera_element)
-        elements = [e for e in elements if e in filtered_drawing_elements]
+        filtered_drawing_annotations = {e for e in filtered_drawing_elements if e.is_a("IfcAnnotation")}
+        elements = {e for e in elements if e in filtered_drawing_elements}
+        elements = list(elements | filtered_drawing_annotations)

        annotations = sorted(
            elements, key=lambda a: (tool.Drawing.get_annotation_z_index(a), 1 if a.ObjectType == "TEXT" else 0)
@@ -1236,11 +1277,15 @@ class CreateSheets(bpy.types.Operator, Operator):

        # These variables will be made available to the evaluated commands
        svg = references["SHEET"]
-        basename = os.path.basename(svg)
-        path = os.path.dirname(svg)
        pdf = os.path.splitext(svg)[0] + ".pdf"
-        eps = os.path.splitext(svg)[0] + ".eps"
-        dxf = os.path.splitext(svg)[0] + ".dxf"
+        replacements = {
+            "svg": svg,
+            "basename": os.path.basename(svg),
+            "path": os.path.dirname(svg),
+            "pdf": pdf,
+            "eps": os.path.splitext(svg)[0] + ".eps",
+            "dxf": os.path.splitext(svg)[0] + ".dxf",
+        }

        has_sheet_reference = False
        for reference in tool.Drawing.get_document_references(sheet):
@@ -1273,22 +1318,23 @@ class CreateSheets(bpy.types.Operator, Operator):

        if svg2pdf_command:
            # With great power comes great responsibility. Example:
-            # [['inkscape', svg, '-o', pdf]]
-            commands = eval(svg2pdf_command)
+            # [["inkscape", "svg", "-o", "pdf"]]
+            commands = json.loads(svg2pdf_command)
            for command in commands:
-                subprocess.run(command)
+                subprocess.run([replacements.get(c, c) for c in command])

        if svg2dxf_command:
            # With great power comes great responsibility. Example:
-            # [['inkscape', svg, '-o', eps], ['pstoedit', '-dt', '-f', 'dxf:-polyaslines -mm', eps, dxf, '-psarg', '-dNOSAFER']]
-            commands = eval(svg2dxf_command)
+            # [["inkscape", "svg", "-o", "eps"], ["pstoedit", "-dt", "-f", "dxf:-polyaslines -mm", "eps", "dxf", "-psarg", "-dNOSAFER"]]
+            commands = json.loads(svg2dxf_command)
            for command in commands:
-                subprocess.run(command)
+                command[0] = shutil.which(command[0]) or command[0]
+                subprocess.run([replacements.get(c, c) for c in command])

        if svg2pdf_command:
-            open_with_user_command(context.preferences.addons["blenderbim"].preferences.pdf_command, pdf)
+            tool.Drawing.open_with_user_command(context.preferences.addons["blenderbim"].preferences.pdf_command, pdf)
        else:
-            open_with_user_command(context.preferences.addons["blenderbim"].preferences.svg_command, svg)
+            tool.Drawing.open_with_user_command(context.preferences.addons["blenderbim"].preferences.svg_command, svg)


 class SelectAllDrawings(bpy.types.Operator):
@@ -1355,7 +1401,9 @@ class OpenDrawing(bpy.types.Operator):
            return {"CANCELLED"}

        for drawing_uri in drawing_uris:
-            open_with_user_command(context.preferences.addons["blenderbim"].preferences.svg_command, drawing_uri)
+            tool.Drawing.open_with_user_command(
+                context.preferences.addons["blenderbim"].preferences.svg_command, drawing_uri
+            )
        return {"FINISHED"}


@@ -1391,6 +1439,7 @@ class ActivateModel(bpy.types.Operator):

            if view3d_context:
                bpy.ops.object.hide_view_clear(view3d_context)
+                bpy.ops.bim.activate_status_filters()

        subcontext = ifcopenshell.util.representation.get_context(tool.Ifc.get(), "Model", "Body", "MODEL_VIEW")

@@ -1512,11 +1561,17 @@ class RemoveDrawing(bpy.types.Operator, Operator):
                tool.Ifc.get().by_id(d.ifc_definition_id) for d in context.scene.DocProperties.drawings if d.is_selected
            ]
        else:
+            if not self.drawing:
+                self.report({"ERROR"}, "No drawing selected")
+                return {"CANCELLED"}
            drawings = [tool.Ifc.get().by_id(self.drawing)]

        removed_drawings = [drawing.id() for drawing in drawings]

        for drawing in drawings:
+            sheet_references = tool.Drawing.get_sheet_references(drawing)
+            for reference in sheet_references:
+                bpy.ops.bim.remove_drawing_from_sheet(reference=reference.id())
            core.remove_drawing(tool.Ifc, tool.Drawing, drawing=drawing)


@@ -1862,7 +1917,7 @@ class RemoveSchedule(bpy.types.Operator, Operator):
    schedule: bpy.props.IntProperty()

    def _execute(self, context):
-        core.remove_document(tool.Ifc, tool.Drawing, "SCHEDULE", schedule=tool.Ifc.get().by_id(self.schedule))
+        core.remove_document(tool.Ifc, tool.Drawing, "SCHEDULE", document=tool.Ifc.get().by_id(self.schedule))


 class OpenSchedule(bpy.types.Operator, Operator):
@@ -312,7 +312,6 @@ class DocProperties(PropertyGroup):
    should_use_underlay_cache: BoolProperty(name="Use Underlay Cache", default=False)
    should_use_linework_cache: BoolProperty(name="Use Linework Cache", default=False)
    should_use_annotation_cache: BoolProperty(name="Use Annotation Cache", default=False)
-    should_extract: BoolProperty(name="Should Extract", default=True)
    is_editing_drawings: BoolProperty(name="Is Editing Drawings", default=False)
    is_editing_schedules: BoolProperty(name="Is Editing Schedules", default=False)
    is_editing_references: BoolProperty(name="Is Editing References", default=False)
@@ -375,6 +374,9 @@ class BIMCameraProperties(PropertyGroup):
    custom_scale_denominator: bpy.props.StringProperty(default="100", update=update_diagram_scale)
    raster_x: IntProperty(name="Raster X", default=1000)
    raster_y: IntProperty(name="Raster Y", default=1000)
+    dpi: IntProperty(name="DPI", default=75)
+    width: FloatProperty(name="Width", default=50, subtype="DISTANCE")
+    height: FloatProperty(name="Height", default=50, subtype="DISTANCE")
    is_nts: BoolProperty(name="Is NTS", update=update_is_nts)
    active_drawing_style_index: IntProperty(name="Active Drawing Style Index")

@@ -502,6 +504,8 @@ ANNOTATION_TYPES_DATA = {
    "PLAN_LEVEL":    ("Level (Plan)",     "", "SORTBYEXT", "curve"),
    "SECTION_LEVEL": ("Level (Section)",  "", "TRIA_DOWN", "curve"),
    "BREAKLINE":     ("Breakline",        "", "FCURVE", "mesh"),
+    "SYMBOL":        ("Symbol",           "", "KEYFRAME", "empty"),
+    "MULTI_SYMBOL":  ("Multi-Symbol",     "", "OUTLINER_DATA_POINTCLOUD", "mesh"),
    "LINEWORK":      ("Line",             "", "SNAP_MIDPOINT", "mesh"),
    "BATTING":       ("Batting",          "Add batting annotation.\nThickness could be changed through Thickness property of BBIM_Batting property set", "FORCE_FORCE", "mesh"),
    "REVISION_CLOUD":("Revision Cloud",   "Add revision cloud", "VOLUME_DATA", "mesh"),
@@ -538,7 +542,7 @@ class BIMAnnotationProperties(PropertyGroup):
        name="Create Representation For Type",
        default=False,
        description='Whether "Add type" should define a representation for the type \n'
-        "or allow occurences to have their own",
+        "or allow occurrences to have their own",
    )
    is_adding_type: bpy.props.BoolProperty(default=False)
    type_name: bpy.props.StringProperty(name="Name", default="TYPEX")
@@ -118,6 +118,25 @@ class Scheduler:
            if cell_style:
                related_styles.append((style_name, cell_style))

+        # sometimes there are no column styles (e.g. in ODS from IfcCSV)
+        # and we just use some constant number for column widths
+        if not column_widths:
+            row_columns = []
+            for tr in table.getElementsByType(TableRow):
+                row_cols = 0
+                for td in tr.getElementsByType(TableCell):
+                    column_span = td.getAttribute("numbercolumnsspanned")
+                    column_span = int(column_span) if column_span else 1
+
+                    col_repeat = td.getAttribute("numbercolumnsrepeated")
+                    col_repeat = int(col_repeat) if col_repeat else 1
+                    row_cols += column_span * col_repeat
+                row_columns.append(row_cols)
+
+            n_columns = max(row_columns)
+            column_widths = [25] * n_columns  # some constant width value 👀
+            column_styles = [None] * n_columns
+
        # collect rows height
        row_heights = []
        # TODO: never used yet because unsure about priority for row styles
@@ -351,7 +370,7 @@ class Scheduler:
            wrap_text: if True, text will be wrapped to fit in cell
            cell_width: width of cell, used for wrapping text
        """
-        text_lines = [str(p).upper() for p in p_tags]
+        text_lines = [str(p) for p in p_tags]
        box_alignment_params = SvgWriter.get_box_alignment_parameters(box_alignment)
        text_params = {
            "font-size": font_size,
@@ -383,12 +402,27 @@ class Scheduler:
        else:
            wrapped_lines = text_lines

-        for line_number, text_line in enumerate(wrapped_lines[::-1]):
+        if box_alignment.startswith("top"):
+            dy_dir = 1
+            line_number = 0
+        elif box_alignment.startswith("bot"):
+            dy_dir = -1
+            line_number = 0
+        else:  # middle row
+            # the idea is that the middle row should always stay in the center
+            # e.g. dy offset for 3 lines is: 1, 0, -1
+            #                for 2 lines:    0.5, -0.5
+            dy_dir = -1
+            line_number = (len(wrapped_lines) - 1) / 2
+
+        for text_line in wrapped_lines[::dy_dir]:
            # position has to be inserted at tspan to avoid x offset between tspans
            tspan = self.svg.tspan(text_line, insert=(x, y), **text_params)
            # doing it here and not in tspan constructor because constructor adds unnecessary spaces
-            tspan.update({"dy": f"-{line_number}em"})
+            tspan.update({"dy": f"{line_number}em"})
            text_tag.add(tspan)
+            line_number += dy_dir
+
        self.svg.add(text_tag)

    def convert_to_mm(self, value):
@@ -160,7 +160,8 @@ class SheetBuilder:
                x = float(image.attrib["x"])
                y = float(image.attrib["y"])
                if image.attrib["data-type"] == "view-title":
-                    image.attrib["x"] = str(x - readjust.x)
+                    image.attrib["x"] = str(x + readjust.x)
+                    # negate y offset because view-title comes AFTER foreground
                    image.attrib["y"] = str(y - readjust.y)
                else:
                    image.attrib["x"] = str(x + readjust.x)
@@ -174,6 +175,8 @@ class SheetBuilder:
        ET.register_namespace("", "http://www.w3.org/2000/svg")

        layout_path = tool.Drawing.get_document_uri(sheet, "LAYOUT")
+        if not os.path.exists(layout_path):
+            return
        layout_tree = ET.parse(layout_path)
        layout_root = layout_tree.getroot()

@@ -343,8 +346,12 @@ class SheetBuilder:
    def build_drawings(self, root, sheet):
        for view in root.findall('{http://www.w3.org/2000/svg}g[@data-type="drawing"]'):
            drawing_id = int(view.attrib["data-id"])
-            reference = tool.Ifc.get().by_id(int(view.attrib["data-id"]))
-            drawing = tool.Ifc.get().by_id(view.attrib["data-drawing"])
+            try:
+                reference = tool.Ifc.get().by_id(int(view.attrib["data-id"]))
+                drawing = tool.Ifc.get().by_id(view.attrib["data-drawing"])
+            except:
+                # Perhaps the SVG has outdated content or is edited externally which we cannot control.
+                continue

            images = view.findall("{http://www.w3.org/2000/svg}image")

@@ -385,8 +392,12 @@ class SheetBuilder:

    def build_schedules(self, root, sheet):
        for view in root.findall('{http://www.w3.org/2000/svg}g[@data-type="schedule"]'):
-            reference = tool.Ifc.get().by_id(int(view.attrib["data-id"]))
-            schedule = tool.Ifc.get().by_id(int(view.attrib["data-schedule"]))
+            try:
+                reference = tool.Ifc.get().by_id(int(view.attrib["data-id"]))
+                schedule = tool.Ifc.get().by_id(int(view.attrib["data-schedule"]))
+            except:
+                # Perhaps the SVG has outdated content or is edited externally which we cannot control.
+                continue

            images = view.findall("{http://www.w3.org/2000/svg}image")

@@ -414,7 +425,7 @@ class SheetBuilder:
                view.remove(image)

    def get_href(self, element):
-        return urllib.parse.unquote(element.attrib.get("{http://www.w3.org/1999/xlink}href"))
+        return urllib.parse.unquote(element.attrib.get("{http://www.w3.org/1999/xlink}href")).replace('\\','/')

    def parse_embedded_svg(self, image, data):
        group = ET.Element("g")
@@ -36,7 +36,7 @@ import blenderbim.bim.module.drawing.annotation as annotation
 from blenderbim.bim.module.drawing.data import DecoratorData
 from blenderbim.bim.ifc import IfcStore

-from math import pi, ceil, atan, degrees
+from math import pi, ceil, atan, degrees, acos
 from mathutils import geometry, Vector
 from bpy_extras import view3d_utils

@@ -326,11 +326,12 @@ class SvgWriter:
        # We have to decide whether this should come from Blender or from IFC.
        # For the moment, for convenience of experimenting with ideas, it comes
        # from Blender. In the future, it should probably come from IFC.
-        if not isinstance(obj.data, bpy.types.Mesh):
-            return
-
        classes = self.get_attribute_classes(obj)
-        if len(obj.data.vertices) and not len(obj.data.edges):
+        if obj.data is None:
+            return self.draw_empty_annotation(obj, classes)
+        elif not isinstance(obj.data, bpy.types.Mesh):
+            return
+        elif len(obj.data.vertices) and not len(obj.data.edges):
            return self.draw_point_annotation(obj, classes)
        elif len(obj.data.polygons) == 0:
            return self.draw_edge_annotation(obj, classes)
@@ -774,6 +775,18 @@ class SvgWriter:
            "text-anchor": text_anchor,
        }

+    def add_fill_bg(self, element, copy=True):
+        if copy:
+            element = element.copy()
+        if hasattr(element, "xml"):
+            attrib = element.xml.attrib
+        elif isinstance(element, ET.Element):
+            attrib = element.attrib
+        else:  # assuming it's svgwrite.base.BaseElement
+            attrib = element.attribs
+        attrib["filter"] = "url(#fill-background)"
+        return element
+
    def draw_text_annotation(self, text_obj, position):
        x_offset = self.raw_width / 2
        y_offset = self.raw_height / 2
@@ -791,20 +804,21 @@ class SvgWriter:
            return matrix.inverted()[i].to_3d().normalized()

        text_dir_world_x_axis = get_basis_vector(text_obj.matrix_world)
-        text_dir = (self.camera.matrix_world.inverted().to_quaternion() @ text_dir_world_x_axis).to_2d().normalized()
+
+        # RCP cameras may be scaled, so reset scales.
+        camera_matrix = tool.Drawing.get_camera_matrix(self.camera)
+        text_dir = (camera_matrix.inverted().to_quaternion() @ text_dir_world_x_axis).to_2d().normalized()
        angle = math.degrees(-text_dir.angle_signed(Vector((1, 0))))

        classes = self.get_attribute_classes(text_obj)
        classes_str = " ".join(classes)
+        fill_bg = "fill-bg" in classes

        symbol = tool.Drawing.get_annotation_symbol(element)
        template_text_fields = []
-        if not symbol:
-            text_transform = f"translate({text_position_svg_str}) rotate({angle})"
-        else:
+        if symbol:
            # NOTE: for now we assume that scale is uniform
            symbol_transform = f"translate({text_position_svg_str}) rotate({angle}) scale({text_obj.scale.x})"
-            text_transform = symbol_transform

            symbol_svg = self.find_xml_symbol_by_id(symbol)
            if symbol_svg:
@@ -815,10 +829,20 @@ class SvgWriter:
                if template_text_fields:
                    symbol_xml.attrib["transform"] = symbol_transform
                    symbol_xml.attrib.pop("id")
-                    # note: zip makes sure that we iterate over the shortest list
+                    # NOTE: zip makes sure that we iterate over the shortest list
                    for field, text_literal in zip(template_text_fields, text_literals):
-                        field.text = tool.Drawing.replace_text_literal_variables(text_literal.Literal, product)
+                        field.text = tool.Drawing.replace_text_literal_variables(
+                            text_literal.Literal, product or element
+                        )
                        field.attrib["class"] = classes_str
+
+                    if fill_bg:
+                        symbol_copied = symbol_svg.copy()
+                        for text_tag in symbol_copied.xml.findall("text"):
+                            self.add_fill_bg(text_tag, copy=False)
+                        # NOTE: in case we'll later need to add fill-bg for the entire symbol:
+                        # self.add_fill_bg(symbol_svg, copy=False)
+                        self.svg.add(symbol_copied)
                    self.svg.add(symbol_svg)
                    return None

