MEP bends - more robust start/end points detection

also support for bends with angles > 90 degrees and some other bugs fixed
Implement COBie type and component tables
2026-08-21 12:36:00 +00:00 · 2023-09-11 16:28:14 +05:00 · 2023-09-11 18:31:37 +10:00 · 2023-09-10 18:27:05 +10:00 · 2023-09-10 17:38:07 +10:00 · 2023-09-10 17:36:07 +10:00
341 changed files with 994263 additions and 4805 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
@@ -88,6 +88,7 @@ jobs:
          sudo /usr/bin/python -m pip install networkx
          sudo /usr/bin/python -m pip install tabulate
          sudo /usr/bin/python -m pip install python-dateutil
+          sudo /usr/bin/python -m pip install mathutils

      - name: Test
        run: |
@@ -114,6 +114,7 @@ jobs:
          sudo /usr/bin/python -m pip install https://github.com/Andrej730/aud/archive/refs/heads/master-reduced-size.zip
          sudo /usr/bin/python -m pip install tabulate
          sudo /usr/bin/python -m pip install python-dateutil
+          sudo /usr/bin/python -m pip install mathutils

      - name: Test
        run: |
@@ -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
@@ -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
@@ -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
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@@ -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
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 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-$(PYNUMBER)-v0.7.0-9cc1f5f-$(PLATFORM)64.zip
 	cd dist/working && unzip ifcopenshell-python*
 	cp -r dist/working/ifcopenshell dist/blenderbim/libs/site/packages/

@@ -376,6 +381,10 @@ 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 && $(PIP) install cjio --target=./site-packages
 	# Provides express rule validation for ifcopenshell.validate
@@ -426,8 +435,7 @@ ifeq ($(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 $(QHULL_URL)
 	cd dist/working && tar -xf qhull*
@@ -440,8 +448,10 @@ endif
 ifeq ($(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 +486,7 @@ 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

@@ -590,20 +600,6 @@ endif
 	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
@@ -145,11 +145,17 @@ classes = [
    ui.BIM_PT_tab_services_object,
    # 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.,$,.CUBIC_METRE.);
-#7=IFCUNITASSIGNMENT((#6,#4,#5));
+#7=IFCUNITASSIGNMENT((#5,#6,#4));
 #8=IFCCARTESIANPOINT((0.,0.,0.));
 #9=IFCDIRECTION((0.,0.,1.));
 #10=IFCDIRECTION((1.,0.,0.));
@@ -25,82 +25,82 @@ DATA;
 #18=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Body','Plan',*,*,*,*,#16,$,.PLAN_VIEW.,$);
 #19=IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Annotation','Plan',*,*,*,*,#16,$,.PLAN_VIEW.,$);
 #20=IFCMATERIAL('Unknown',$,$);
-#21=IFCWALLTYPE('3U0gAUglf9WBlcfpB15EK0',$,'WAL50',$,$,$,$,$,$,.NOTDEFINED.);
+#21=IFCWALLTYPE('2o8NqQQbHA5BeErrgwfr7d',$,'WAL50',$,$,$,$,$,$,.NOTDEFINED.);
 #22=IFCMATERIALLAYERSET((#24),$,$);
-#23=IFCRELASSOCIATESMATERIAL('3J36H22Gz1ovVzdiKgApaM',$,$,$,(#21),#22);
+#23=IFCRELASSOCIATESMATERIAL('1Q$5DZKr98n82Eitz2dWey',$,$,$,(#21),#22);
 #24=IFCMATERIALLAYER(#20,0.05,$,$,$,$,$);