@@ -827,20 +851,40 @@ class SvgWriter:

        line_number = 0
        for text_literal in text_literals:
-            text = tool.Drawing.replace_text_literal_variables(text_literal.Literal, product)
+            text = tool.Drawing.replace_text_literal_variables(text_literal.Literal, product or element)
            text_tags = self.create_text_tag(
                text,
                text_position_svg,
                angle,
                text_literal.BoxAlignment,
                classes_str,
-                fill_bg="fill-bg" in classes,
+                fill_bg=fill_bg,
                line_number_start=line_number,
            )
            for tag in text_tags:
                self.svg.add(tag)
            line_number += len(tag.elements)

+    def draw_empty_annotation(self, obj, classes):
+        x_offset = self.raw_width / 2
+        y_offset = self.raw_height / 2
+
+        point = self.project_point_onto_camera(obj.matrix_world.translation)
+
+        element = tool.Ifc.get_entity(obj)
+        svg_id = ifcopenshell.util.element.get_pset(element, "EPset_Annotation", "Symbol")
+        if not svg_id:
+            # EPset_AnnotationSurveyArea is not standard! See bSI-4.3 proposal #660.
+            svg_id = ifcopenshell.util.element.get_pset(element, "EPset_AnnotationSurveyArea", "PointType")
+        if not svg_id:
+            svg_id = str(ifcopenshell.util.element.get_predefined_type(element))
+        if not svg_id:
+            return
+
+        point = Vector(((x_offset + point.x), (y_offset - point.y)))
+        symbol_position_svg = point * self.svg_scale
+        self.svg.add(self.svg.use(f"#{svg_id}", insert=symbol_position_svg))
+
    def draw_point_annotation(self, obj, classes):
        x_offset = self.raw_width / 2
        y_offset = self.raw_height / 2
@@ -849,12 +893,14 @@ class SvgWriter:
        projected_points = [self.project_point_onto_camera(matrix_world @ v.co) for v in obj.data.vertices]

        element = tool.Ifc.get_entity(obj)
-        svg_id = str(ifcopenshell.util.element.get_predefined_type(element))
-
-        # EPset_AnnotationSurveyArea is not standard! See bSI-4.3 proposal #660.
-        point_type = ifcopenshell.util.element.get_pset(element, "EPset_AnnotationSurveyArea", "PointType")
-        if point_type:
-            svg_id += f"-{point_type}"
+        svg_id = ifcopenshell.util.element.get_pset(element, "EPset_Annotation", "Symbol")
+        if not svg_id:
+            # EPset_AnnotationSurveyArea is not standard! See bSI-4.3 proposal #660.
+            svg_id = ifcopenshell.util.element.get_pset(element, "EPset_AnnotationSurveyArea", "PointType")
+        if not svg_id:
+            svg_id = str(ifcopenshell.util.element.get_predefined_type(element))
+        if not svg_id:
+            return

        for symbol_position in projected_points:
            symbol_position = Vector(((x_offset + symbol_position.x), (y_offset - symbol_position.y)))
@@ -936,54 +982,54 @@ class SvgWriter:

    def draw_angle_annotations(self, obj):
        points = obj.data.splines[0].points
-        region = bpy.context.region
-        area = tool.Blender.get_viewport_context()["area"]
-        region_3d = area.spaces.active.region_3d
+        # [1, 2, 3, 4, 5] -> [[1, 2, 3], [2, 3, 4], [3, 4, 5]]
        points_chunked = [points[i : i + 3] for i in range(len(points) - 2)]

        for points_chunk in points_chunked:
-            points_2d = [view3d_utils.location_3d_to_region_2d(region, region_3d, p.co.xyz) for p in points_chunk]
+            points_chunk = [obj.matrix_world @ p.co.xyz for p in points_chunk]
+            self.draw_svg_3point_arc(obj, points_chunk)

-            edge0 = points_2d[0] - points_2d[1]
-            edge1 = points_2d[2] - points_2d[1]
-            angle_radius = min(edge0.length, edge1.length)
-            dir0 = edge0.normalized()
-            dir1 = edge1.normalized()
-            dir2 = ((dir0 + dir1) / 2).normalized()
-
-            # calculate p3 which is the center of the arc
-            # to use draw_svg_3point_arc()
-            p3 = points_2d[1] + dir2 * angle_radius
-
-            # make all edges the same radius
-            p0 = points_2d[1] + dir0 * angle_radius
-            p2 = points_2d[1] + dir1 * angle_radius
-            points_chunk = [view3d_utils.region_2d_to_origin_3d(region, region_3d, p) for p in [p0, p3, p2]]
-            # points = [p.co.xyz for p in bpy.context.active_object.data.splines[0].points[:3]]
-
-            bm = bmesh.new()
-            bm.verts.index_update()
-            bm.edges.index_update()
-            new_verts = [bm.verts.new(p) for p in points_chunk]
-            new_edges = [bm.edges.new((new_verts[e[0]], new_verts[e[1]])) for e in ((0, 1), (1, 2))]
-            self.draw_svg_3point_arc(obj, bm)
-
-    def draw_svg_3point_arc(self, obj, bm):
+    def draw_svg_3point_arc(self, obj, angle_points):
+        """`angle_points` are expected to be already in world space"""
        # This implementation uses an SVG arc, which means that it can only draw
        # arcs that are orthogonal to the view (e.g. not arcs in 3D).
        # Gosh this is bad code :(

-        points = [v.co for v in bm.verts][:3]
-        center = tool.Cad.get_center_of_arc(points, obj)
-        classes = self.get_attribute_classes(obj)
-        matrix_world = obj.matrix_world
-        x_offset = self.raw_width / 2
-        y_offset = self.raw_height / 2
-        bm.verts.ensure_lookup_table()
-        arc_end_verts = [v for v in bm.verts if len(v.link_edges) == 1]
-        arc_end_pts = [matrix_world @ v.co for v in arc_end_verts]
+        def position_on_svg(p):
+            p = self.project_point_onto_camera(p)
+            offset = Vector([self.raw_width / 2, self.raw_height / 2])
+            return (offset + p.xy * Vector((1, -1))) * self.svg_scale

-        # Probably need this when rewriting to use an SVG polyline instead of an arc
+        def get_angle_value():
+            """points should be in world space"""
+            # calculate arc angle, need to make sure we do it in world space
+            v0, v1, v2 = angle_points
+            edge0_ws = v0 - v1
+            edge1_ws = v2 - v1
+            try:
+                cos_a = edge0_ws.dot(edge1_ws) / (edge0_ws.length * edge1_ws.length)
+                angle_rad = acos(cos_a)
+                angle = angle_rad / pi * 180
+            except ZeroDivisionError:
+                angle = 0
+            return angle
+
+        angle = get_angle_value()
+        angle_points = [position_on_svg(p) for p in angle_points]
+
+        # creating arc and making sure radius is consistent across the arc
+        edge0 = angle_points[0] - angle_points[1]
+        edge1 = angle_points[2] - angle_points[1]
+        angle_radius = min(edge0.length, edge1.length)
+        dir0 = edge0.normalized()
+        dir1 = edge1.normalized()
+        arc_mid_dir = ((dir0 + dir1) / 2).normalized()
+        arc_points = [angle_points[1] + direction * angle_radius for direction in [dir0, arc_mid_dir, dir1]]
+
+        arc_end_pts = [arc_points[0], arc_points[2]]
+        arc_mid_point = arc_points[1]
+
+        # The commented code below can be useful when we start using SVG polyline instead of an arc
        # arc_path = [arc_end_verts[0]]
        # while True:
        #    last_point = arc_end_verts[0]
@@ -996,79 +1042,44 @@ class SvgWriter:
        #    if not found_another_point:
        #        break

-        distance_between_end_verts = (arc_end_verts[0].co - arc_end_verts[1].co).length
-        arc_mid_vert = arc_end_verts[0].link_edges[0].other_vert(arc_end_verts[0])
-        is_reflex = 0 if (arc_mid_vert.co - arc_end_verts[1].co).length < distance_between_end_verts else 1
-
-        bm.free()
-
        # Calculate the angle
        # This is the true normal in 3D, whereas the camera projection we use is the drawing direction.
        # This assumes (because we use SVG arcs) that the radius is always orthogonal to our view.
        # When rewriting to use polylines, we should use this normal instead.
+        # center = tool.Cad.get_center_of_arc([p.to_3d() for p in arc_points], None).to_2d()
        # normal = mathutils.geometry.normal([arc_end_pts[0], arc_end_pts[1], center])
-        normal = Vector(self.camera_projection)
-        dir1 = (arc_end_pts[0] - center).normalized()
-        dir2 = (arc_end_pts[1] - center).normalized()
+        # normal = Vector(self.camera_projection)
+        # dir1 = (arc_end_pts[0] - center).normalized()
+        # arc_mid_dir = (arc_end_pts[1] - center).normalized()

        # Let's get the matrix that represents the coordinate system of the arc.
        # This matrix allows us to get 2D vectors for calculating the signed arc angle.
-        z = normal
-        x = (arc_end_pts[0] - center).normalized()
-        y = z.cross(x)
-        arc_matrix = mathutils.Matrix([x, y, z]).transposed().to_4x4()
+        # z = normal
+        # x = (arc_end_pts[0] - center).normalized()
+        # y = z.cross(x)
+        # arc_matrix = mathutils.Matrix([x, y, z]).transposed().to_4x4()

-        dir1 = ((arc_matrix.inverted() @ arc_end_pts[0]) - (arc_matrix.inverted() @ center)).normalized()
-        dir2 = ((arc_matrix.inverted() @ arc_end_pts[1]) - (arc_matrix.inverted() @ center)).normalized()
-        angle = -dir1.xy.angle_signed(dir2.xy)
-
-        # if is_reflex:
-        #    angle = angle % (math.pi * 2)
-
-        # Center of gravity of all vertices, used to help position the text
-        cog = Vector((0, 0, 0))
-        for point in points:
-            cog += point
-        cog = matrix_world @ (cog / len(points))
-
-        radius = ((matrix_world @ points[0]) - center).length
-
-        arc_midpoint = center + ((cog - center).normalized() * radius)
-
-        text_position = self.project_point_onto_camera(arc_midpoint)
-        text_position = Vector(
-            ((x_offset + text_position.x) * self.svg_scale, (y_offset - text_position.y) * self.svg_scale)
-        )
-
-        center_projected = self.project_point_onto_camera(center)
-        center_position = Vector(
-            ((x_offset + center_projected.x) * self.svg_scale, (y_offset - center_projected.y) * self.svg_scale)
-        )
-        text_offset = (text_position - center_position).xy.normalized() * 5
-        text_position += text_offset
+        # dir1 = ((arc_matrix.inverted() @ arc_end_pts[0]) - (arc_matrix.inverted() @ center)).normalized()
+        # dir2 = ((arc_matrix.inverted() @ arc_end_pts[1]) - (arc_matrix.inverted() @ center)).normalized()
+        # angle = -dir1.xy.angle_signed(dir2.xy)

+        # calculating text parameters and adding text
+        text_position = arc_mid_point + arc_mid_dir * 5
        text_style = SvgWriter.get_box_alignment_parameters("center")
-        angle_text = abs(round(math.degrees(angle), 3))
-        if is_reflex:
-            angle_text = 360 - angle_text
-        self.svg.add(self.svg.text(f"{angle_text}deg", insert=tuple(text_position), class_="ANGLE", **text_style))
+        angle_text = f"{int(angle)}deg"
+        self.svg.add(self.svg.text(angle_text, insert=text_position, class_="ANGLE", **text_style))

        # Draw SVG arc, see for details: http://xahlee.info/js/svg_circle_arc.html
-        arc_proj_end_pts = [self.project_point_onto_camera(v) for v in arc_end_pts]
-        p1 = Vector(
-            ((x_offset + arc_proj_end_pts[0].x) * self.svg_scale, (y_offset - arc_proj_end_pts[0].y) * self.svg_scale)
-        )
-        p2 = Vector(
-            ((x_offset + arc_proj_end_pts[1].x) * self.svg_scale, (y_offset - arc_proj_end_pts[1].y) * self.svg_scale)
-        )
-        r = radius * self.svg_scale
-        # reflex = 1 if angle > math.pi else 0
-        reflex = is_reflex
-        if reflex:
-            sense = 0 if angle > 0 else 1
-        else:
-            sense = 1 if angle > 0 else 0
+        p1, p2 = arc_end_pts
+        r = angle_radius
+        # reflex: 0 => arc < 180 degrees
+        #         1 => arc > 180 degrees
+        reflex = int(angle > 180)
+        # sense:  0 => moving at negative angles
+        #         1 => moving at positive angles
+        sense = int(tool.Cad.is_counter_clockwise_order(*arc_points))
        d = f"M {p1.x} {p1.y} A {r} {r} 0 {reflex} {sense} {p2.x} {p2.y}"
+        classes = self.get_attribute_classes(obj)
        path = self.svg.add(self.svg.path(d=d, class_=" ".join(classes)))

    def draw_radius_annotations(self, obj):
@@ -1344,18 +1355,10 @@ class SvgWriter:
        multiline_to_bottom=True,
        fill_bg=False,
        line_number_start=0,
-        _draw_fill_bg=False,
    ):
        """returns list of created text tags"""
        text_tags = []
-        if fill_bg:
-            method_kwargs = locals() | {"_draw_fill_bg": True, "fill_bg": False}
-            del method_kwargs["self"]
-            del method_kwargs["text_tags"]
-            text_tags += self.create_text_tag(**method_kwargs)
-
        base_text_attrs = SvgWriter.get_box_alignment_parameters(box_alignment)
-        base_text_attrs = base_text_attrs | ({"filter": "url(#fill-background)"} if _draw_fill_bg else {})

        if not multiline:
            transform_kwargs = {"transform": "rotate({} {} {})".format(angle, text_position.x, text_position.y)}
@@ -1392,6 +1395,11 @@ class SvgWriter:
            # doing it here and not in tspan constructor because constructor adds unnecessary spaces
            tspan.update({"dy": f"{line_number if multiline_to_bottom else -line_number}em"})
            text_tag.add(tspan)
+
+        if fill_bg:
+            fill_bg_tags = [self.add_fill_bg(text_tag) for text_tag in text_tags]
+            text_tags = fill_bg_tags + text_tags
+
        return text_tags

    def project_point_onto_camera(self, point):
@@ -31,28 +31,28 @@ from blenderbim.bim.module.drawing.prop import ANNOTATION_TYPES_DATA


 class BIM_PT_camera(Panel):
-    bl_label = "Drawing Generation"
+    bl_label = "Active Drawing"
    bl_idname = "BIM_PT_camera"
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
-    bl_context = "data"
-
-    @classmethod
-    def poll(cls, context):
-        return context.camera and hasattr(context.active_object.data, "BIMCameraProperties")
+    bl_context = "scene"
+    bl_parent_id = "BIM_PT_tab_drawings"

    def draw(self, context):
-        layout = self.layout
-
-        if "/" not in context.active_object.name:
-            layout.label(text="This is not a BIM camera.")
+        if not (context.scene.camera and hasattr(context.scene.camera.data, "BIMCameraProperties")):
+            row = self.layout.row()
+            row.label(text="No Active Drawing", icon="ERROR")
            return

-        layout.use_property_split = True
-        dprops = context.scene.DocProperties
-        props = context.active_object.data.BIMCameraProperties
+        if "/" not in context.scene.camera.name:
+            self.layout.label(text="This is not a BIM camera.")
+            return

-        col = layout.column(align=True)
+        self.layout.use_property_split = True
+        dprops = context.scene.DocProperties
+        props = context.scene.camera.data.BIMCameraProperties
+
+        col = self.layout.column(align=True)
        row = col.row(align=True)
        row.prop(props, "has_underlay", icon="OUTLINER_OB_IMAGE")
        row.prop(dprops, "should_use_underlay_cache", text="", icon="FILE_REFRESH")
@@ -63,32 +63,36 @@ class BIM_PT_camera(Panel):
        row.prop(props, "has_annotation", icon="MOD_EDGESPLIT")
        row.prop(dprops, "should_use_annotation_cache", text="", icon="FILE_REFRESH")

-        row = layout.row()
+        row = self.layout.row()
        row.prop(props, "calculate_shapely_surfaces")
-        row = layout.row()
+        row = self.layout.row()
        row.prop(props, "calculate_svgfill_surfaces")

-        row = layout.row()
-        row.prop(dprops, "should_extract")
+        row = self.layout.row()
+        row.prop(props, "width")
+        row = self.layout.row()
+        row.prop(props, "height")

-        row = layout.row()
-        row.prop(props, "raster_x")
-        row = layout.row()
-        row.prop(props, "raster_y")
+        row = self.layout.row()
+        row.prop(context.scene.camera.data, "clip_end", text="Depth")

-        row = layout.row(align=True)
-        row.prop(props, "diagram_scale")
+        row = self.layout.row(align=True)
+        row.prop(props, "diagram_scale", text="Scale")
        row.prop(props, "is_nts", text="", icon="MOD_EDGESPLIT")

        if props.diagram_scale == "CUSTOM":
-            row = layout.row(align=True)
+            row = self.layout.row(align=True)
            row.prop(props, "custom_scale_numerator", text="Custom Scale")
            row.prop(props, "custom_scale_denominator", text="")

-        row = layout.row(align=True)
+        if props.has_underlay:
+            row = self.layout.row()
+            row.prop(props, "dpi")
+
+        row = self.layout.row(align=True)
        row.operator("bim.create_drawing", text="Create Drawing", icon="OUTPUT")
        op = row.operator("bim.open_drawing", icon="URL", text="")
-        op.view = context.active_object.name.split("/")[1]
+        op.view = context.scene.camera.name.split("/")[1]


 class BIM_PT_drawing_underlay(Panel):
@@ -97,12 +101,12 @@ class BIM_PT_drawing_underlay(Panel):
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
-    bl_context = "data"
+    bl_context = "scene"
    bl_parent_id = "BIM_PT_camera"

    @classmethod
    def poll(cls, context):
-        return context.camera and hasattr(context.active_object.data, "BIMCameraProperties")
+        return context.scene.camera and hasattr(context.active_object.data, "BIMCameraProperties")

    def draw(self, context):
        layout = self.layout
@@ -164,10 +168,8 @@ class BIM_PT_drawings(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-
-    @classmethod
-    def poll(cls, context):
-        return tool.Blender.is_tab(context, "DRAWINGS") and tool.Ifc.get()
+    bl_parent_id = "BIM_PT_tab_drawings"
+    bl_options = {"HIDE_HEADER"}

    def draw(self, context):
        if not DrawingsData.is_loaded:
@@ -245,10 +247,8 @@ class BIM_PT_schedules(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-
-    @classmethod
-    def poll(cls, context):
-        return tool.Blender.is_tab(context, "DRAWINGS") and tool.Ifc.get()
+    bl_parent_id = "BIM_PT_tab_schedules"
+    bl_options = {"HIDE_HEADER"}

    def draw(self, context):
        if not DocumentsData.is_loaded:
@@ -297,10 +297,8 @@ class BIM_PT_references(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-
-    @classmethod
-    def poll(cls, context):
-        return tool.Blender.is_tab(context, "DRAWINGS") and tool.Ifc.get()
+    bl_parent_id = "BIM_PT_tab_references"
+    bl_options = {"HIDE_HEADER"}

    def draw(self, context):
        if not DocumentsData.is_loaded:
@@ -314,7 +312,7 @@ class BIM_PT_references(Panel):

        if not self.props.is_editing_references:
            row = self.layout.row(align=True)
-            row.label(text=f"{DocumentsData.data['total_references']} References Found", icon="LONGDISPLAY")
+            row.label(text=f"{DocumentsData.data['total_references']} References Found", icon="OBJECT_HIDDEN")
            row.operator("bim.load_references", text="", icon="IMPORT")
            return

@@ -341,10 +339,8 @@ class BIM_PT_sheets(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-
-    @classmethod
-    def poll(cls, context):
-        return tool.Blender.is_tab(context, "DRAWINGS") and tool.Ifc.get()
+    bl_parent_id = "BIM_PT_tab_sheets"
+    bl_options = {"HIDE_HEADER"}

    def draw(self, context):
        if not SheetsData.is_loaded:
@@ -1,5 +1,5 @@
 # BlenderBIM Add-on - OpenBIM Blender Add-on
-# Copyright (C) 2020, 2021 Dion Moult <dion@thinkmoult.com>
+# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
 #
 # This file is part of BlenderBIM Add-on.
 #
@@ -20,17 +20,18 @@ import bpy
 from . import ui, prop, operator

 classes = (
-    operator.SelectCobieIfcFile,
-    operator.SelectCobieJsonFile,
-    operator.ExecuteIfcCobie,
-    prop.COBieProperties,
-    ui.BIM_PT_cobie,
+    operator.ExecuteIfcFM,
+    operator.ExecuteIfcFMFederate,
+    operator.SelectFMIfcFile,
+    operator.SelectFMSpreadsheetFiles,
+    prop.BIMFMProperties,
+    ui.BIM_PT_fm,
 )


 def register():
-    bpy.types.Scene.COBieProperties = bpy.props.PointerProperty(type=prop.COBieProperties)
+    bpy.types.Scene.BIMFMProperties = bpy.props.PointerProperty(type=prop.BIMFMProperties)


 def unregister():
-    del bpy.types.Scene.COBieProperties
+    del bpy.types.Scene.BIMFMProperties
@@ -0,0 +1,157 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import bpy
+import json
+import ifcfm
+import logging
+import tempfile
+import ifcopenshell
+import blenderbim.tool as tool
+
+
+class SelectFMIfcFile(bpy.types.Operator):
+    bl_idname = "bim.select_fm_ifc_file"
+    bl_label = "Select FM IFC File"
+    bl_options = {"REGISTER", "UNDO"}
+    filename_ext = ".ifc"
+    filter_glob: bpy.props.StringProperty(default="*.ifc;*.ifczip;*.ifcxml", options={"HIDDEN"})
+    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
+    files: bpy.props.CollectionProperty(name="File Path", type=bpy.types.OperatorFileListElement)
+
+    def execute(self, context):
+        props = context.scene.BIMFMProperties
+        props.ifc_files.clear()
+        dirname = os.path.dirname(self.filepath)
+        for f in self.files:
+            new = props.ifc_files.add()
+            new.name = os.path.join(dirname, f.name)
+        props.ifc_file = self.filepath
+        return {"FINISHED"}
+
+    def invoke(self, context, event):
+        context.window_manager.fileselect_add(self)
+        return {"RUNNING_MODAL"}
+
+
+class ExecuteIfcFM(bpy.types.Operator):
+    bl_idname = "bim.execute_ifcfm"
+    bl_label = "Execute IfcFM"
+    file_format: bpy.props.StringProperty()
+    filter_glob: bpy.props.StringProperty(default="*.csv;*.ods;*.xlsx", options={"HIDDEN"})
+    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
+
+    @classmethod
+    def poll(cls, context):
+        props = context.scene.BIMFMProperties
+        return props.should_load_from_memory or props.ifc_file
+
+    def invoke(self, context, event):
+        props = context.scene.BIMFMProperties
+        self.filepath = bpy.path.ensure_ext(bpy.data.filepath, f".{props.format}")
+        WindowManager = context.window_manager
+        WindowManager.fileselect_add(self)
+        return {"RUNNING_MODAL"}
+
+    def execute(self, context):
+        props = context.scene.BIMFMProperties
+        ifc_file = tool.Ifc.get()
+        filepaths = []
+        if not (ifc_file and props.should_load_from_memory):
+            if len(props.ifc_files):
+                ifc_files = [ifcopenshell.open(f.name) for f in props.ifc_files]
+                filepaths = [f.name for f in props.ifc_files]
+            else:
+                ifc_files = [ifcopenshell.open(props.ifc_file)]
+        else:
+            ifc_files = [ifc_file]
+
+        for i, ifc_file in enumerate(ifc_files):
+            if filepaths:
+                dirname = os.path.dirname(self.filepath)
+                prefix, _ = os.path.splitext(os.path.basename(filepaths[i]))
+                basename = os.path.basename(self.filepath)
+                filepath = os.path.join(dirname, f"{prefix}-{basename}")
+            else:
+                filepath = self.filepath
+            parser = ifcfm.Parser(preset=props.engine)
+            parser.parse(ifc_file)
+            writer = ifcfm.Writer(parser)
+            writer.write()
+            if props.format == "csv":
+                writer.write_csv("tmp/")
+            elif props.format == "ods":
+                writer.write_ods(filepath)
+            elif props.format == "xlsx":
+                writer.write_xlsx(filepath)
+        return {"FINISHED"}
+
+
+class SelectFMSpreadsheetFiles(bpy.types.Operator):
+    bl_idname = "bim.select_fm_spreadsheet_files"
+    bl_label = "Select FM Spreadsheet Files"
+    bl_options = {"REGISTER", "UNDO"}
+    filter_glob: bpy.props.StringProperty(default="*.ods;*.xlsx", options={"HIDDEN"})
+    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
+    files: bpy.props.CollectionProperty(name="File Path", type=bpy.types.OperatorFileListElement)
+
+    def execute(self, context):
+        props = context.scene.BIMFMProperties
+        props.spreadsheet_files.clear()
+        dirname = os.path.dirname(self.filepath)
+        for f in self.files:
+            new = props.spreadsheet_files.add()
+            new.name = os.path.join(dirname, f.name)
+        return {"FINISHED"}
+
+    def invoke(self, context, event):
+        context.window_manager.fileselect_add(self)
+        return {"RUNNING_MODAL"}
+
+
+class ExecuteIfcFMFederate(bpy.types.Operator):
+    bl_idname = "bim.execute_ifcfm_federate"
+    bl_label = "Execute IfcFM"
+    file_format: bpy.props.StringProperty()
+    filter_glob: bpy.props.StringProperty(default="*.ods;*.xlsx", options={"HIDDEN"})
+    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
+
+    @classmethod
+    def poll(cls, context):
+        props = context.scene.BIMFMProperties
+        return props.spreadsheet_files
+
+    def invoke(self, context, event):
+        props = context.scene.BIMFMProperties
+        self.filepath = bpy.path.ensure_ext(bpy.data.filepath, f".{props.format}")
+        WindowManager = context.window_manager
+        WindowManager.fileselect_add(self)
+        return {"RUNNING_MODAL"}
+
+    def execute(self, context):
+        props = context.scene.BIMFMProperties
+        parser = ifcfm.Parser(preset=props.engine)
+        parser.federate([f.name for f in props.spreadsheet_files])
+        writer = ifcfm.Writer(parser)
+        writer.write()
+        if props.format == "ods":
+            writer.write_ods(self.filepath)
+        elif props.format == "xlsx":
+            writer.write_xlsx(self.filepath)
+        return {"FINISHED"}
@@ -0,0 +1,57 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import bpy
+from blenderbim.bim.prop import StrProperty
+from bpy.types import PropertyGroup
+from bpy.props import (
+    PointerProperty,
+    StringProperty,
+    EnumProperty,
+    BoolProperty,
+    IntProperty,
+    FloatProperty,
+    FloatVectorProperty,
+    CollectionProperty,
+)
+
+
+class BIMFMProperties(PropertyGroup):
+    ifc_file: StringProperty(default="", name="IFC File")
+    ifc_files: CollectionProperty(name="IFC Files", type=StrProperty)
+    spreadsheet_files: CollectionProperty(name="Spreadsheets", type=StrProperty)
+    should_load_from_memory: BoolProperty(default=False, name="Load from Memory")
+    engine: EnumProperty(
+        items=[
+            ("aohbsem", "AOH-BSEM", ""),
+            ("basic", "Basic", ""),
+            ("cobie24", "COBie 2.4", ""),
+            ("cobie3", "COBie 3", ""),
+        ],
+        name="Engine",
+        default="cobie24",
+    )
+    format: EnumProperty(
+        items=[
+            ("csv", "csv", ""),
+            ("xlsx", "xlsx", ""),
+            ("ods", "ods", ""),
+        ],
+        name="Format",
+        default="ods",
+    )
@@ -1,5 +1,5 @@
 # BlenderBIM Add-on - OpenBIM Blender Add-on
-# Copyright (C) 2020, 2021 Dion Moult <dion@thinkmoult.com>
+# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
 #
 # This file is part of BlenderBIM Add-on.
 #
@@ -21,9 +21,9 @@ from bpy.types import Panel
 from blenderbim.bim.ifc import IfcStore


-class BIM_PT_cobie(Panel):
-    bl_label = "COBie"
-    bl_idname = "BIM_PT_cobie"
+class BIM_PT_fm(Panel):
+    bl_label = "Facility Management"
+    bl_idname = "BIM_PT_fm"
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
@@ -34,7 +34,7 @@ class BIM_PT_cobie(Panel):
        layout.use_property_split = True

        scene = context.scene
-        props = scene.COBieProperties
+        props = scene.BIMFMProperties

        if IfcStore.get_file():
            row = layout.row()
@@ -42,22 +42,23 @@ class BIM_PT_cobie(Panel):

        if not IfcStore.get_file() or not props.should_load_from_memory:
            row = layout.row(align=True)
-            row.prop(props, "cobie_ifc_file")
-            row.operator("bim.select_cobie_ifc_file", icon="FILE_FOLDER", text="")
+            if len(props.ifc_files) > 1:
+                row.label(text=f"{len(props.ifc_files)} Files Selected")
+            else:
+                row.prop(props, "ifc_file")
+            row.operator("bim.select_fm_ifc_file", icon="FILE_FOLDER", text="")

        row = layout.row()
-        row.prop(props, "cobie_types")
+        row.prop(props, "engine")
        row = layout.row()
-        row.prop(props, "cobie_components")
+        row.prop(props, "format")
+
+        row = layout.row()
+        op = row.operator("bim.execute_ifcfm", text="Convert To Spreadsheet")

        row = layout.row(align=True)
-        row.prop(props, "cobie_json_file")
-        row.operator("bim.select_cobie_json_file", icon="FILE_FOLDER", text="")
+        row.label(text=f"{len(props.spreadsheet_files)} Spreadsheets Selected")
+        row.operator("bim.select_fm_spreadsheet_files", icon="FILE_FOLDER", text="")

        row = layout.row()
-        op = row.operator("bim.execute_ifc_cobie", text="CSV")
-        op.file_format = "csv"
-        op = row.operator("bim.execute_ifc_cobie", text="ODS")
-        op.file_format = "ods"
-        op = row.operator("bim.execute_ifc_cobie", text="XLSX")
-        op.file_format = "xlsx"
+        op = row.operator("bim.execute_ifcfm_federate", text="Merge Spreadsheets")
@@ -22,34 +22,46 @@ from . import ui, prop, operator
 classes = (
    operator.AddRepresentation,
    operator.CopyRepresentation,
+    operator.DisableEditingRepresentationItems,
    operator.EditObjectPlacement,
+    operator.EnableEditingRepresentationItems,
+    operator.FlipObject,
    operator.GetRepresentationIfcParameters,
    operator.OverrideDelete,
    operator.OverrideDuplicateMove,
+    operator.OverrideDuplicateMoveAggregate,
+    operator.OverrideDuplicateMoveAggregateMacro,
    operator.OverrideDuplicateMoveLinked,
    operator.OverrideDuplicateMoveLinkedMacro,
    operator.OverrideDuplicateMoveMacro,
-    operator.OverrideDuplicateMoveAggregate,
-    operator.OverrideDuplicateMoveAggregateMacro,
-    operator.RefreshAggregate,
    operator.OverrideJoin,
+    operator.OverrideMeshSeparate,
    operator.OverrideModeSetEdit,
    operator.OverrideModeSetObject,
+    operator.OverrideOriginSet,
    operator.OverrideOutlinerDelete,
    operator.OverridePasteBuffer,
+    operator.PurgeUnusedRepresentations,
+    operator.RefreshAggregate,
    operator.RemoveConnection,
    operator.RemoveRepresentation,
    operator.SelectConnection,
    operator.SwitchRepresentation,
    operator.UpdateParametricRepresentation,
    operator.UpdateRepresentation,
+    prop.RepresentationItem,
    prop.BIMObjectGeometryProperties,
    prop.BIMGeometryProperties,
-    ui.BIM_PT_derived_placements,
+    ui.BIM_PT_placement,
    ui.BIM_PT_representations,
+    ui.BIM_PT_representation_items,
    ui.BIM_PT_connections,
    ui.BIM_PT_mesh,
+    ui.BIM_PT_derived_coordinates,
    ui.BIM_PT_workarounds,
+    ui.BIM_MT_object_set_origin,
+    ui.BIM_MT_separate,
+    ui.BIM_UL_representation_items,
 )