-#25=IFCRELDECLARES('28ApgMJzH10h$Ng$fmCpYf',$,$,$,#2,(#63,#21,#54,#87,#153,#34,#67,#210,#38,#82,#77,#42,#26,#48,#72,#59,#92,#30,#96));
-#26=IFCWALLTYPE('1wGfdUdC10TuASJo4jnO99',$,'WAL100',$,$,$,$,$,$,.NOTDEFINED.);
+#25=IFCRELDECLARES('1KXKUEn8z0g8lvyEsCTWD3',$,$,$,#2,(#38,#82,#77,#42,#26,#48,#72,#59,#92,#30,#96,#63,#21,#54,#87,#153,#34,#67,#210));
+#26=IFCWALLTYPE('3KlIOv_P9A79tkt8D_jq_m',$,'WAL100',$,$,$,$,$,$,.NOTDEFINED.);
 #27=IFCMATERIALLAYERSET((#29),$,$);
-#28=IFCRELASSOCIATESMATERIAL('0NRoxSQPzCgQHfsu5ru91z',$,$,$,(#26),#27);
+#28=IFCRELASSOCIATESMATERIAL('32B9Wx8Z1FxhIN7m77MiHG',$,$,$,(#26),#27);
 #29=IFCMATERIALLAYER(#20,0.1,$,$,$,$,$);
-#30=IFCWALLTYPE('1lt5MuGLLDfwmZd0tNruF7',$,'WAL200',$,$,$,$,$,$,.NOTDEFINED.);
+#30=IFCWALLTYPE('2DqrSeel1AGw6h3b$ujafZ',$,'WAL200',$,$,$,$,$,$,.NOTDEFINED.);
 #31=IFCMATERIALLAYERSET((#33),$,$);
-#32=IFCRELASSOCIATESMATERIAL('21rGVxPODC$xmWYFaDy1T6',$,$,$,(#30),#31);
+#32=IFCRELASSOCIATESMATERIAL('2FeYUpt3D4tAvwgGmwXWZn',$,$,$,(#30),#31);
 #33=IFCMATERIALLAYER(#20,0.2,$,$,$,$,$);
-#34=IFCWALLTYPE('0NZm1D8h12xAxyW7fL5nc1',$,'WAL300',$,$,$,$,$,$,.NOTDEFINED.);
+#34=IFCWALLTYPE('2jNdEOFIP1eQb3WZePlFGY',$,'WAL300',$,$,$,$,$,$,.NOTDEFINED.);
 #35=IFCMATERIALLAYERSET((#37),$,$);
-#36=IFCRELASSOCIATESMATERIAL('2yvmN42crCJevtirp5cMeV',$,$,$,(#34),#35);
+#36=IFCRELASSOCIATESMATERIAL('2bFeM6xevAwucuwMlauX77',$,$,$,(#34),#35);
 #37=IFCMATERIALLAYER(#20,0.3,$,$,$,$,$);
-#38=IFCCOVERINGTYPE('1eb4wZ_5n6xRGrs3rlKMiM',$,'COV10',$,$,$,$,$,$,.NOTDEFINED.);
+#38=IFCCOVERINGTYPE('3310gCgH59w9tu$DfmiCEN',$,'COV10',$,$,$,$,$,$,.NOTDEFINED.);
 #39=IFCMATERIALLAYERSET((#41),$,$);
-#40=IFCRELASSOCIATESMATERIAL('3HKIKf06T6xRqM6Lp69$OM',$,$,$,(#38),#39);
+#40=IFCRELASSOCIATESMATERIAL('3pTNmWd_jBoOWyHc8Yf4qI',$,$,$,(#38),#39);
 #41=IFCMATERIALLAYER(#20,0.01,$,$,$,$,$);
-#42=IFCCOVERINGTYPE('2E89aYmtrEfxhX_jsNqviN',$,'COV20',$,$,(#46),$,$,$,.NOTDEFINED.);
+#42=IFCCOVERINGTYPE('2sksWFuPzCgeNk1ofXS6PZ',$,'COV20',$,$,(#46),$,$,$,.NOTDEFINED.);
 #43=IFCMATERIALLAYERSET((#45),$,$);
-#44=IFCRELASSOCIATESMATERIAL('2115lEhhP4Z9G1Yhd_DqSC',$,$,$,(#42),#43);
+#44=IFCRELASSOCIATESMATERIAL('36rl5NddT1ux6ejkQAkT2z',$,$,$,(#42),#43);
 #45=IFCMATERIALLAYER(#20,0.02,$,$,$,$,$);
-#46=IFCPROPERTYSET('0vtU63YmjAgg8DeHlTgNx7',$,'EPset_Parametric',$,(#47));
+#46=IFCPROPERTYSET('2VZJ9xfdn1NeOY6uEmnnYW',$,'EPset_Parametric',$,(#47));
 #47=IFCPROPERTYSINGLEVALUE('LayerSetDirection',$,IFCLABEL('AXIS2'),$);
-#48=IFCCOVERINGTYPE('0XiSBI57L9Uf8f2NaQ_ksi',$,'COV30',$,$,(#52),$,$,$,.NOTDEFINED.);
+#48=IFCCOVERINGTYPE('1uU6rxt95AC91lZ0jTRG6G',$,'COV30',$,$,(#52),$,$,$,.NOTDEFINED.);
 #49=IFCMATERIALLAYERSET((#51),$,$);
-#50=IFCRELASSOCIATESMATERIAL('3U3JdGAmbABA4mB$Fgpq1l',$,$,$,(#48),#49);
+#50=IFCRELASSOCIATESMATERIAL('2lFv4xQYr5bwtiSsMTVCgz',$,$,$,(#48),#49);
 #51=IFCMATERIALLAYER(#20,0.03,$,$,$,$,$);
-#52=IFCPROPERTYSET('17nhQ5I4b9ZvhDu4gRJLKO',$,'EPset_Parametric',$,(#53));
+#52=IFCPROPERTYSET('0HnrRhcd16Yfbgtci4sqCG',$,'EPset_Parametric',$,(#53));
 #53=IFCPROPERTYSINGLEVALUE('LayerSetDirection',$,IFCLABEL('AXIS3'),$);
-#54=IFCRAMPTYPE('1BTHjVDP19tgb3MDCSkWCJ',$,'RAM200',$,$,$,$,$,$,.NOTDEFINED.);
+#54=IFCRAMPTYPE('3nonXCVn58jhVV08N8c97B',$,'RAM200',$,$,$,$,$,$,.NOTDEFINED.);