@@ -66,10 +78,10 @@ def register():

    bpy.types.Object.BIMGeometryProperties = bpy.props.PointerProperty(type=prop.BIMObjectGeometryProperties)
    bpy.types.Scene.BIMGeometryProperties = bpy.props.PointerProperty(type=prop.BIMGeometryProperties)
-    bpy.types.OBJECT_PT_transform.append(ui.BIM_PT_transform)
    bpy.types.VIEW3D_MT_object.append(ui.object_menu)
    bpy.types.OUTLINER_MT_object.append(ui.outliner_menu)
    bpy.types.VIEW3D_MT_object_context_menu.append(ui.object_menu)
+    bpy.types.VIEW3D_MT_edit_mesh.append(ui.edit_mesh_menu)
    wm = bpy.context.window_manager
    if wm.keyconfigs.addon:
        km = wm.keyconfigs.addon.keymaps.new(name="Object Mode", space_type="EMPTY")
@@ -110,9 +122,9 @@ def register():

 def unregister():
    bpy.types.VIEW3D_MT_object.remove(ui.object_menu)
-    bpy.types.OBJECT_PT_transform.remove(ui.BIM_PT_transform)
    bpy.types.OUTLINER_MT_object.remove(ui.outliner_menu)
    bpy.types.VIEW3D_MT_object_context_menu.remove(ui.outliner_menu)
+    bpy.types.VIEW3D_MT_edit_mesh.remove(ui.edit_mesh_menu)
    del bpy.types.Scene.BIMGeometryProperties
    del bpy.types.Object.BIMGeometryProperties
    wm = bpy.context.window_manager
@@ -23,8 +23,10 @@ from mathutils import Vector


 def refresh():
-    DerivedPlacementsData.is_loaded = False
+    PlacementData.is_loaded = False
+    DerivedCoordinatesData.is_loaded = False
    RepresentationsData.is_loaded = False
+    RepresentationItemsData.is_loaded = False
    ConnectionsData.is_loaded = False


@@ -91,13 +93,57 @@ class RepresentationsData:
        return results


+class RepresentationItemsData:
+    data = {}
+    is_loaded = False
+
+    @classmethod
+    def load(cls):
+        cls.data = {
+            "total_items": cls.total_items(),
+            "active_surface_style": cls.active_surface_style(),
+            "active_layer": cls.active_layer(),
+        }
+        cls.is_loaded = True
+
+    @classmethod
+    def total_items(cls):
+        active_representation_id = None
+        result = 0
+        if bpy.context.active_object.data and hasattr(bpy.context.active_object.data, "BIMMeshProperties"):
+            active_representation_id = bpy.context.active_object.data.BIMMeshProperties.ifc_definition_id
+            element = tool.Ifc.get().by_id(active_representation_id)
+            if not element.is_a("IfcShapeRepresentation"):
+                return 0
+            queue = list(element.Items)
+            while queue:
+                item = queue.pop()
+                if item.is_a("IfcMappedItem"):
+                    queue.extend(item.MappingSource.MappedRepresentation.Items)
+                else:
+                    result += 1
+        return result
+
+    @classmethod
+    def active_surface_style(cls):
+        props = bpy.context.active_object.BIMGeometryProperties
+        if props.active_item_index < len(props.items):
+            return props.items[props.active_item_index].surface_style
+
+    @classmethod
+    def active_layer(cls):
+        props = bpy.context.active_object.BIMGeometryProperties
+        if props.active_item_index < len(props.items):
+            return props.items[props.active_item_index].layer
+
+
 class ConnectionsData:
    data = {}
    is_loaded = False

    @classmethod
    def load(cls):
-        cls.data = {"connections": cls.connections()}
+        cls.data = {"connections": cls.connections(), "is_connection_realization": cls.is_connection_realization()}
        cls.is_loaded = True

    @classmethod
@@ -114,7 +160,13 @@ class ConnectionsData:
            else:
                related_element = rel.RelatedElement

-            if element.is_a("IfcRelConnectsPathElements"):
+            realizing_elements = []
+            realizing_elements_connection_type = ""
+            if rel.is_a("IfcRelConnectsWithRealizingElements"):
+                realizing_elements.extend(rel.RealizingElements)
+                realizing_elements_connection_type = rel.ConnectionType
+
+            if rel.is_a("IfcRelConnectsPathElements"):
                related_element_connection_type = rel.RelatedConnectionType
            else:
                related_element_connection_type = ""
@@ -125,6 +177,8 @@ class ConnectionsData:
                    "is_relating": True,
                    "Name": related_element.Name or "Unnamed",
                    "ConnectionType": related_element_connection_type,
+                    "realizing_elements": realizing_elements,
+                    "realizing_elements_connection_type": realizing_elements_connection_type,
                }
            )

@@ -134,7 +188,13 @@ class ConnectionsData:
            else:
                relating_element = rel.RelatingElement

-            if element.is_a("IfcRelConnectsPathElements"):
+            realizing_elements = []
+            realizing_elements_connection_type = ""
+            if rel.is_a("IfcRelConnectsWithRealizingElements"):
+                realizing_elements.extend(rel.RealizingElements)
+                realizing_elements_connection_type = rel.ConnectionType
+
+            if rel.is_a("IfcRelConnectsPathElements"):
                relating_element_connection_type = rel.RelatingConnectionType
            else:
                relating_element_connection_type = ""
@@ -145,13 +205,32 @@ class ConnectionsData:
                    "is_relating": False,
                    "Name": relating_element.Name or "Unnamed",
                    "ConnectionType": relating_element_connection_type,
+                    "realizing_elements": realizing_elements,
+                    "realizing_elements_connection_type": realizing_elements_connection_type,
                }
            )

        return results

+    @classmethod
+    def is_connection_realization(cls):
+        element = tool.Ifc.get_entity(bpy.context.active_object)
+        connections = element.IsConnectionRealization
+        if not connections:
+            return

-class DerivedPlacementsData:
+        results = []
+        for rel in connections:
+            data = {
+                "realizing_elements_connection_type": rel.ConnectionType,
+                "connected_from": rel.RelatingElement,
+                "connected_to": rel.RelatedElement,
+            }
+            results.append(data)
+        return results
+
+
+class DerivedCoordinatesData:
    data = {}
    is_loaded = False

@@ -230,6 +309,25 @@ class DerivedPlacementsData:
        for i, storey in enumerate(storeys):
            if storey[0] != element:
                continue
-            if i >= len(storeys):
+            if i >= len(storeys) - 1:
                return "N/A"
            return "{0:.3f}".format(round(storeys[i + 1][1] - storey[1], 3))
+
+
+class PlacementData:
+    data = {}
+    is_loaded = False
+
+    @classmethod
+    def load(cls):
+        cls.data = {
+            "has_placement": cls.has_placement(),
+        }
+        cls.is_loaded = True
+
+    @classmethod
+    def has_placement(cls):
+        element = tool.Ifc.get_entity(bpy.context.active_object)
+        if element and hasattr(element, "ObjectPlacement"):
+            return True
+        return False
@@ -34,6 +34,7 @@ import blenderbim.core.drawing
 import blenderbim.tool as tool
 import blenderbim.bim.handler
 from mathutils import Vector, Matrix
+from time import time
 from blenderbim.bim import import_ifc
 from blenderbim.bim.ifc import IfcStore

@@ -57,14 +58,79 @@ class EditObjectPlacement(bpy.types.Operator, Operator):
            core.edit_object_placement(tool.Ifc, tool.Geometry, tool.Surveyor, obj=obj)


+class OverrideMeshSeparate(bpy.types.Operator, Operator):
+    bl_idname = "bim.override_mesh_separate"
+    bl_label = "IFC Mesh Separate"
+    bl_options = {"REGISTER", "UNDO"}
+    obj: bpy.props.StringProperty()
+    type: bpy.props.StringProperty()
+
+    def _execute(self, context):
+        obj = context.active_object
+
+        # You cannot separate meshes if the representation is mapped.
+        relating_type = tool.Root.get_element_type(tool.Ifc.get_entity(obj))
+        if relating_type and tool.Root.does_type_have_representations(relating_type):
+            # We toggle edit mode to ensure that once representations are
+            # unmapped, our Blender mesh only has a single user.
+            tool.Blender.toggle_edit_mode(context)
+            bpy.ops.bim.unassign_type(related_object=obj.name)
+            tool.Blender.toggle_edit_mode(context)
+
+        selected_objects = context.selected_objects
+        bpy.ops.mesh.separate(type=self.type)
+        bpy.ops.object.mode_set(mode="OBJECT", toggle=False)
+        new_objs = [obj]
+        for new_obj in context.selected_objects:
+            if new_obj == obj:
+                continue
+            # This is not very efficient, it needlessly copies the representations first.
+            blenderbim.core.root.copy_class(tool.Ifc, tool.Collector, tool.Geometry, tool.Root, obj=new_obj)
+            new_objs.append(new_obj)
+        for new_obj in new_objs:
+            bpy.ops.bim.update_representation(obj=new_obj.name)
+
+
+class OverrideOriginSet(bpy.types.Operator, Operator):
+    bl_idname = "bim.override_origin_set"
+    bl_label = "IFC Origin Set"
+    bl_options = {"REGISTER", "UNDO"}
+    obj: bpy.props.StringProperty()
+    origin_type: bpy.props.StringProperty()
+
+    def _execute(self, context):
+        objs = [bpy.data.objects.get(self.obj)] if self.obj else context.selected_objects
+        for obj in objs:
+            element = tool.Ifc.get_entity(obj)
+            if not element:
+                continue
+            if tool.Ifc.is_moved(obj):
+                core.edit_object_placement(tool.Ifc, tool.Geometry, tool.Surveyor, obj=obj)
+            representation = tool.Geometry.get_active_representation(obj)
+            if not representation:
+                continue
+            representation = ifcopenshell.util.representation.resolve_representation(representation)
+            if not tool.Geometry.is_meshlike(representation):
+                continue
+            bpy.ops.object.origin_set(type=self.origin_type)
+            bpy.ops.bim.update_representation(obj=obj.name)
+
+
 class AddRepresentation(bpy.types.Operator, Operator):
    bl_idname = "bim.add_representation"
    bl_label = "Add Representation"
    bl_options = {"REGISTER", "UNDO"}
    representation_conversion_method: bpy.props.EnumProperty(
        items=[
-            ("OUTLINE", "Trace Outline", ""),
-            ("BOX", "Bounding Box", ""),
+            ("OUTLINE", "Trace Outline", "Traces outline by local XY axes, for Profile - by local XZ axes."),
+            (
+                "BOX",
+                "Bounding Box",
+                "Creates a bounding box representation.\n"
+                "For Plan context - 2D bounding box by local XY axes,\n"
+                "for Profile - 2D bounding box by local XZ axes.\n"
+                "For other contexts - bounding box is 3d.",
+            ),
            ("PROJECT", "Full Representation", ""),
        ],
        name="Representation Conversion Method",
@@ -145,18 +211,22 @@ class SwitchRepresentation(bpy.types.Operator, Operator):
    should_switch_all_meshes: bpy.props.BoolProperty()

    def _execute(self, context):
-        target = tool.Ifc.get().by_id(self.ifc_definition_id).ContextOfItems
+        target_representation = tool.Ifc.get().by_id(self.ifc_definition_id)
+        target = target_representation.ContextOfItems
        is_subcontext = target.is_a("IfcGeometricRepresentationSubContext")
        for obj in set(context.selected_objects + [context.active_object]):
            element = tool.Ifc.get_entity(obj)
            if not element:
                continue
-            if is_subcontext:
-                representation = ifcopenshell.util.representation.get_representation(
-                    element, target.ContextType, target.ContextIdentifier, target.TargetView
-                )
+            if obj == context.active_object:
+                representation = target_representation
            else:
-                representation = ifcopenshell.util.representation.get_representation(element, target.ContextType)
+                if is_subcontext:
+                    representation = ifcopenshell.util.representation.get_representation(
+                        element, target.ContextType, target.ContextIdentifier, target.TargetView
+                    )
+                else:
+                    representation = ifcopenshell.util.representation.get_representation(element, target.ContextType)
            if not representation:
                continue
            core.switch_representation(
@@ -185,6 +255,16 @@ class RemoveRepresentation(bpy.types.Operator, Operator):
        )


+class PurgeUnusedRepresentations(bpy.types.Operator, Operator):
+    bl_idname = "bim.purge_unused_representations"
+    bl_label = "Purge Unused Representations"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def _execute(self, context):
+        purged_representations = core.purge_unused_representations(tool.Ifc, tool.Geometry)
+        self.report({"INFO"}, f"{purged_representations} representations were purged.")
+
+
 class UpdateRepresentation(bpy.types.Operator, Operator):
    bl_idname = "bim.update_representation"
    bl_label = "Update Representation"
@@ -214,6 +294,10 @@ class UpdateRepresentation(bpy.types.Operator, Operator):
        product = self.file.by_id(obj.BIMObjectProperties.ifc_definition_id)
        material = ifcopenshell.util.element.get_material(product, should_skip_usage=True)

+        if getattr(product, "HasOpenings", False) and obj.data.BIMMeshProperties.has_openings_applied:
+            # Meshlike things with openings can only be updated without openings applied.
+            return
+
        if not product.is_a("IfcGridAxis"):
            tool.Geometry.clear_cache(product)

@@ -231,8 +315,15 @@ class UpdateRepresentation(bpy.types.Operator, Operator):
            core.edit_object_placement(tool.Ifc, tool.Geometry, tool.Surveyor, obj=obj)

        if material and material.is_a() in ["IfcMaterialProfileSet", "IfcMaterialLayerSet"]:
-            # These objects are parametrically based on an axis and should not be modified as a mesh
-            return
+            if self.ifc_representation_class == "IfcTessellatedFaceSet":
+                # We are explicitly casting to a tessellation, so remove all parametric materials.
+                element_type = ifcopenshell.util.element.get_type(product)
+                if element_type:  # Some invalid IFCs use material sets without a type.
+                    ifcopenshell.api.run("material.unassign_material", tool.Ifc.get(), product=element_type)
+                ifcopenshell.api.run("material.unassign_material", tool.Ifc.get(), product=product)
+            else:
+                # These objects are parametrically based on an axis and should not be modified as a mesh
+                return

        old_representation = self.file.by_id(obj.data.BIMMeshProperties.ifc_definition_id)
        context_of_items = old_representation.ContextOfItems
@@ -285,7 +376,7 @@ class UpdateRepresentation(bpy.types.Operator, Operator):
                "style.assign_representation_styles",
                self.file,
                shape_representation=new_representation,
-                styles=tool.Geometry.get_styles(obj),
+                styles=tool.Geometry.get_styles(obj, only_assigned_to_faces=True),
                should_use_presentation_style_assignment=context.scene.BIMGeometryProperties.should_use_presentation_style_assignment,
            )
            tool.Geometry.record_object_materials(obj)
@@ -353,6 +444,8 @@ class GetRepresentationIfcParameters(bpy.types.Operator, Operator):

    def _execute(self, context):
        core.get_representation_ifc_parameters(tool.Geometry, obj=context.active_object)
+        parameters = context.active_object.data.BIMMeshProperties.ifc_parameters
+        self.report({"INFO"}, f"{len(parameters)} parameters found.")


 class CopyRepresentation(bpy.types.Operator, Operator):
@@ -377,7 +470,7 @@ class CopyRepresentation(bpy.types.Operator, Operator):
                if not element:
                    continue
                bm.to_mesh(obj.data)
-                old_rep = self.get_representation_by_context(element, geometric_context)
+                old_rep = tool.Geometry.get_representation_by_context(element, geometric_context)
                if old_rep:
                    ifcopenshell.api.run(
                        "geometry.unassign_representation", tool.Ifc.get(), product=element, representation=old_rep
@@ -394,16 +487,6 @@ class CopyRepresentation(bpy.types.Operator, Operator):
                    profile_set_usage=None,
                )

-    def get_representation_by_context(self, element, context):
-        if element.is_a("IfcProduct") and element.Representation:
-            for r in element.Representation.Representations:
-                if r.ContextOfItems == context:
-                    return r
-        elif element.is_a("IfcTypeProduct") and element.RepresentationMaps:
-            for r in element.RepresentationMaps:
-                if r.MappedRepresentation.ContextOfItems == context:
-                    return r.MappedRepresentation
-

 class OverrideDelete(bpy.types.Operator):
    bl_idname = "bim.override_object_delete"
@@ -452,6 +535,8 @@ class OverrideDelete(bpy.types.Operator):
    def _execute(self, context):
        if self.is_batch:
            ifcopenshell.util.element.batch_remove_deep2(tool.Ifc.get())
+
+        self.process_arrays(context)
        for obj in context.selected_objects:
            element = tool.Ifc.get_entity(obj)
            if element:
@@ -461,6 +546,7 @@ class OverrideDelete(bpy.types.Operator):
                tool.Geometry.delete_ifc_object(obj)
            else:
                bpy.data.objects.remove(obj)
+
        if self.is_batch:
            old_file = tool.Ifc.get()
            old_file.end_transaction()
@@ -481,6 +567,30 @@ class OverrideDelete(bpy.types.Operator):
        data["old_file"].redo()
        tool.Ifc.set(data["new_file"])

+    def process_arrays(self, context):
+        selected_objects = set(context.selected_objects)
+        array_parents = set()
+        for obj in context.selected_objects:
+            element = tool.Ifc.get_entity(obj)
+            if not element:
+                continue
+            pset = ifcopenshell.util.element.get_pset(element, "BBIM_Array")
+            if not pset:
+                continue
+            array_parents.add(tool.Ifc.get().by_guid(pset["Parent"]))
+
+        for array_parent in array_parents:
+            array_parent_obj = tool.Ifc.get_object(array_parent)
+            data = [(i, data) for i, data in enumerate(tool.Blender.Modifier.Array.get_modifiers_data(array_parent))]
+            # NOTE: there is a way to remove arrays more precisely but it's more complex
+            for i, modifier_data in reversed(data):
+                children = set(tool.Blender.Modifier.Array.get_children_objects(modifier_data))
+                if children.issubset(selected_objects):
+                    with context.temp_override(active_object=array_parent_obj):
+                        bpy.ops.bim.remove_array(item=i)
+                else:
+                    break  # allows to remove only n last layers of an array
+

 class OverrideOutlinerDelete(bpy.types.Operator):
    bl_idname = "bim.override_outliner_delete"
@@ -491,7 +601,7 @@ class OverrideOutlinerDelete(bpy.types.Operator):

    @classmethod
    def poll(cls, context):
-        return len(context.selected_ids) > 0
+        return len(getattr(context, "selected_ids", [])) > 0

    def execute(self, context):
        # In this override, we don't check self.hierarchy. This effectively
@@ -606,6 +716,13 @@ class OverrideDuplicateMove(bpy.types.Operator):
        return len(context.selected_objects) > 0

    def execute(self, context):
+        return OverrideDuplicateMove.execute_duplicate_operator(self, context, linked=False)
+
+    def _execute(self, context):
+        return OverrideDuplicateMove.execute_ifc_duplicate_operator(self, context)
+
+    @staticmethod
+    def execute_duplicate_operator(self, context, linked=False):
        # Deep magick from the dawn of time
        if IfcStore.get_file():
            IfcStore.execute_ifc_operator(self, context)
@@ -616,7 +733,7 @@ class OverrideDuplicateMove(bpy.types.Operator):
        new_active_obj = None
        for obj in context.selected_objects:
            new_obj = obj.copy()
-            if obj.data:
+            if linked and obj.data:
                new_obj.data = obj.data.copy()
            if obj == context.active_object:
                new_active_obj = new_obj
@@ -628,39 +745,111 @@ class OverrideDuplicateMove(bpy.types.Operator):
            context.view_layer.objects.active = new_active_obj
        return {"FINISHED"}

-    def _execute(self, context):
+    @staticmethod
+    def execute_ifc_duplicate_operator(self, context, linked=False):
+        objects_to_duplicate = set(context.selected_objects)
+
+        # handle arrays
+        arrays_to_duplicate, array_children = OverrideDuplicateMove.process_arrays(self, context)
+        objects_to_duplicate -= array_children
+        for child in array_children:
+            child.select_set(False)
+
        self.new_active_obj = None
        # Track decompositions so they can be recreated after the operation
-        relationships = tool.Root.get_decomposition_relationships(context.selected_objects)
+        relationships = tool.Root.get_decomposition_relationships(objects_to_duplicate)
        old_to_new = {}
-        for obj in context.selected_objects:
+
+        for obj in objects_to_duplicate:
            element = tool.Ifc.get_entity(obj)
            if element and element.is_a("IfcAnnotation") and element.ObjectType == "DRAWING":
                continue  # For now, don't copy drawings until we stabilise a bit more. It's tricky.
+
+            linked_non_ifc_object = linked and not element
+
+            # Prior to duplicating, sync the object placement to make decomposition recreation more stable.
+            if tool.Ifc.is_moved(obj):
+                blenderbim.core.geometry.edit_object_placement(tool.Ifc, tool.Geometry, tool.Surveyor, obj=obj)
+
            new_obj = obj.copy()
-            if obj.data:
-                new_obj.data = obj.data.copy()
+            temp_data = None
+
+            if obj.data and not linked_non_ifc_object:
+                # assure root.copy_class won't replace the previous mesh globally
+                temp_data = obj.data.copy()
+                new_obj.data = temp_data
+
            if obj == context.active_object:
                self.new_active_obj = new_obj
            for collection in obj.users_collection:
                collection.objects.link(new_obj)
            obj.select_set(False)
            new_obj.select_set(True)
+
+            if linked_non_ifc_object:
+                continue
+
            # clear object's collection so it will be able to have it's own
            new_obj.BIMObjectProperties.collection = None
-            # Copy the actual class
+            # copy the actual class
            new = blenderbim.core.root.copy_class(tool.Ifc, tool.Collector, tool.Geometry, tool.Root, obj=new_obj)
+
+            # clean up the orphaned mesh with ifc id of the original object to avoid confusion
+            if new and temp_data:
+                tool.Blender.remove_data_block(temp_data)
+
            if new:
-                array_pset = ifcopenshell.util.element.get_pset(new, "BBIM_Array")
-                if array_pset:
-                    array_pset = tool.Ifc.get().by_id(array_pset["id"])
-                    ifcopenshell.api.run("pset.remove_pset", tool.Ifc.get(), product=new, pset=array_pset)
-                old_to_new[tool.Ifc.get_entity(obj)] = [new]
+                # TODO: handle array data for other cases of duplication
+                array_data = arrays_to_duplicate.get(obj, None)
+                tool.Model.handle_array_on_copied_element(new, array_data)
+                if array_data:
+                    for child in tool.Blender.Modifier.Array.get_all_children_objects(new):
+                        child.select_set(True)
+
+                # TODO: add new array children to recreate their decomposition too
+                old_to_new[element] = [new]
                if new.is_a("IfcRelSpaceBoundary"):
                    tool.Boundary.decorate_boundary(new_obj)
+
        # Recreate decompositions
        tool.Root.recreate_decompositions(relationships, old_to_new)
-        blenderbim.bim.handler.purge_module_data()
+        blenderbim.bim.handler.refresh_ui_data()
+
+    @staticmethod
+    def process_arrays(self, context):
+        selected_objects = set(context.selected_objects)
+        array_parents = set()
+        arrays_to_create = dict()
+        array_children = set()  # will be ignored during the duplication
+
+        for obj in context.selected_objects:
+            element = tool.Ifc.get_entity(obj)
+            if not element:
+                continue
+            pset = ifcopenshell.util.element.get_pset(element, "BBIM_Array")
+            if not pset:
+                continue
+            array_parents.add(tool.Ifc.get().by_guid(pset["Parent"]))
+
+        for array_parent in array_parents:
+            array_parent_obj = tool.Ifc.get_object(array_parent)
+            if array_parent_obj not in selected_objects:
+                continue
+
+            array_data = []
+            for modifier_data in tool.Blender.Modifier.Array.get_modifiers_data(array_parent):
+                children = set(tool.Blender.Modifier.Array.get_children_objects(modifier_data))
+                if children.issubset(selected_objects):
+                    modifier_data["children"] = []
+                    array_data.append(modifier_data)
+                    array_children.update(children)
+                else:
+                    break  # allows to duplicate only n first layers of an array
+
+            if array_data:
+                arrays_to_create[array_parent_obj] = array_data
+
+        return arrays_to_create, array_children


 class OverrideDuplicateMoveLinkedMacro(bpy.types.Macro):
@@ -679,53 +868,10 @@ class OverrideDuplicateMoveLinked(bpy.types.Operator):
        return len(context.selected_objects) > 0

    def execute(self, context):
-        # Deep magick from the dawn of time
-        if IfcStore.get_file():
-            IfcStore.execute_ifc_operator(self, context)
-            if self.new_active_obj:
-                context.view_layer.objects.active = self.new_active_obj
-            return {"FINISHED"}
-
-        new_active_obj = None
-        for obj in context.selected_objects:
-            new_obj = obj.copy()
-            if obj == context.active_object:
-                new_active_obj = new_obj
-            for collection in obj.users_collection:
-                collection.objects.link(new_obj)
-            obj.select_set(False)
-            new_obj.select_set(True)
-        if new_active_obj:
-            context.view_layer.objects.active = new_active_obj
-        return {"FINISHED"}
+        return OverrideDuplicateMove.execute_duplicate_operator(self, context, linked=True)

    def _execute(self, context):
-        self.new_active_obj = None
-        # Track decompositions so they can be recreated after the operation
-        relationships = tool.Root.get_decomposition_relationships(context.selected_objects)
-        old_to_new = {}
-        for obj in context.selected_objects:
-            new_obj = obj.copy()
-            if obj.data:
-                new_obj.data = obj.data.copy()
-            if obj == context.active_object:
-                self.new_active_obj = new_obj
-            for collection in obj.users_collection:
-                collection.objects.link(new_obj)
-            obj.select_set(False)
-            new_obj.select_set(True)
-            # Copy the actual class
-            new = blenderbim.core.root.copy_class(tool.Ifc, tool.Collector, tool.Geometry, tool.Root, obj=new_obj)
-            if new:
-                array_pset = ifcopenshell.util.element.get_pset(new, "BBIM_Array")
-                if array_pset:
-                    array_pset = tool.Ifc.get().by_id(array_pset["id"])
-                    ifcopenshell.api.run("pset.remove_pset", tool.Ifc.get(), product=new, pset=array_pset)
-                old_to_new[tool.Ifc.get_entity(obj)] = new
-        # Recreate decompositions
-        tool.Root.recreate_decompositions(relationships, old_to_new)
-        blenderbim.bim.handler.purge_module_data()
-        return {"FINISHED"}
+        return OverrideDuplicateMove.execute_ifc_duplicate_operator(self, context, linked=True)


 class OverrideDuplicateMoveAggregateMacro(bpy.types.Macro):
@@ -745,28 +891,7 @@ class OverrideDuplicateMoveAggregate(bpy.types.Operator):
        return len(context.selected_objects) > 0

    def execute(self, context):
-        # Deep magick from the dawn of time
-        if IfcStore.get_file():
-            IfcStore.execute_ifc_operator(self, context)
-            if self.new_active_obj:
-                context.view_layer.objects.active = self.new_active_obj
-            return {"FINISHED"}
-
-        new_active_obj = None
-
-        for obj in context.selected_objects:
-            new_obj = obj.copy()
-            if obj.data:
-                new_obj.data = obj.data.copy()
-            if obj == context.active_object:
-                new_active_obj = new_obj
-            for collection in obj.users_collection:
-                collection.objects.link(new_obj)
-            obj.select_set(False)
-            new_obj.select_set(True)
-        if new_active_obj:
-            context.view_layer.objects.active = new_active_obj
-        return {"FINISHED"}
+        return OverrideDuplicateMove.execute_duplicate_operator(self, context, linked=False)

    def _execute(self, context):
        self.new_active_obj = None
@@ -964,12 +1089,7 @@ class OverrideDuplicateMoveAggregate(bpy.types.Operator):
            )

            if new_entity:
-                # Checks if the object belongs to an Ifc Array
-                array_pset = ifcopenshell.util.element.get_pset(new_entity, "BBIM_Array")
-                if array_pset:
-                    array_pset = tool.Ifc.get().by_id(array_pset["id"])
-                    ifcopenshell.api.run("pset.remove_pset", tool.Ifc.get(), product=new_entity, pset=array_pset)
-
+                tool.Model.handle_array_on_copied_element(new_entity)
                blenderbim.core.aggregate.unassign_object(
                    tool.Ifc,
                    tool.Aggregate,
@@ -1004,6 +1124,17 @@ class OverrideDuplicateMoveAggregate(bpy.types.Operator):

        recreate_data_structure(new_root_entity)

+        # Remove connections with old objects
+        for new in old_to_new.values():
+            for connection in new[0].ConnectedTo:
+                entity = connection.RelatedElement
+                if entity in old_to_new.keys():
+                    core.remove_connection(tool.Geometry, connection=connection)
+            for connection in new[0].ConnectedFrom:
+                entity = connection.RelatingElement
+                if entity in old_to_new.keys():
+                    core.remove_connection(tool.Geometry, connection=connection)
+
        old_objs = []
        for old, new in old_to_new.items():
            old_objs.append(tool.Ifc.get_object(old))
@@ -1012,7 +1143,7 @@ class OverrideDuplicateMoveAggregate(bpy.types.Operator):

        tool.Root.recreate_decompositions(relationships, old_to_new)

-        blenderbim.bim.handler.purge_module_data()
+        blenderbim.bim.handler.refresh_ui_data()

        return {"FINISHED"}

@@ -1035,6 +1166,7 @@ class RefreshAggregate(bpy.types.Operator):
        return {"FINISHED"}

    def _execute(self, context):
+        refresh_start_time = time()
        self.new_active_obj = None
        old_to_new = {}

@@ -1067,9 +1199,64 @@ class RefreshAggregate(bpy.types.Operator):
            else:
                parts = ifcopenshell.util.element.get_parts(instance_entity)
                for part in parts:
+                    pset = ifcopenshell.util.element.get_pset(part, "BBIM_Aggregate_Data")
+                    if part.is_a("IfcElementAssembly"):
+                        if not pset:
+                            data_children = {
+                                "children": [],
+                                "instance_of": [part.GlobalId],
+                            }
+                            data = [data_children]
+
+                            pset = ifcopenshell.api.run(
+                                "pset.add_pset", tool.Ifc.get(), product=part, name="BBIM_Aggregate_Data"
+                            )
+                            ifcopenshell.api.run(
+                                "pset.edit_pset",
+                                tool.Ifc.get(),
+                                pset=pset,
+                                properties={"Parent": instance_entity.GlobalId, "Data": json.dumps(data)},
+                            )
+
+                            part_obj = tool.Ifc.get_object(part)
+                            new_part = duplicate_objects(part_obj)
+
+                            blenderbim.core.aggregate.assign_object(
+                                tool.Ifc,
+                                tool.Aggregate,
+                                tool.Collector,
+                                relating_obj=tool.Ifc.get_object(entity),
+                                related_obj=tool.Ifc.get_object(new_part),
+                            )
+                            duplicate_children(new_part)
+
+                for part in parts:
+                    pset = ifcopenshell.util.element.get_pset(part, "BBIM_Aggregate_Data")
                    if part.is_a("IfcElementAssembly"):
                        pass
+
                    else:
+                        if not pset:
+                            pset = ifcopenshell.api.run(
+                                "pset.add_pset", tool.Ifc.get(), product=part, name="BBIM_Aggregate_Data"
+                            )
+                        else:
+                            pset = ifcopenshell.util.element.get_pset(part, "BBIM_Aggregate_Data")
+                            pset = tool.Ifc.get().by_id(pset["id"])
+
+                        data_children = {
+                            "children": [],
+                            "instance_of": [],
+                        }
+                        data = [data_children]
+
+                        ifcopenshell.api.run(
+                            "pset.edit_pset",
+                            tool.Ifc.get(),
+                            pset=pset,
+                            properties={"Parent": instance_entity.GlobalId, "Data": json.dumps(data)},
+                        )
+
                        part_obj = tool.Ifc.get_object(part)
                        new_part = duplicate_objects(part_obj)
                        blenderbim.core.aggregate.assign_object(
@@ -1091,47 +1278,58 @@ class RefreshAggregate(bpy.types.Operator):
            obj.select_set(False)
            new_obj.select_set(True)

+            # This is needed to make sure the new object gets unlink from
+            # the old object assembly collection
+            new_obj.BIMObjectProperties.collection = None
+
            # Copy the actual class
            new_entity = blenderbim.core.root.copy_class(
                tool.Ifc, tool.Collector, tool.Geometry, tool.Root, obj=new_obj
            )

            if new_entity:
-                # Checks if the object belongs to an Ifc Array
-                array_pset = ifcopenshell.util.element.get_pset(new_entity, "BBIM_Array")
-                if array_pset:
-                    array_pset = tool.Ifc.get().by_id(array_pset["id"])
-                    ifcopenshell.api.run("pset.remove_pset", tool.Ifc.get(), product=new_entity, pset=array_pset)
+                tool.Model.handle_array_on_copied_element(new_entity)

-                blenderbim.core.aggregate.unassign_object(
-                    tool.Ifc,
-                    tool.Aggregate,
-                    tool.Collector,
-                    relating_obj=obj,
-                    related_obj=tool.Ifc.get_object(new_entity),
-                )
+                if not new_entity.is_a("IfcElementAssembly"):
+                    blenderbim.core.aggregate.unassign_object(
+                        tool.Ifc,
+                        tool.Aggregate,
+                        tool.Collector,
+                        relating_obj=obj,
+                        related_obj=tool.Ifc.get_object(new_entity),
+                    )

                old_to_new[tool.Ifc.get_entity(obj)] = [new_entity]

            return new_entity

        if len(context.selected_objects) != 1:
+            self.report({"INFO"}, "Only 1 object need to be selected.")
            return {"FINISHED"}

        selected_root_obj = context.selected_objects[0]
        selected_root_entity = tool.Ifc.get_entity(selected_root_obj)

-        if not selected_root_entity.is_a("IfcElementAssembly"):
+        if selected_root_entity.is_a("IfcElementAssembly"):
+            pass
+        elif selected_root_entity.Decomposes:
+            if selected_root_entity.Decomposes[0].RelatingObject.is_a("IfcElementAssembly"):
+                selected_root_entity = selected_root_entity.Decomposes[0].RelatingObject
+                selected_root_obj = tool.Ifc.get_object(selected_root_entity)
+        else:
+            self.report({"INFO"}, "Object is not part of a IfcElementAssembly.")
            return {"FINISHED"}

        pset = ifcopenshell.util.element.get_pset(selected_root_entity, "BBIM_Aggregate_Data")
        if not pset:
+            self.report({"INFO"}, "Object is not part of an assembly aggregate.")
            return {"FINISHED"}

        pset_data = json.loads(pset["Data"])[0]
        instance_of = pset_data["instance_of"][0]
        original_root_entity = tool.Ifc.get().by_guid(instance_of)
        if original_root_entity == selected_root_entity:
+            self.report({"INFO"}, "Cannot refresh original assembly. Select an assembly instance.")
            return {"FINISHED"}

        parents = remove_objects(selected_root_entity)
@@ -1144,13 +1342,24 @@ class RefreshAggregate(bpy.types.Operator):
        for parent in parents:
            duplicate_children(parent)