 #55=IFCMATERIALLAYERSET((#57),$,$);
-#56=IFCRELASSOCIATESMATERIAL('3HN21bHtL16vvHA2GnnxH1',$,$,$,(#54),#55);
+#56=IFCRELASSOCIATESMATERIAL('2NdIrmbUP6bh4x$p_RY31C',$,$,$,(#54),#55);
 #57=IFCMATERIALLAYER(#20,0.2,$,$,$,$,$);
 #58=IFCCIRCLEPROFILEDEF(.AREA.,$,$,0.3);
-#59=IFCPILETYPE('04_2WZSqH8TgT7ET6DCCpd',$,'P1',$,$,$,$,$,$,.NOTDEFINED.);
+#59=IFCPILETYPE('2uuf5kq5TDDfO9jGN7XIHh',$,'P1',$,$,$,$,$,$,.NOTDEFINED.);
 #60=IFCMATERIALPROFILESET($,$,(#62),$);
-#61=IFCRELASSOCIATESMATERIAL('1qTZZRXsPF9hmYwT$tgFgp',$,$,$,(#59),#60);
+#61=IFCRELASSOCIATESMATERIAL('3hi821Ffj8YR9yFjp226LU',$,$,$,(#59),#60);
 #62=IFCMATERIALPROFILE($,$,#20,#58,$,$);
-#63=IFCSLABTYPE('3_OV9$Sd52KRhIW2TWIxbW',$,'FLR150',$,$,$,$,$,$,.NOTDEFINED.);
+#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,$,$,$,$,$);
-#67=IFCSLABTYPE('0LvmpIGf9AVPcG$Kt06TEk',$,'FLR250',$,$,$,$,$,$,.NOTDEFINED.);
+#67=IFCSLABTYPE('26UKpEaTb9fh4qrqi3Ymzj',$,'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);
-#72=IFCCOLUMNTYPE('1SI8m9m813tAXfSnM1fCbm',$,'C1',$,$,$,$,$,$,.NOTDEFINED.);
+#72=IFCCOLUMNTYPE('1KnWzBBoLCNfJ3_J79LT7d',$,'C1',$,$,$,$,$,$,.NOTDEFINED.);
 #73=IFCMATERIALPROFILESET($,$,(#75),$);
-#74=IFCRELASSOCIATESMATERIAL('1EhwSTRtPBQgBt2x6dhuT$',$,$,$,(#72),#73);
+#74=IFCRELASSOCIATESMATERIAL('1W8OWQjEL05gH5hEpve6Lh',$,$,$,(#72),#73);
 #75=IFCMATERIALPROFILE($,$,#20,#71,$,$);
 #76=IFCCIRCLEHOLLOWPROFILEDEF(.AREA.,'500.0x5.0 CHS',$,0.25,0.005);
-#77=IFCCOLUMNTYPE('25GZwy2zLFcgi57r5S8iY3',$,'C2',$,$,$,$,$,$,.NOTDEFINED.);
+#77=IFCCOLUMNTYPE('33jPFERfL9bfTeWfTL5kZ7',$,'C2',$,$,$,$,$,$,.NOTDEFINED.);
 #78=IFCMATERIALPROFILESET($,$,(#80),$);
-#79=IFCRELASSOCIATESMATERIAL('2VURAOhz93ZQqT9YJUA1DO',$,$,$,(#77),#78);
+#79=IFCRELASSOCIATESMATERIAL('3czOrQw2v9BfS0PeQCrzWq',$,$,$,(#77),#78);
 #80=IFCMATERIALPROFILE($,$,#20,#76,$,$);
 #81=IFCRECTANGLEHOLLOWPROFILEDEF(.AREA.,'150x75x2.0 RHS',$,0.075,0.15,0.002,0.005,0.005);
-#82=IFCCOLUMNTYPE('1Wg$I84s9BTh$iDuZnmSkH',$,'C3',$,$,$,$,$,$,.NOTDEFINED.);
+#82=IFCCOLUMNTYPE('21YcNdKNj2$95U55yNx1Nw',$,'C3',$,$,$,$,$,$,.NOTDEFINED.);
 #83=IFCMATERIALPROFILESET($,$,(#85),$);
-#84=IFCRELASSOCIATESMATERIAL('3fIIwEe7DAle7x_zISvMUD',$,$,$,(#82),#83);
+#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;
 #950=IFCDIRECTION((0.,0.,1.));
 #951=IFCAXIS2PLACEMENT3D(#948,#950,#949);
 #952=IFCREPRESENTATIONMAP(#951,#947);
-#953=IFCTYPEPRODUCT('2be705eyD4DPBr6j4K7ZEx',$,'DASHED',$,'IfcAnnotation/LINEWORK',(#954),$,$);
-#954=IFCPROPERTYSET('0uEfutIxDDIxMIBUJOZpSM',$,'EPset_Annotation',$,(#955));
-#955=IFCPROPERTYSINGLEVALUE('Classes',$,IFCLABEL('dashed'),$);
-#956=IFCTYPEPRODUCT('1M7mm9wUHFoxdM0MdAMyqM',$,'FINE',$,'IfcAnnotation/LINEWORK',(#957),$,$);
-#957=IFCPROPERTYSET('3AZ8m1Bdn1gfbvagzKr2c3',$,'EPset_Annotation',$,(#958));
-#958=IFCPROPERTYSINGLEVALUE('Classes',$,IFCLABEL('fine'),$);
-#959=IFCTYPEPRODUCT('3LdrNIFOvAkBzrNnqWAZfA',$,'THIN',$,'IfcAnnotation/LINEWORK',(#960),$,$);
-#960=IFCPROPERTYSET('0$9iwgSID7xBul4Tb9r2du',$,'EPset_Annotation',$,(#961));
-#961=IFCPROPERTYSINGLEVALUE('Classes',$,IFCLABEL('thin'),$);
-#962=IFCTYPEPRODUCT('3fFNO0t1TB$wYRaIkKwUCH',$,'MEDIUM',$,'IfcAnnotation/LINEWORK',(#963),$,$);