+        # Remove connections with old objects
+        for new in old_to_new.values():
+            for connection in new[0].ConnectedTo:
+                entity = connection.RelatedElement
+                if entity in old_to_new.keys():
+                    core.remove_connection(tool.Geometry, connection=connection)
+            for connection in new[0].ConnectedFrom:
+                entity = connection.RelatingElement
+                if entity in old_to_new.keys():
+                    core.remove_connection(tool.Geometry, connection=connection)
+
        old_objs = []
        for old, new in old_to_new.items():
            old_objs.append(tool.Ifc.get_object(old))

            new_obj = tool.Ifc.get_object(new[0])

-            matrix_diff = new_obj.matrix_world @ original_matrix
+            matrix_diff = Matrix.inverted(original_matrix) @ new_obj.matrix_world
            new_matrix = selected_matrix @ matrix_diff

            new_obj.matrix_world = new_matrix
@@ -1159,8 +1368,11 @@ class RefreshAggregate(bpy.types.Operator):

        tool.Root.recreate_decompositions(relationships, old_to_new)

-        blenderbim.bim.handler.purge_module_data()
+        blenderbim.bim.handler.refresh_ui_data()

+        operator_time = time() - refresh_start_time
+        if operator_time > 10:
+            self.report({"INFO"}, "Refresh Aggregate was finished in {:.2f} seconds".format(operator_time))
        return {"FINISHED"}


@@ -1317,8 +1529,13 @@ class OverrideModeSetEdit(bpy.types.Operator):
                continue

            is_profile = True
+            representation_class = tool.Geometry.get_ifc_representation_class(element, representation)
            if usage_type == "PROFILE":
                operator = lambda: bpy.ops.bim.hotkey(hotkey="A_E")
+            elif representation_class and "IfcCircleProfileDef" in representation_class:
+                self.report({"INFO"}, "Can't edit Circle Profile Extrusion")
+                obj.select_set(False)
+                continue
            elif (
                tool.Geometry.is_profile_based(obj.data)
                or usage_type == "LAYER3"
@@ -1347,6 +1564,7 @@ class OverrideModeSetEdit(bpy.types.Operator):
                    continue

            if tool.Geometry.is_meshlike(representation):
+                tool.Ifc.edit(obj)
                if getattr(element, "HasOpenings", None):
                    # Mesh elements with openings must disable openings
                    # so that you can edit the original topology.
@@ -1365,8 +1583,9 @@ class OverrideModeSetEdit(bpy.types.Operator):
            else:
                obj.select_set(False)
                continue
-
-        if not context.selected_objects or len(context.selected_objects) != len(selected_objs):
+        if len(selected_objs) > 1 and (
+            not context.selected_objects or len(context.selected_objects) != len(selected_objs)
+        ):
            # We are trying to edit at least one non-mesh-like object : Display a hint to the user
            self.report({"INFO"}, "Only mesh-compatible representations may be edited concurrently in edit mode.")

@@ -1408,9 +1627,11 @@ class OverrideModeSetObject(bpy.types.Operator):
                    self.reload_representation(obj)
            else:
                self.reload_representation(obj)
+            tool.Ifc.finish_edit(obj)

        for obj in self.unchanged_objs_with_openings:
            self.reload_representation(obj)
+            tool.Ifc.finish_edit(obj)
        return {"FINISHED"}

    def reload_representation(self, obj):
@@ -1476,6 +1697,9 @@ class OverrideModeSetObject(bpy.types.Operator):
                    bpy.ops.bim.finish_editing_roof_path()
                elif tool.Model.get_usage_type(element) == "PROFILE":
                    bpy.ops.bim.edit_extrusion_axis()
+                # if in the process of editing arbitrary profile
+                elif context.scene.BIMProfileProperties.active_arbitrary_profile_id:
+                    bpy.ops.bim.edit_arbitrary_profile()
                else:
                    bpy.ops.bim.edit_extrusion_profile()
                return self.execute(context)
@@ -1490,7 +1714,76 @@ class OverrideModeSetObject(bpy.types.Operator):
                    self.edited_objs.append(obj)
                elif getattr(element, "HasOpenings", None):
                    self.unchanged_objs_with_openings.append(obj)
+                else:
+                    tool.Ifc.finish_edit(obj)

        if self.edited_objs:
            return context.window_manager.invoke_props_dialog(self)
        return self.execute(context)
+
+
+class FlipObject(bpy.types.Operator):
+    bl_idname = "bim.flip_object"
+    bl_label = "Flip Object"
+    bl_description = "Flip object's local axes, keep the position"
+    bl_options = {"REGISTER", "UNDO"}
+
+    flip_local_axes: bpy.props.EnumProperty(
+        name="Flip Local Axes", items=(("XY", "XY", ""), ("YZ", "YZ", ""), ("XZ", "XZ", "")), default="XY"
+    )
+
+    def execute(self, context):
+        for obj in context.selected_objects:
+            tool.Geometry.flip_object(obj, self.flip_local_axes)
+        return {"FINISHED"}
+
+
+class EnableEditingRepresentationItems(bpy.types.Operator, Operator):
+    bl_idname = "bim.enable_editing_representation_items"
+    bl_label = "Enable Editing Representation Items"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def _execute(self, context):
+        obj = context.active_object
+
+        props = obj.BIMGeometryProperties
+        props.is_editing = True
+
+        props.items.clear()
+
+        if bpy.context.active_object.data and hasattr(bpy.context.active_object.data, "BIMMeshProperties"):
+            active_representation_id = bpy.context.active_object.data.BIMMeshProperties.ifc_definition_id
+            element = tool.Ifc.get().by_id(active_representation_id)
+            if not element.is_a("IfcShapeRepresentation"):
+                return
+            queue = list(element.Items)
+            while queue:
+                item = queue.pop()
+                if item.is_a("IfcMappedItem"):
+                    queue.extend(item.MappingSource.MappedRepresentation.Items)
+                else:
+                    new = props.items.add()
+                    new.name = item.is_a()
+                    new.ifc_definition_id = item.id()
+
+                    styles = []
+                    for inverse in tool.Ifc.get().get_inverse(item):
+                        if inverse.is_a("IfcStyledItem"):
+                            styles = inverse.Styles
+                            if styles and styles[0].is_a("IfcPresentationStyleAssignment"):
+                                styles = styles[0].Styles
+                            for style in styles:
+                                if style.is_a("IfcSurfaceStyle"):
+                                    new.surface_style = style.Name or "Unnamed"
+                        elif inverse.is_a("IfcPresentationLayerAssignment"):
+                            new.layer = inverse.Name or "Unnamed"
+
+
+class DisableEditingRepresentationItems(bpy.types.Operator, Operator):
+    bl_idname = "bim.disable_editing_representation_items"
+    bl_label = "Disable Editing Representation Items"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def _execute(self, context):
+        obj = context.active_object
+        obj.BIMGeometryProperties.is_editing = False
@@ -38,8 +38,18 @@ def get_contexts(self, context):
    return RepresentationsData.data["contexts"]


+class RepresentationItem(PropertyGroup):
+    name: StringProperty(name="Name")
+    surface_style: StringProperty(name="Surface Style")
+    layer: StringProperty(name="Layer")
+    ifc_definition_id: IntProperty(name="IFC Definition ID")
+
+
 class BIMObjectGeometryProperties(PropertyGroup):
    contexts: EnumProperty(items=get_contexts, name="Contexts")
+    is_editing: BoolProperty(name="Is Editing", default=False)
+    items: CollectionProperty(name="Representation Items", type=RepresentationItem)
+    active_item_index: IntProperty(name="Active Representation Item Index")


 class BIMGeometryProperties(PropertyGroup):
@@ -18,10 +18,16 @@

 import bpy
 import blenderbim.tool as tool
-from bpy.types import Panel
+from bpy.types import Panel, Menu, UIList
 from blenderbim.bim.ifc import IfcStore
 from blenderbim.bim.helper import prop_with_search
-from blenderbim.bim.module.geometry.data import RepresentationsData, ConnectionsData, DerivedPlacementsData
+from blenderbim.bim.module.geometry.data import (
+    RepresentationsData,
+    RepresentationItemsData,
+    ConnectionsData,
+    PlacementData,
+    DerivedCoordinatesData,
+)


 def object_menu(self, context):
@@ -29,6 +35,44 @@ def object_menu(self, context):
    self.layout.operator("bim.override_object_duplicate_move", icon="PLUGIN")
    self.layout.operator("bim.override_object_delete", icon="PLUGIN")
    self.layout.operator("bim.override_paste_buffer", icon="PLUGIN")
+    self.layout.menu("BIM_MT_object_set_origin", icon="PLUGIN")
+
+
+def edit_mesh_menu(self, context):
+    self.layout.separator()
+    self.layout.menu("BIM_MT_separate", icon="PLUGIN")
+
+
+class BIM_MT_separate(Menu):
+    bl_idname = "BIM_MT_separate"
+    bl_label = "IFC Separate"
+
+    def draw(self, context):
+        self.layout.operator("bim.override_mesh_separate", icon="PLUGIN", text="IFC Selection").type = "SELECTED"
+        self.layout.operator("bim.override_mesh_separate", icon="PLUGIN", text="IFC By Material").type = "MATERIAL"
+        self.layout.operator("bim.override_mesh_separate", icon="PLUGIN", text="IFC By Loose Parts").type = "LOOSE"
+
+
+class BIM_MT_object_set_origin(Menu):
+    bl_idname = "BIM_MT_object_set_origin"
+    bl_label = "IFC Set Origin"
+
+    def draw(self, context):
+        self.layout.operator(
+            "bim.override_origin_set", icon="PLUGIN", text="IFC Geometry to Origin"
+        ).origin_type = "GEOMETRY_ORIGIN"
+        self.layout.operator(
+            "bim.override_origin_set", icon="PLUGIN", text="IFC Origin to Geometry"
+        ).origin_type = "ORIGIN_GEOMETRY"
+        self.layout.operator(
+            "bim.override_origin_set", icon="PLUGIN", text="IFC Origin to 3D Cursor"
+        ).origin_type = "ORIGIN_CURSOR"
+        self.layout.operator(
+            "bim.override_origin_set", icon="PLUGIN", text="IFC Origin to Center of Mass (Surface)"
+        ).origin_type = "ORIGIN_CENTER_OF_MASS"
+        self.layout.operator(
+            "bim.override_origin_set", icon="PLUGIN", text="IFC Origin to Center of Mass (Volume)"
+        ).origin_type = "ORIGIN_CENTER_OF_VOLUME"


 def outliner_menu(self, context):
@@ -86,6 +130,53 @@ class BIM_PT_representations(Panel):
            row.operator("bim.remove_representation", icon="X", text="").representation_id = representation["id"]


+class BIM_PT_representation_items(Panel):
+    bl_label = "Representation Items"
+    bl_idname = "BIM_PT_representation_items"
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+    bl_order = 1
+    bl_parent_id = "BIM_PT_tab_representations"
+
+    @classmethod
+    def poll(cls, context):
+        if not context.active_object:
+            return False
+        if not IfcStore.get_element(context.active_object.BIMObjectProperties.ifc_definition_id):
+            return False
+        return IfcStore.get_file()
+
+    def draw(self, context):
+        if not RepresentationItemsData.is_loaded:
+            RepresentationItemsData.load()
+
+        props = context.active_object.BIMGeometryProperties
+
+        row = self.layout.row(align=True)
+        row.label(text=f"{RepresentationItemsData.data['total_items']} Items Found")
+
+        if props.is_editing:
+            row.operator("bim.disable_editing_representation_items", icon="CANCEL", text="")
+        else:
+            row.operator("bim.enable_editing_representation_items", icon="IMPORT", text="")
+            return
+
+        self.layout.template_list("BIM_UL_representation_items", "", props, "items", props, "active_item_index")
+
+        row = self.layout.row()
+        if RepresentationItemsData.data["active_surface_style"]:
+            row.label(text=RepresentationItemsData.data["active_surface_style"], icon="MATERIAL")
+        else:
+            row.label(text="No Surface Style", icon="MESH_UVSPHERE")
+
+        row = self.layout.row()
+        if RepresentationItemsData.data["active_layer"]:
+            row.label(text=RepresentationItemsData.data["active_layer"], icon="STICKY_UVS_LOC")
+        else:
+            row.label(text="No Presentation Layer", icon="STICKY_UVS_LOC")
+
+
 class BIM_PT_connections(Panel):
    bl_label = "Connections"
    bl_idname = "BIM_PT_connections"
@@ -111,7 +202,7 @@ class BIM_PT_connections(Panel):
        layout = self.layout
        props = context.active_object.BIMObjectProperties

-        if not ConnectionsData.data["connections"]:
+        if not ConnectionsData.data["connections"] and not ConnectionsData.data["is_connection_realization"]:
            layout.label(text="No connections found")

        for connection in ConnectionsData.data["connections"]:
@@ -123,6 +214,44 @@ class BIM_PT_connections(Panel):
            op = row.operator("bim.remove_connection", icon="X", text="")
            op.connection = connection["id"]

+            if connection["realizing_elements"]:
+                row = self.layout.row(align=True)
+                connection_type = connection["realizing_elements_connection_type"]
+                connection_type = f" ({connection_type})" if connection_type else ""
+                row.label(text=f"Realizing elements{connection_type}:")
+
+                for element in connection["realizing_elements"]:
+                    row = self.layout.row(align=True)
+                    obj = tool.Ifc.get_object(element)
+                    row.operator("bim.select_entity", text="", icon="RESTRICT_SELECT_OFF").ifc_id = element.id()
+                    row.label(text=obj.name)
+
+        # display connections where element is connection realization
+        connections = ConnectionsData.data["is_connection_realization"]
+        if not connections:
+            return
+
+        row = self.layout.row(align=True)
+        row.label(text="Element is connections realization:")
+        for connection in connections:
+            # NOTE: not displayed yet
+            connection_type = connection["realizing_elements_connection_type"]
+            connection_type = f" ({connection_type})" if connection_type else ""
+
+            row = self.layout.row(align=True)
+
+            connected_from = connection["connected_from"]
+            obj = tool.Ifc.get_object(connected_from)
+            row.operator("bim.select_entity", text="", icon="RESTRICT_SELECT_OFF").ifc_id = connected_from.id()
+            row.label(text=obj.name)
+
+            row.label(text="", icon="FORWARD")
+
+            connected_to = connection["connected_to"]
+            obj = tool.Ifc.get_object(connected_to)
+            row.operator("bim.select_entity", text="", icon="RESTRICT_SELECT_OFF").ifc_id = connected_to.id()
+            row.label(text=obj.name)
+

 class BIM_PT_mesh(Panel):
    bl_label = "Representation Utilities"
@@ -151,6 +280,9 @@ class BIM_PT_mesh(Panel):

        layout = self.layout

+        row = layout.row()
+        row.operator("bim.update_representation", text="Manually Save Representation")
+
        row = layout.row()
        row.operator("bim.copy_representation", text="Copy Mesh From Active To Selected")

@@ -174,50 +306,99 @@ class BIM_PT_mesh(Panel):
        op = row.operator("bim.update_representation", text="Convert To Arbitrary Extrusion With Voids")
        op.ifc_representation_class = "IfcExtrudedAreaSolid/IfcArbitraryProfileDefWithVoids"

-
-def BIM_PT_transform(self, context):
-    if context.active_object and context.active_object.BIMObjectProperties.ifc_definition_id:
-        row = self.layout.row(align=True)
-        row.label(text="Blender Offset")
-        row.label(text=context.active_object.BIMObjectProperties.blender_offset_type)
-
-        row = self.layout.row()
-        row.operator("bim.edit_object_placement")
+        if context.active_object and context.active_object.data:
+            mprops = context.active_object.data.BIMMeshProperties
+            row = layout.row()
+            row.operator("bim.get_representation_ifc_parameters")
+            for index, ifc_parameter in enumerate(mprops.ifc_parameters):
+                row = layout.row(align=True)
+                row.prop(ifc_parameter, "name", text="")
+                row.prop(ifc_parameter, "value", text="")
+                row.operator("bim.update_parametric_representation", icon="FILE_REFRESH", text="").index = index


-class BIM_PT_derived_placements(Panel):
-    bl_label = "Derived Placements"
-    bl_idname = "BIM_PT_derived_placements"
-    bl_options = {"DEFAULT_CLOSED"}
+class BIM_PT_placement(Panel):
+    bl_label = "Placement"
+    bl_idname = "BIM_PT_placement"
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
-    bl_context = "object"
+    bl_context = "scene"
    bl_order = 1
-    bl_parent_id = "OBJECT_PT_transform"
+    bl_parent_id = "BIM_PT_tab_placement"
+    bl_options = {"HIDE_HEADER"}
+
+    @classmethod
+    def poll(cls, context):
+        return context.active_object and context.active_object.BIMObjectProperties.ifc_definition_id

    def draw(self, context):
-        if not DerivedPlacementsData.is_loaded:
-            DerivedPlacementsData.load()
+        if not PlacementData.is_loaded:
+            PlacementData.load()
+
+        if PlacementData.data["has_placement"]:
+            row = self.layout.row()
+            row.prop(context.active_object, "location", text="Location")
+            row = self.layout.row()
+            row.prop(context.active_object, "rotation_euler", text="Rotation")
+        else:
+            row = self.layout.row()
+            row.label(text="No Object Placement Found")
+
+        if context.active_object.BIMObjectProperties.blender_offset_type != "NONE":
+            row = self.layout.row(align=True)
+            row.label(text="Blender Offset", icon="TRACKING_REFINE_FORWARDS")
+            row.label(text=context.active_object.BIMObjectProperties.blender_offset_type)
+
+
+class BIM_PT_derived_coordinates(Panel):
+    bl_label = "Derived Coordinates"
+    bl_idname = "BIM_PT_derived_coordinates"
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+    bl_order = 3
+    bl_parent_id = "BIM_PT_tab_placement"
+    bl_options = {"DEFAULT_CLOSED"}
+
+    @classmethod
+    def poll(cls, context):
+        return context.active_object is not None
+
+    def draw(self, context):
+        if not DerivedCoordinatesData.is_loaded:
+            DerivedCoordinatesData.load()
+
+        row = self.layout.row()
+        row.operator("bim.edit_object_placement", icon="EXPORT")
+
+        row = self.layout.row()
+        row.label(text="XYZ Dimensions")
+
+        row = self.layout.row(align=True)
+        row.enabled = False
+        row.prop(context.active_object, "dimensions", text="X", index=0, slider=True)
+        row.prop(context.active_object, "dimensions", text="Y", index=1, slider=True)
+        row.prop(context.active_object, "dimensions", text="Z", index=2, slider=True)

        row = self.layout.row(align=True)
        row.label(text="Min Global Z")
-        row.label(text=DerivedPlacementsData.data["min_global_z"])
+        row.label(text=DerivedCoordinatesData.data["min_global_z"])
        row = self.layout.row(align=True)
        row.label(text="Max Global Z")
-        row.label(text=DerivedPlacementsData.data["max_global_z"])
+        row.label(text=DerivedCoordinatesData.data["max_global_z"])

-        if DerivedPlacementsData.data["has_collection"]:
+        if DerivedCoordinatesData.data["has_collection"]:
            row = self.layout.row(align=True)
            row.label(text="Min Decomposed Z")
-            row.label(text=DerivedPlacementsData.data["min_decomposed_z"])
+            row.label(text=DerivedCoordinatesData.data["min_decomposed_z"])
            row = self.layout.row(align=True)
            row.label(text="Max Decomposed Z")
-            row.label(text=DerivedPlacementsData.data["max_decomposed_z"])
+            row.label(text=DerivedCoordinatesData.data["max_decomposed_z"])

-        if DerivedPlacementsData.data["is_storey"]:
+        if DerivedCoordinatesData.data["is_storey"]:
            row = self.layout.row(align=True)
            row.label(text="Storey Height")
-            row.label(text=DerivedPlacementsData.data["storey_height"])
+            row.label(text=DerivedCoordinatesData.data["storey_height"])


 class BIM_PT_workarounds(Panel):
@@ -246,3 +427,13 @@ class BIM_PT_workarounds(Panel):
        row.prop(props, "should_force_triangulation")
        row = self.layout.row()
        row.prop(props, "should_use_presentation_style_assignment")
+
+
+class BIM_UL_representation_items(UIList):
+    def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
+        if item:
+            icon = "MATERIAL" if item.surface_style else "MESH_UVSPHERE"
+            row = layout.row(align=True)
+            row.label(text=item.name, icon=icon)
+            if item.layer:
+                row.label(text="", icon="STICKY_UVS_LOC")
@@ -34,6 +34,7 @@ classes = (
    operator.GetCursorLocation,
    operator.SetCursorLocation,
    operator.ConvertAngleToCoordinates,
+    operator.ImportPlot,
    prop.BIMGeoreferenceProperties,
    ui.BIM_PT_gis,
    ui.BIM_PT_gis_utilities,
@@ -56,7 +56,12 @@ class GeoreferenceData:
    @classmethod
    def map_conversion(cls):
        if tool.Ifc.get_schema() == "IFC2X3":
-            return {}
+            project = tool.Ifc.get().by_type("IfcProject")[0]
+            map_conversion = ifcopenshell.util.element.get_pset(project, "ePSet_MapConversion")
+            if not map_conversion:
+                return {}
+            del map_conversion["id"]
+            return map_conversion

        for context in tool.Ifc.get().by_type("IfcGeometricRepresentationContext", include_subtypes=False):
            if context.HasCoordinateOperation:
@@ -72,8 +77,8 @@ class GeoreferenceData:
    def map_derived_angle(cls):
        if (
            cls.data["map_conversion"]
-            and cls.data["map_conversion"]["XAxisAbscissa"] is not None
-            and cls.data["map_conversion"]["XAxisOrdinate"] is not None
+            and cls.data["map_conversion"].get("XAxisAbscissa", None) is not None
+            and cls.data["map_conversion"].get("XAxisOrdinate", None) is not None
        ):
            return str(
                round(
@@ -88,7 +93,12 @@ class GeoreferenceData:
    @classmethod
    def projected_crs(cls):
        if tool.Ifc.get_schema() == "IFC2X3":
-            return {}
+            project = tool.Ifc.get().by_type("IfcProject")[0]
+            projected_crs = ifcopenshell.util.element.get_pset(project, "ePSet_ProjectedCRS")
+            if not projected_crs:
+                return {}
+            del projected_crs["id"]
+            return projected_crs

        for context in tool.Ifc.get().by_type("IfcGeometricRepresentationContext", include_subtypes=False):
            if context.HasCoordinateOperation:
@@ -76,7 +76,7 @@ class SetIfcGridNorth(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.set_ifc_grid_north"
    bl_label = "Set IFC Grid North"
    bl_options = {"REGISTER", "UNDO"}
-    bl_description = "Set IFC grid north"
+    bl_description = "Set IFC grid north based on current Blender North Offset"

    def _execute(self, context):
        core.set_ifc_grid_north(tool.Georeference)
@@ -86,7 +86,7 @@ class SetBlenderGridNorth(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.set_blender_grid_north"
    bl_label = "Set Blender Grid North"
    bl_options = {"REGISTER", "UNDO"}
-    bl_description = "Set Blender grid north"
+    bl_description = "Set Blender North Offset based on current IFC grid north"

    def _execute(self, context):
        core.set_blender_grid_north(tool.Georeference)
@@ -110,7 +110,7 @@ class SetCursorLocation(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.set_cursor_location"
    bl_label = "Set Cursor Location"
    bl_options = {"REGISTER", "UNDO"}
-    bl_description = "Move curson location to the specified coordinates"
+    bl_description = "Move cursor location to the specified coordinates"

    @classmethod
    def poll(cls, context):
@@ -125,7 +125,7 @@ class SetIfcTrueNorth(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.set_ifc_true_north"
    bl_label = "Set IFC True North"
    bl_options = {"REGISTER", "UNDO"}
-    bl_description = "Set IFC True north"
+    bl_description = "Set IFC true north based on current Blender North Offset"

    def _execute(self, context):
        core.set_ifc_true_north(tool.Georeference)
@@ -135,7 +135,7 @@ class SetBlenderTrueNorth(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.set_blender_true_north"
    bl_label = "Set Blender True North"
    bl_options = {"REGISTER", "UNDO"}
-    bl_description = "Set Blender true north"
+    bl_description = "Set Blender North Offset based on current IFC true north"

    def _execute(self, context):
        core.set_blender_true_north(tool.Georeference)
@@ -187,3 +187,20 @@ class ConvertAngleToCoordinates(bpy.types.Operator, tool.Ifc.Operator):

    def _execute(self, context):
        core.convert_angle_to_coord(tool.Georeference, type=self.type)
+
+
+class ImportPlot(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.import_plot"
+    bl_label = "Import Plot"
+    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Import plot"
+    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
+    filter_glob: bpy.props.StringProperty(default="*.csv", options={"HIDDEN"})
+
+    def execute(self, context):
+        core.import_plot(tool.Georeference, filepath=self.filepath)
+        return {"FINISHED"}
+
+    def invoke(self, context, event):
+        context.window_manager.fileselect_add(self)
+        return {"RUNNING_MODAL"}
@@ -29,7 +29,7 @@ class BIM_PT_gis(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_geometry"
+    bl_parent_id = "BIM_PT_tab_geometry"

    def draw(self, context):
        self.layout.use_property_split = True
@@ -78,10 +78,14 @@ class BIM_PT_gis(Panel):
    def draw_ui(self, context):
        props = context.scene.BIMGeoreferenceProperties

+        if tool.Ifc.get_schema() == "IFC2X3":
+            row = self.layout.row()
+            row.label(text="IFC2X3 Fallback In Use", icon="ERROR")
+
        if not GeoreferenceData.data["projected_crs"]:
            row = self.layout.row(align=True)
            row.label(text="Not Georeferenced")
-            if tool.Ifc.get_schema != "IFC2X3":
+            if tool.Ifc.get_schema() != "IFC2X3":
                row.operator("bim.add_georeferencing", icon="ADD", text="")

        if props.has_blender_offset:
@@ -110,8 +114,9 @@ class BIM_PT_gis(Panel):
        if GeoreferenceData.data["projected_crs"]:
            row = self.layout.row(align=True)
            row.label(text="Projected CRS", icon="WORLD")
-            row.operator("bim.enable_editing_georeferencing", icon="GREASEPENCIL", text="")
-            row.operator("bim.remove_georeferencing", icon="X", text="")
+            if tool.Ifc.get_schema() != "IFC2X3":
+                row.operator("bim.enable_editing_georeferencing", icon="GREASEPENCIL", text="")
+                row.operator("bim.remove_georeferencing", icon="X", text="")

        for key, value in GeoreferenceData.data["projected_crs"].items():
            if not value:
@@ -184,4 +189,4 @@ class BIM_PT_gis_utilities(Panel):
        row = self.layout.row(align=True)
        row.prop(props, "y_axis_abscissa_output", text="North Abscissa")
        row = self.layout.row(align=True)
-        row.prop(props, "y_axis_ordinate_output", text="North Ordinate")
+        row.prop(props, "y_axis_ordinate_output", text="North Ordinate")
@@ -11,7 +11,7 @@ class IFCGIT_PT_panel(bpy.types.Panel):
    bl_region_type = "WINDOW"
    bl_context = "scene"
    bl_options = {"DEFAULT_CLOSED"}
-    bl_parent_id = "BIM_PT_project_info"
+    bl_parent_id = "BIM_PT_tab_project_info"

    def draw(self, context):

@@ -63,7 +63,7 @@ class EnableEditingLayer(bpy.types.Operator):
    def execute(self, context):
        props = context.scene.BIMLayerProperties
        props.layer_attributes.clear()
-        blenderbim.bim.helper.import_attributes(tool.Ifc.get().by_id(self.layer), props.layer_attributes)
+        blenderbim.bim.helper.import_attributes2(tool.Ifc.get().by_id(self.layer), props.layer_attributes)
        props.active_layer_id = self.layer
        return {"FINISHED"}

@@ -29,7 +29,7 @@ class BIM_PT_libraries(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_project_setup"
+    bl_parent_id = "BIM_PT_tab_project_setup"

    @classmethod
    def poll(cls, context):
@@ -40,10 +40,12 @@ classes = (
    operator.EditMaterial,
    operator.EditMaterialSetItem,
    operator.EditMaterialSetItemProfile,
+    operator.EditMaterialStyle,
    operator.EnableEditingAssignedMaterial,
    operator.EnableEditingMaterial,
    operator.EnableEditingMaterialSetItem,
    operator.EnableEditingMaterialSetItemProfile,
+    operator.EnableEditingMaterialStyle,
    operator.ExpandMaterialCategory,
    operator.LoadMaterials,
    operator.RemoveConstituent,
@@ -55,6 +57,7 @@ classes = (
    operator.ReorderMaterialSetItem,
    operator.SelectByMaterial,
    operator.UnassignMaterial,
+    operator.UnassignMaterialStyle,
    operator.UnlinkMaterial,
    prop.Material,
    prop.BIMMaterialProperties,
@@ -38,6 +38,9 @@ class MaterialsData:
            "total_materials": cls.total_materials(),
            "material_types": cls.material_types(),
            "profiles": cls.profiles(),
+            "styles": cls.styles(),
+            "contexts": cls.contexts(),
+            "active_styles": cls.active_styles(),
        }
        cls.is_loaded = True

@@ -79,6 +82,58 @@ class MaterialsData:
            if p.ProfileName
        ]

+    @classmethod
+    def contexts(cls):
+        results = []
+        for element in tool.Ifc.get().by_type("IfcGeometricRepresentationContext", include_subtypes=False):
+            results.append((str(element.id()), element.ContextType or "Unnamed", ""))
+        for element in tool.Ifc.get().by_type("IfcGeometricRepresentationSubContext", include_subtypes=False):
+            results.append(
+                (
+                    str(element.id()),
+                    "{}/{}/{}".format(
+                        element.ContextType or "Unnamed",
+                        element.ContextIdentifier or "Unnamed",
+                        element.TargetView or "Unnamed",
+                    ),
+                    "",
+                )
+            )
+        return results
+
+    @classmethod
+    def styles(cls):
+        return [(str(s.id()), s.Name or "Unnamed", "") for s in tool.Ifc.get().by_type("IfcSurfaceStyle") if s.Name]
+
+    @classmethod
+    def active_styles(cls):
+        props = bpy.context.scene.BIMMaterialProperties
+        results = []
+        if props.materials and props.active_material_index < len(props.materials):
+            material = props.materials[props.active_material_index].ifc_definition_id
+            if not material:
+                return results
+            material = tool.Ifc.get().by_id(material)
+            for definition in material.HasRepresentation:
+                for representation in definition.Representations:
+                    if not representation.is_a("IfcStyledRepresentation"):
+                        continue
+                    context = representation.ContextOfItems
+                    for item in representation.Items:
+                        if not item.is_a("IfcStyledItem"):
+                            continue
+                        for style in item.Styles:
+                            if style.is_a("IfcSurfaceStyle"):
+                                results.append({
+                                    "context_type": context.ContextType,
+                                    "context_identifier": getattr(context, "ContextIdentifier", ""),
+                                    "target_view": getattr(context, "TargetView", ""),
+                                    "name": style.Name or "Unnamed",
+                                    "id": style.id(),
+                                    "context_id": context.id(),
+                                })
+        return results
+

 class ObjectMaterialData:
    data = {}
@@ -173,6 +228,8 @@ class ObjectMaterialData:
                items = cls.material.MaterialProfiles
            elif cls.material.is_a("IfcMaterialConstituentSet"):
                items = cls.material.MaterialConstituents
+            elif cls.material.is_a("IfcMaterialList"):
+                items = cls.material.Materials

            icon = "LAYER_ACTIVE"
            if "Layer" in cls.material.is_a():
@@ -191,7 +248,9 @@ class ObjectMaterialData:
                        data["name"] = "No Profile"
                if item.is_a("IfcMaterialLayer"):
                    data["name"] += f" ({item.LayerThickness})"
-                if not item.is_a("IfcMaterialList"):
+                if item.is_a("IfcMaterial"):
+                    data["material"] = item.Name or "Unnamed"
+                else:
                    data["material"] = item.Material.Name or "Unnamed"
                results.append(data)
        return results
@@ -118,10 +118,18 @@ class AddMaterial(bpy.types.Operator, tool.Ifc.Operator):
    bl_label = "Add Material"
    bl_options = {"REGISTER", "UNDO"}
    obj: bpy.props.StringProperty()
+    name: bpy.props.StringProperty(default="Default")
+
+    def invoke(self, context, event):
+        return context.window_manager.invoke_props_dialog(self)
+
+    def draw(self, context):
+        row = self.layout
+        row.prop(self, "name", text="Name")

    def _execute(self, context):
        obj = bpy.data.materials.get(self.obj) if self.obj else None
-        core.add_material(tool.Ifc, tool.Material, tool.Style, obj=obj)
+        core.add_material(tool.Ifc, tool.Material, tool.Style, obj=obj, name=self.name)
        material_prop_purge()