-#963=IFCPROPERTYSET('33Fm$9zgb1cgsCOy859RlR',$,'EPset_Annotation',$,(#964));
-#964=IFCPROPERTYSINGLEVALUE('Classes',$,IFCLABEL('medium'),$);
-#965=IFCTYPEPRODUCT('1CpMBhemj5VQC43bU9J7zG',$,'THICK',$,'IfcAnnotation/LINEWORK',(#966),$,$);
-#966=IFCPROPERTYSET('1OLDsFSDz2TPz5ifkQvWo8',$,'EPset_Annotation',$,(#967));
-#967=IFCPROPERTYSINGLEVALUE('Classes',$,IFCLABEL('thick'),$);
-#968=IFCTYPEPRODUCT('0NITtya3b16hoA3sh17SL4',$,'STRONG',$,'IfcAnnotation/LINEWORK',(#969),$,$);
-#969=IFCPROPERTYSET('1_kfqWVDn0puI29Ah6eitX',$,'EPset_Annotation',$,(#970));
-#970=IFCPROPERTYSINGLEVALUE('Classes',$,IFCLABEL('strong'),$);
-#971=IFCTYPEPRODUCT('0rRN9EsvL5AQ3PorxrZSKM',$,'DOOR-TAG',$,'IfcAnnotation/TEXT',(#972),(#991),$);
-#972=IFCPROPERTYSET('3lRZ$d2VH8cxZYh$mm45iq',$,'EPset_Annotation',$,(#973));
-#973=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('door-tag'),$);
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-#975=IFCDIRECTION((0.,0.,1.));
-#976=IFCDIRECTION((1.,0.,0.));
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-#979=IFCTEXTLITERALWITHEXTENT('{{type.Name}}',#977,.RIGHT.,#978,'center');
-#980=IFCCARTESIANPOINT((0.,0.,0.));
-#981=IFCDIRECTION((0.,0.,1.));
-#982=IFCDIRECTION((1.,0.,0.));
-#983=IFCAXIS2PLACEMENT3D(#980,#981,#982);
-#984=IFCPLANAREXTENT(1000.,1000.);
-#985=IFCTEXTLITERALWITHEXTENT('{{Name}}',#983,.RIGHT.,#984,'center');
-#986=IFCSHAPEREPRESENTATION(#19,'Annotation','Annotation2D',(#979,#985));
-#987=IFCCARTESIANPOINT((0.,0.,0.));
-#988=IFCDIRECTION((1.,0.,0.));
-#989=IFCDIRECTION((0.,0.,1.));
-#990=IFCAXIS2PLACEMENT3D(#987,#989,#988);
-#991=IFCREPRESENTATIONMAP(#990,#986);
-#992=IFCTYPEPRODUCT('0bFZUWHjbA2e03hRHNinTt',$,'WINDOW-TAG',$,'IfcAnnotation/TEXT',(#993),(#1006),$);
-#993=IFCPROPERTYSET('3TJOWv5NDBXBNCshYFjsFV',$,'EPset_Annotation',$,(#994));
-#994=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('window-tag'),$);
-#995=IFCCARTESIANPOINT((0.,0.,0.));
-#996=IFCDIRECTION((0.,0.,1.));
+#953=IFCTYPEPRODUCT('0TBMBnD_b66QLUWKD9HLsc',$,'SETOUT-POINT',$,'IfcAnnotation/SYMBOL',(#954),$,$);
+#954=IFCPROPERTYSET('2dQzX_K4r1Xet6dz9zBlgs',$,'EPset_Annotation',$,(#955));
+#955=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('setout-point'),$);
+#956=IFCTYPEPRODUCT('0vo_7PU3H9ygTnrIipqPRI',$,'CONTROL-POINT',$,'IfcAnnotation/SYMBOL',(#957),$,$);
+#957=IFCPROPERTYSET('3APQOw$FP1ivxp08UxHsl6',$,'EPset_Annotation',$,(#958));
+#958=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('control-point'),$);
+#959=IFCTYPEPRODUCT('32V27G3$T1OO3TbXg6948F',$,'TRAVERSE-POINT',$,'IfcAnnotation/SYMBOL',(#960),$,$);
+#960=IFCPROPERTYSET('0cTSYXMc9B$PTXVDrhBYYW',$,'EPset_Annotation',$,(#961));
+#961=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('traverse-point'),$);
+#962=IFCTYPEPRODUCT('2PXIC7Bg914gJhRh2XeGnN',$,'DASHED',$,'IfcAnnotation/LINEWORK',(#963),$,$);
+#963=IFCPROPERTYSET('0RiYsOxp529gXnCkw44wF8',$,'EPset_Annotation',$,(#964));
+#964=IFCPROPERTYSINGLEVALUE('Classes',$,IFCLABEL('dashed'),$);
+#965=IFCTYPEPRODUCT('1Ou1kA3Vb4HhuNBvM0uGe0',$,'FINE',$,'IfcAnnotation/LINEWORK',(#966),$,$);
+#966=IFCPROPERTYSET('2gzly9D0L1qPK2MExeXgRO',$,'EPset_Annotation',$,(#967));
+#967=IFCPROPERTYSINGLEVALUE('Classes',$,IFCLABEL('fine'),$);
+#968=IFCTYPEPRODUCT('3lx$KQPRbEZwbQ7Xdfm5gw',$,'THIN',$,'IfcAnnotation/LINEWORK',(#969),$,$);
+#969=IFCPROPERTYSET('0vsVpqs6zArvA2bfBtvQew',$,'EPset_Annotation',$,(#970));
+#970=IFCPROPERTYSINGLEVALUE('Classes',$,IFCLABEL('thin'),$);
+#971=IFCTYPEPRODUCT('00j$y97p903w2HOb35lAQ2',$,'MEDIUM',$,'IfcAnnotation/LINEWORK',(#972),$,$);
+#972=IFCPROPERTYSET('240rEBDOn8PAvfnm_43s55',$,'EPset_Annotation',$,(#973));
+#973=IFCPROPERTYSINGLEVALUE('Classes',$,IFCLABEL('medium'),$);
+#974=IFCTYPEPRODUCT('2tVdFGorj6dfrL4uA1kyW8',$,'THICK',$,'IfcAnnotation/LINEWORK',(#975),$,$);
+#975=IFCPROPERTYSET('2IEGHncr1D$R8fKA9zCEJP',$,'EPset_Annotation',$,(#976));
+#976=IFCPROPERTYSINGLEVALUE('Classes',$,IFCLABEL('thick'),$);
+#977=IFCTYPEPRODUCT('1T5C$$ONTBB8A9a7vv0Gn6',$,'STRONG',$,'IfcAnnotation/LINEWORK',(#978),$,$);
+#978=IFCPROPERTYSET('1gRomAS1L2WguA51ZI0E40',$,'EPset_Annotation',$,(#979));
+#979=IFCPROPERTYSINGLEVALUE('Classes',$,IFCLABEL('strong'),$);
+#980=IFCTYPEPRODUCT('2LmKYrAEr2K8EwJyCAsyc4',$,'SETOUT-TAG',$,'IfcAnnotation/TEXT',(#981),(#1000),$);
+#981=IFCPROPERTYSET('0nF9du8qDAF9aldqjCUsbX',$,'EPset_Annotation',$,(#982));
+#982=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('setout-tag'),$);
+#983=IFCCARTESIANPOINT((0.,0.,0.));
+#984=IFCDIRECTION((0.,0.,1.));
+#985=IFCDIRECTION((1.,0.,0.));
+#986=IFCAXIS2PLACEMENT3D(#983,#984,#985);
+#987=IFCPLANAREXTENT(1000.,1000.);
+#988=IFCTEXTLITERALWITHEXTENT('E ``round({{easting}}, 0.001)``',#986,.RIGHT.,#987,'center');
+#989=IFCCARTESIANPOINT((0.,0.,0.));
+#990=IFCDIRECTION((0.,0.,1.));
+#991=IFCDIRECTION((1.,0.,0.));
+#992=IFCAXIS2PLACEMENT3D(#989,#990,#991);
+#993=IFCPLANAREXTENT(1000.,1000.);
+#994=IFCTEXTLITERALWITHEXTENT('N ``round({{northing}}, 0.001)``',#992,.RIGHT.,#993,'center');
+#995=IFCSHAPEREPRESENTATION(#19,'Annotation','Annotation2D',(#988,#994));
+#996=IFCCARTESIANPOINT((0.,0.,0.));
 #997=IFCDIRECTION((1.,0.,0.));
-#998=IFCAXIS2PLACEMENT3D(#995,#996,#997);
-#999=IFCPLANAREXTENT(1000.,1000.);
-#1000=IFCTEXTLITERALWITHEXTENT('{{Name}}',#998,.RIGHT.,#999,'center');
-#1001=IFCSHAPEREPRESENTATION(#19,'Annotation','Annotation2D',(#1000));
-#1002=IFCCARTESIANPOINT((0.,0.,0.));
-#1003=IFCDIRECTION((1.,0.,0.));
-#1004=IFCDIRECTION((0.,0.,1.));
-#1005=IFCAXIS2PLACEMENT3D(#1002,#1004,#1003);
-#1006=IFCREPRESENTATIONMAP(#1005,#1001);
-#1007=IFCTYPEPRODUCT('2DlmDdasX05un_uMP4O23U',$,'SPACE-TAG',$,'IfcAnnotation/TEXT',(#1008),(#1033),$);
-#1008=IFCPROPERTYSET('1$OAHURHr3GON7ZzAJnv72',$,'EPset_Annotation',$,(#1009));
-#1009=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('space-tag'),$);
+#998=IFCDIRECTION((0.,0.,1.));
+#999=IFCAXIS2PLACEMENT3D(#996,#998,#997);
+#1000=IFCREPRESENTATIONMAP(#999,#995);
+#1001=IFCTYPEPRODUCT('1cdhVmqEPF6e13_TFOdlQw',$,'DOOR-TAG',$,'IfcAnnotation/TEXT',(#1002),(#1021),$);
+#1002=IFCPROPERTYSET('1MUPGQolnDEgp0NxcMN56E',$,'EPset_Annotation',$,(#1003));
+#1003=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('door-tag'),$);
+#1004=IFCCARTESIANPOINT((0.,0.,0.));
+#1005=IFCDIRECTION((0.,0.,1.));
+#1006=IFCDIRECTION((1.,0.,0.));
+#1007=IFCAXIS2PLACEMENT3D(#1004,#1005,#1006);
+#1008=IFCPLANAREXTENT(1000.,1000.);