@@ -174,7 +182,7 @@ class AssignMaterial(bpy.types.Operator, tool.Ifc.Operator):

    def _execute(self, context):
        objects = [bpy.data.objects.get(self.obj)] if self.obj else tool.Blender.get_selected_objects()
-        core.assign_material(tool.Ifc, tool.Material, material_type= self.material_type , objects=objects )
+        core.assign_material(tool.Ifc, tool.Material, material_type=self.material_type, objects=objects)


 class UnassignMaterial(bpy.types.Operator, tool.Ifc.Operator):
@@ -185,7 +193,7 @@ class UnassignMaterial(bpy.types.Operator, tool.Ifc.Operator):

    def _execute(self, context):
        objects = [bpy.data.objects.get(self.obj)] if self.obj else tool.Blender.get_selected_objects()
-        core.unassign_material(tool.Ifc, tool.Material, objects=objects )
+        core.unassign_material(tool.Ifc, tool.Material, objects=objects)


 class AddConstituent(bpy.types.Operator, tool.Ifc.Operator):
@@ -350,10 +358,8 @@ class AddListItem(bpy.types.Operator, tool.Ifc.Operator):
        ifcopenshell.api.run(
            "material.add_list_item",
            self.file,
-            **{
-                "material_list": self.file.by_id(self.list_item_set),
-                "material": self.file.by_id(int(obj.BIMObjectMaterialProperties.material)),
-            },
+            material_list=self.file.by_id(self.list_item_set),
+            material=self.file.by_id(int(obj.BIMObjectMaterialProperties.material)),
        )


@@ -709,3 +715,50 @@ class ContractMaterialCategory(bpy.types.Operator):
            category.is_expanded = False
        core.load_materials(tool.Material, props.material_type)
        return {"FINISHED"}
+
+
+class EnableEditingMaterialStyle(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.enable_editing_material_style"
+    bl_label = "Enable Editing Material Style"
+    bl_options = {"REGISTER", "UNDO"}
+    material: bpy.props.IntProperty()
+
+    def _execute(self, context):
+        props = bpy.context.scene.BIMMaterialProperties
+        props.active_material_id = self.material
+        props.editing_material_type = "STYLE"
+
+
+class EditMaterialStyle(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.edit_material_style"
+    bl_label = "Edit Material Style"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def _execute(self, context):
+        props = bpy.context.scene.BIMMaterialProperties
+        material = tool.Ifc.get().by_id(props.active_material_id)
+        style = tool.Ifc.get().by_id(int(props.styles))
+        context = tool.Ifc.get().by_id(int(props.contexts))
+        ifcopenshell.api.run(
+            "style.assign_material_style", tool.Ifc.get(), material=material, style=style, context=context
+        )
+        tool.Material.disable_editing_material()
+        core.load_materials(tool.Material, props.material_type)
+
+
+class UnassignMaterialStyle(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.unassign_material_style"
+    bl_label = "Unassign Material Style"
+    bl_options = {"REGISTER", "UNDO"}
+    style: bpy.props.IntProperty()
+    context: bpy.props.IntProperty()
+
+    def _execute(self, context):
+        props = bpy.context.scene.BIMMaterialProperties
+        material = tool.Ifc.get().by_id(props.materials[props.active_material_index].ifc_definition_id)
+        style = tool.Ifc.get().by_id(self.style)
+        context = tool.Ifc.get().by_id(self.context)
+        ifcopenshell.api.run(
+            "style.unassign_material_style", tool.Ifc.get(), material=material, style=style, context=context
+        )
+        core.load_materials(tool.Material, props.material_type)
@@ -103,11 +103,24 @@ def get_profiles(self, context):
    return MaterialsData.data["profiles"]


+def get_styles(self, context):
+    if not MaterialsData.is_loaded:
+        MaterialsData.load()
+    return MaterialsData.data["styles"]
+
+
+def get_contexts(self, context):
+    if not MaterialsData.is_loaded:
+        MaterialsData.load()
+    return MaterialsData.data["contexts"]
+
+
 class Material(PropertyGroup):
    name: StringProperty(name="Name")
    ifc_definition_id: IntProperty(name="IFC Definition ID")
    is_category: BoolProperty(name="Is Category", default=False)
    is_expanded: BoolProperty(name="Is Expanded", default=True)
+    has_style: BoolProperty(name="Has Style", default=True)
    total_elements: IntProperty(name="Total Elements")


@@ -119,7 +132,9 @@ class BIMMaterialProperties(PropertyGroup):
    profiles: EnumProperty(items=get_profiles, name="Profiles")
    active_material_id: IntProperty(name="Active Material ID")
    material_attributes: CollectionProperty(name="Material Attributes", type=Attribute)
-    editing_material_type = StringProperty(name="Editing Material Type")
+    editing_material_type: StringProperty(name="Editing Material Type")
+    styles: EnumProperty(items=get_styles, name="Styles")
+    contexts: EnumProperty(items=get_contexts, name="Contexts")


 class BIMObjectMaterialProperties(PropertyGroup):
@@ -28,11 +28,11 @@ from blenderbim.bim.module.material.data import MaterialsData, ObjectMaterialDat
 class BIM_PT_materials(Panel):
    bl_label = "Materials"
    bl_idname = "BIM_PT_materials"
-    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_geometry"
+    bl_parent_id = "BIM_PT_tab_materials"
+    bl_options = {"HIDE_HEADER"}

    @classmethod
    def poll(cls, context):
@@ -45,11 +45,10 @@ class BIM_PT_materials(Panel):
        self.props = context.scene.BIMMaterialProperties

        row = self.layout.row(align=True)
-        row.label(text="{} Materials Found".format(MaterialsData.data["total_materials"]), icon="MATERIAL")
+        row.label(text="{} Materials".format(MaterialsData.data["total_materials"]), icon="NODE_MATERIAL")
        if self.props.is_editing:
            row.operator("bim.disable_editing_materials", text="", icon="CANCEL")
        else:
-            row = self.layout.row(align=True)
            prop_with_search(row, self.props, "material_type", text="")
            row.operator("bim.load_materials", text="", icon="IMPORT")
            return
@@ -58,21 +57,19 @@ class BIM_PT_materials(Panel):
        row.alignment = "RIGHT"

        if self.props.material_type == "IfcMaterial":
+            row.operator("bim.add_material", text="", icon="ADD")
            if self.props.materials and self.props.active_material_index < len(self.props.materials):
                material = self.props.materials[self.props.active_material_index]
                if material.ifc_definition_id:
-                    if self.props.active_material_id:
-                        row.operator("bim.edit_material", text="", icon="CHECKMARK").material = material.ifc_definition_id
-                        row.operator("bim.disable_editing_material", text="", icon="CANCEL").material = material.ifc_definition_id
-                        self.draw_editable_material_attributes_ui()
-                    else:
-                        row.operator("bim.add_material", text="", icon="ADD")
-                        op = row.operator("bim.select_by_material", text="", icon="RESTRICT_SELECT_OFF")
-                        op.material = material.ifc_definition_id
-                        row.operator("bim.enable_editing_material", text="", icon="GREASEPENCIL").material = material.ifc_definition_id
-                        row.operator("bim.remove_material", text="", icon="X").material = material.ifc_definition_id
-            else:
-                row.operator("bim.add_material", text="", icon="ADD")
+                    op = row.operator("bim.select_by_material", text="", icon="RESTRICT_SELECT_OFF")
+                    op.material = material.ifc_definition_id
+                    op = row.operator("bim.enable_editing_material", text="", icon="GREASEPENCIL")
+                    op.material = material.ifc_definition_id
+                    op = row.operator("bim.enable_editing_material_style", text="", icon="SHADING_RENDERED")
+                    op.material = material.ifc_definition_id
+                    row.operator("bim.remove_material", text="", icon="X").material = material.ifc_definition_id
+
+            self.draw_editing_ui()
        else:
            row.operator("bim.add_material_set", text="", icon="ADD").set_type = self.props.material_type
            if self.props.materials and self.props.active_material_index < len(self.props.materials):
@@ -84,9 +81,34 @@ class BIM_PT_materials(Panel):

        self.layout.template_list("BIM_UL_materials", "", self.props, "materials", self.props, "active_material_index")

+        for style in MaterialsData.data["active_styles"]:
+            row = self.layout.row(align=True)
+            row.label(text="", icon="SHADING_RENDERED")
+            row.label(text=style["context_type"])
+            row.label(text=style["context_identifier"])
+            row.label(text=style["target_view"])
+            row.label(text=style["name"])
+            op = row.operator("bim.unassign_material_style", text="", icon="X")
+            op.style = style["id"]
+            op.context = style["context_id"]
+
+    def draw_editing_ui(self):
+        if not self.props.active_material_id:
+            return
+        ifc_definition_id = self.props.active_material_id
+        if self.props.editing_material_type == "ATTRIBUTES":
+            blenderbim.bim.helper.draw_attributes(self.props.material_attributes, self.layout)
+            row = self.layout.row(align=True)
+            row.operator("bim.edit_material", text="Save Material", icon="CHECKMARK").material = ifc_definition_id
+            row.operator("bim.disable_editing_material", text="", icon="CANCEL")
+        elif self.props.editing_material_type == "STYLE":
+            row = self.layout.row(align=True)
+            row.prop(self.props, "contexts", text="")
+            row.prop(self.props, "styles", text="")
+            row = self.layout.row(align=True)
+            row.operator("bim.edit_material_style", text="Assign Style", icon="CHECKMARK")
+            row.operator("bim.disable_editing_material", text="", icon="CANCEL")

-    def draw_editable_material_attributes_ui(self):
-        blenderbim.bim.helper.draw_attributes(self.props.material_attributes, self.layout)

 class BIM_PT_material(Panel):
    bl_label = "Material"
@@ -221,9 +243,7 @@ class BIM_PT_object_material(Panel):
            elif self.props.active_material_set_item_id == set_item["id"]:
                self.draw_editable_set_item_ui(set_item)
            else:
-                self.draw_read_only_set_item_ui(
-                    set_item, index, is_first=index == 0, is_last=index == total_items - 1
-                )
+                self.draw_read_only_set_item_ui(set_item, index, is_first=index == 0, is_last=index == total_items - 1)

    def draw_editable_set_item_profile_ui(self, set_item):
        box = self.layout.box()
@@ -269,7 +289,10 @@ class BIM_PT_object_material(Panel):
            op.old_index = index
            op.new_index = index + 1
            setattr(op, "material_set", ObjectMaterialData.data["set"]["id"])
-        if not self.props.active_material_set_item_id and ObjectMaterialData.data["material_class"] != "IfcMaterialList":
+        if (
+            not self.props.active_material_set_item_id
+            and ObjectMaterialData.data["material_class"] != "IfcMaterialList"
+        ):
            if "Profile" in ObjectMaterialData.data["material_class"]:
                op = row.operator("bim.enable_editing_material_set_item_profile", icon="ITALIC", text="")
                op.material_set_item = set_item["id"]
@@ -285,9 +308,11 @@ class BIM_PT_object_material(Panel):
            setattr(op, f"{ObjectMaterialData.data['set_item_name']}_index", index)

    def draw_read_only_set_ui(self):
-        row = self.layout.row(align=True)
-        row.label(text="Name")
-        row.label(text=ObjectMaterialData.data["set"]["name"])
+        if ObjectMaterialData.data["material_class"] != "IfcMaterialList":
+            row = self.layout.row(align=True)
+            row.label(text="Name")
+            row.label(text=ObjectMaterialData.data["set"]["name"])
+
        if ObjectMaterialData.data["set"]["description"]:
            row = self.layout.row(align=True)
            row.label(text="Description")
@@ -336,3 +361,6 @@ class BIM_UL_materials(UIList):
                row2 = row.row()
                row2.alignment = "RIGHT"
                row2.label(text=str(item.total_elements))
+
+                if item.has_style:
+                    row2.label(text="", icon="SHADING_RENDERED")
@@ -22,6 +22,7 @@ import ifcopenshell
 import blenderbim.bim.handler
 import blenderbim.tool as tool
 import blenderbim.core.misc as core
+import blenderbim.core.geometry as core_geometry
 from blenderbim.bim.ifc import IfcStore
 from mathutils import Vector, Matrix, Euler

@@ -140,7 +141,51 @@ class SplitAlongEdge(bpy.types.Operator, Operator):
        return context.selected_objects and tool.Ifc.get()

    def _execute(self, context):
-        core.split_along_edge(tool.Misc, cutter=context.active_object, objs=context.selected_objects)
+        cutter = context.active_object
+        objs = [o for o in context.selected_objects if o != cutter]
+
+        # Splitting only works on meshes
+        for obj in objs:
+            # You cannot split meshes if the representation is mapped.
+            element = tool.Ifc.get_entity(obj)
+            if element:
+                relating_type = tool.Root.get_element_type(element)
+                if relating_type and tool.Root.does_type_have_representations(relating_type):
+                    bpy.ops.bim.unassign_type(related_object=obj.name)
+
+            representation = tool.Geometry.get_active_representation(obj)
+            core_geometry.switch_representation(
+                tool.Ifc,
+                tool.Geometry,
+                obj=obj,
+                representation=representation,
+                should_reload=True,
+                is_global=True,
+                should_sync_changes_first=False,
+                apply_openings=False,
+            )
+
+            if not tool.Geometry.is_meshlike(representation):
+                bpy.ops.bim.update_representation(obj=obj.name, ifc_representation_class="IfcTessellatedFaceSet")
+
+        new_objs = tool.Misc.split_objects_with_cutter(objs, cutter)
+        for obj in new_objs:
+            blenderbim.core.root.copy_class(tool.Ifc, tool.Collector, tool.Geometry, tool.Root, obj=obj)
+            bpy.ops.bim.update_representation(obj=obj.name)
+        for obj in objs:
+            bpy.ops.bim.update_representation(obj=obj.name)
+
+            representation = tool.Geometry.get_active_representation(obj)
+            core_geometry.switch_representation(
+                tool.Ifc,
+                tool.Geometry,
+                obj=obj,
+                representation=representation,
+                should_reload=True,
+                is_global=True,
+                should_sync_changes_first=False,
+                apply_openings=True,
+            )


 class GetConnectedSystemElements(bpy.types.Operator, Operator):
@@ -205,46 +250,50 @@ class DrawSystemArrows(bpy.types.Operator, Operator):
        return context.selected_objects and tool.Ifc.get()

    def _execute(self, context):
-        unit_scale = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
-        curve = bpy.data.objects.new("System Arrows", bpy.data.curves.new("System Arrows", "CURVE"))
-        curve.data.dimensions = "3D"
-        context.scene.collection.objects.link(curve)
+        sinks = []
+        sources = []
+
        for obj in bpy.context.selected_objects:
            if not obj.BIMObjectProperties.ifc_definition_id:
                continue
+
            element = tool.Ifc.get_entity(obj)
-            sources = []
-            sinks = []
-            for rel in getattr(element, "HasPorts", []) or []:
-                if rel.RelatingPort.FlowDirection == "SOURCE":
-                    sources.append(
-                        self.get_absolute_matrix(
-                            ifcopenshell.util.placement.get_local_placement(rel.RelatingPort.ObjectPlacement)
-                        )
-                    )
-                elif rel.RelatingPort.FlowDirection == "SINK":
-                    sinks.append(
-                        self.get_absolute_matrix(
-                            ifcopenshell.util.placement.get_local_placement(rel.RelatingPort.ObjectPlacement)
-                        )
-                    )
+            sources_current = []
+            sinks_current = []
+
+            for port in tool.System.get_ports(element):
+                local_placement = ifcopenshell.util.placement.get_local_placement(port.ObjectPlacement)
+                m = self.get_absolute_matrix(local_placement)
+                if port.FlowDirection == "SOURCE":
+                    sources_current.append(m)
+                elif port.FlowDirection == "SINK":
+                    sinks_current.append(m)
                else:
-                    sources.append(
-                        self.get_absolute_matrix(
-                            ifcopenshell.util.placement.get_local_placement(rel.RelatingPort.ObjectPlacement)
-                        )
-                    )
-                    sinks.append(
-                        self.get_absolute_matrix(
-                            ifcopenshell.util.placement.get_local_placement(rel.RelatingPort.ObjectPlacement)
-                        )
-                    )
-            for sink in sinks:
-                for source in sources:
+                    sources_current.append(m)
+                    sinks_current.append(m)
+
+                if sinks_current or sources_current:
+                    sinks.append(sinks_current)
+                    sources.append(sources_current)
+
+        if not sinks:
+            self.report({"INFO"}, "No sinks/sources found for selected objects.")
+            return {"FINISHED"}
+
+        unit_scale = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
+        curve = bpy.data.objects.new("System Arrows", bpy.data.curves.new("System Arrows", "CURVE"))
+        curve.data.dimensions = "3D"
+        curve.show_in_front = True
+        context.scene.collection.objects.link(curve)
+
+        for i in range(len(sinks)):
+            for sink in sinks[i]:
+                for source in sources[i]:
                    polyline = curve.data.splines.new("POLY")
                    polyline.points.add(1)
                    polyline.points[0].co = (Matrix(sink).translation * unit_scale).to_4d()
                    polyline.points[1].co = (Matrix(source).translation * unit_scale).to_4d()
+        tool.Blender.select_and_activate_single_object(context, curve)

    def get_absolute_matrix(self, matrix):
        props = bpy.context.scene.BIMGeoreferenceProperties
--- a/Show More
+++ b/Show More