+#1009=IFCTEXTLITERALWITHEXTENT('{{type.Name}}',#1007,.RIGHT.,#1008,'center');
 #1010=IFCCARTESIANPOINT((0.,0.,0.));
 #1011=IFCDIRECTION((0.,0.,1.));
 #1012=IFCDIRECTION((1.,0.,0.));
 #1013=IFCAXIS2PLACEMENT3D(#1010,#1011,#1012);
 #1014=IFCPLANAREXTENT(1000.,1000.);
 #1015=IFCTEXTLITERALWITHEXTENT('{{Name}}',#1013,.RIGHT.,#1014,'center');
-#1016=IFCCARTESIANPOINT((0.,0.,0.));
-#1017=IFCDIRECTION((0.,0.,1.));
+#1016=IFCSHAPEREPRESENTATION(#19,'Annotation','Annotation2D',(#1009,#1015));
+#1017=IFCCARTESIANPOINT((0.,0.,0.));
 #1018=IFCDIRECTION((1.,0.,0.));
-#1019=IFCAXIS2PLACEMENT3D(#1016,#1017,#1018);
-#1020=IFCPLANAREXTENT(1000.,1000.);
-#1021=IFCTEXTLITERALWITHEXTENT('{{Description}}',#1019,.RIGHT.,#1020,'center');
-#1022=IFCCARTESIANPOINT((0.,0.,0.));
-#1023=IFCDIRECTION((0.,0.,1.));
-#1024=IFCDIRECTION((1.,0.,0.));
-#1025=IFCAXIS2PLACEMENT3D(#1022,#1023,#1024);
-#1026=IFCPLANAREXTENT(1000.,1000.);
-#1027=IFCTEXTLITERALWITHEXTENT('``round({{Qto_SpaceBaseQuantities.NetFloorArea}} or 0., 2)``',#1025,.RIGHT.,#1026,'center');
-#1028=IFCSHAPEREPRESENTATION(#19,'Annotation','Annotation2D',(#1015,#1021,#1027));
-#1029=IFCCARTESIANPOINT((0.,0.,0.));
-#1030=IFCDIRECTION((1.,0.,0.));
-#1031=IFCDIRECTION((0.,0.,1.));
-#1032=IFCAXIS2PLACEMENT3D(#1029,#1031,#1030);
-#1033=IFCREPRESENTATIONMAP(#1032,#1028);
-#1034=IFCTYPEPRODUCT('2vNx3CIlrFs8bLFlmGvJF3',$,'MATERIAL-TAG',$,'IfcAnnotation/TEXT',(#1035),(#1048),$);
-#1035=IFCPROPERTYSET('1l$T4lUqnBb93zcgfbSPvx',$,'EPset_Annotation',$,(#1036));
-#1036=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('rectangle-tag'),$);
-#1037=IFCCARTESIANPOINT((0.,0.,0.));
-#1038=IFCDIRECTION((0.,0.,1.));
-#1039=IFCDIRECTION((1.,0.,0.));
-#1040=IFCAXIS2PLACEMENT3D(#1037,#1038,#1039);
-#1041=IFCPLANAREXTENT(1000.,1000.);
-#1042=IFCTEXTLITERALWITHEXTENT('{{material.Name}}',#1040,.RIGHT.,#1041,'center');
-#1043=IFCSHAPEREPRESENTATION(#19,'Annotation','Annotation2D',(#1042));
-#1044=IFCCARTESIANPOINT((0.,0.,0.));
-#1045=IFCDIRECTION((1.,0.,0.));
-#1046=IFCDIRECTION((0.,0.,1.));
-#1047=IFCAXIS2PLACEMENT3D(#1044,#1046,#1045);
-#1048=IFCREPRESENTATIONMAP(#1047,#1043);
-#1049=IFCTYPEPRODUCT('3hqzFtbSb56RjhAZNaB4Vh',$,'TYPE-TAG',$,'IfcAnnotation/TEXT',(#1050),(#1063),$);
-#1050=IFCPROPERTYSET('3U7kaKt_nBUvD$U2ryif_H',$,'EPset_Annotation',$,(#1051));
-#1051=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('capsule-tag'),$);
+#1019=IFCDIRECTION((0.,0.,1.));
+#1020=IFCAXIS2PLACEMENT3D(#1017,#1019,#1018);
+#1021=IFCREPRESENTATIONMAP(#1020,#1016);
+#1022=IFCTYPEPRODUCT('0OuDi3gRH2CxW9mrtE0vXw',$,'WINDOW-TAG',$,'IfcAnnotation/TEXT',(#1023),(#1036),$);
+#1023=IFCPROPERTYSET('2X7dAo_1P5ruRnlKA4kIl6',$,'EPset_Annotation',$,(#1024));
+#1024=IFCPROPERTYSINGLEVALUE('Symbol',$,IFCLABEL('window-tag'),$);
+#1025=IFCCARTESIANPOINT((0.,0.,0.));
+#1026=IFCDIRECTION((0.,0.,1.));
+#1027=IFCDIRECTION((1.,0.,0.));
+#1028=IFCAXIS2PLACEMENT3D(#1025,#1026,#1027);
+#1029=IFCPLANAREXTENT(1000.,1000.);
+#1030=IFCTEXTLITERALWITHEXTENT('{{Name}}',#1028,.RIGHT.,#1029,'center');
+#1031=IFCSHAPEREPRESENTATION(#19,'Annotation','Annotation2D',(#1030));
+#1032=IFCCARTESIANPOINT((0.,0.,0.));
+#1033=IFCDIRECTION((1.,0.,0.));
+#1034=IFCDIRECTION((0.,0.,1.));
+#1035=IFCAXIS2PLACEMENT3D(#1032,#1034,#1033);
+#1036=IFCREPRESENTATIONMAP(#1035,#1031);
+#1037=IFCTYPEPRODUCT('3WEV_9wQn6AQTESgjW36PH',$,'SPACE-TAG',$,'IfcAnnotation/TEXT',(#1038),(#1063),$);
+#1038=IFCPROPERTYSET('02FAX8dIzAlunWD5ak$6sU',$,'EPset_Annotation',$,(#1039));
+#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;
@@ -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, "name", 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()
@@ -227,16 +227,16 @@ class IfcImporter:
        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_body_2d = ifcopenshell.geom.settings()
+        self.settings_body_2d.set_deflection_tolerance(self.ifc_import_settings.deflection_tolerance)
+        self.settings_body_2d.set_angular_tolerance(self.ifc_import_settings.angular_tolerance)
+        self.settings_body_2d.set(self.settings_body_2d.STRICT_TOLERANCE, True)
+        self.settings_body_2d.set(self.settings_body_2d.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.settings_plan_2d = ifcopenshell.geom.settings()
+        self.settings_plan_2d.set(self.settings_plan_2d.INCLUDE_CURVES, True)
+        self.settings_plan_2d.set(self.settings_plan_2d.STRICT_TOLERANCE, True)
        self.project = None
        self.has_existing_project = False
        self.collections = {}
@@ -318,6 +318,7 @@ class IfcImporter:
            self.profile_code("Merging by colour")
        self.set_default_context()
        self.profile_code("Setting default context")
+        self.setup_viewport_camera()
        self.update_progress(100)
        bpy.context.window_manager.progress_end()

@@ -348,13 +349,14 @@ class IfcImporter:
            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 not self.body_contexts:
+            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
@@ -365,7 +367,7 @@ class IfcImporter:
            if c.ContextType in ["Plan", "Annotation"] or c.ContextIdentifier == "Annotation"
        ]
        if self.plan_contexts:
-            self.settings_2d.set_context_ids(self.plan_contexts)
+            self.settings_plan_2d.set_context_ids(self.plan_contexts)

    def process_element_filter(self):
        offset = self.ifc_import_settings.element_offset
@@ -573,7 +575,13 @@ class IfcImporter:
                return
            if not self.does_element_likely_have_geometry_far_away(element):
                continue
-            shape = ifcopenshell.geom.create_shape(self.settings, element)
+            try:
+                shape = ifcopenshell.geom.create_shape(self.settings, element)
+            except:
+                try:
+                    shape = ifcopenshell.geom.create_shape(self.settings_body_2d, element)
+                except:
+                    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 +653,7 @@ 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 = ifcopenshell.geom.create_shape(self.settings_plan_2d, 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 +672,7 @@ 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 = ifcopenshell.geom.create_shape(self.settings_plan_2d, 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:
@@ -698,7 +706,7 @@ class IfcImporter:
                        shape = ifcopenshell.geom.create_shape(self.settings, representation)
                    except:
                        try:
-                            shape = ifcopenshell.geom.create_shape(self.settings_2d, representation)
+                            shape = ifcopenshell.geom.create_shape(self.settings_plan_2d, representation)
                        except:
                            self.ifc_import_settings.logger.error("Failed to generate shape for %s", element)
                    if shape:
@@ -764,9 +772,9 @@ class IfcImporter:
        if self.ifc_import_settings.should_load_geometry:
            products = self.create_products(elements)
            elements -= products
-            products = self.create_products(elements, settings=self.settings_curve)
+            products = self.create_products(elements, settings=self.settings_body_2d)
            elements -= products
-            products = self.create_products(elements, settings=self.settings_2d)
+            products = self.create_products(elements, settings=self.settings_plan_2d)
            elements -= products
            products = self.create_pointclouds(elements)
            elements -= products
@@ -901,10 +909,10 @@ 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_products(self.file.by_type("IfcStructuralCurveMember"), settings=self.settings_plan_2d)
+        self.create_products(self.file.by_type("IfcStructuralCurveConnection"), settings=self.settings_plan_2d)
+        self.create_products(self.file.by_type("IfcStructuralSurfaceMember"), settings=self.settings_plan_2d)
+        self.create_products(self.file.by_type("IfcStructuralSurfaceConnection"), settings=self.settings_plan_2d)
        self.create_structural_point_connections()

    def create_structural_point_connections(self):
@@ -973,10 +981,14 @@ 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)

@@ -1902,6 +1914,13 @@ class IfcImporter:
        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")
+

 class IfcImportSettings:
    def __init__(self):
@@ -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"]
@@ -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
@@ -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"):
@@ -130,6 +131,11 @@ class CostSchedulesData:
                data["UnitBasisValueComponent"] = cost_value_data["UnitBasis"]["ValueComponent"]
                data["UnitBasisUnitSymbol"] = cost_value_data["UnitBasis"]["UnitSymbol"]
                has_unit_basis = True
+            else:
+                data["UnitBasisValueComponent"] = 1
+                data["UnitBasisUnitSymbol"] = "U"
+            if cost_value.Category == "*":
+                is_sum = True
        if has_unit_basis:
            data["TotalCost"] = data["TotalAppliedValue"] / data["UnitBasisValueComponent"]
        else:
@@ -137,7 +143,8 @@ class CostSchedulesData:
                data["TotalCost"] = data["TotalAppliedValue"] * data["TotalCostQuantity"]
            else:
                data["TotalCost"] = data["TotalAppliedValue"]
-                data["TotalAppliedValue"] = None
+        if is_sum:
+            data["TotalAppliedValue"] = None

    @classmethod
    def _load_cost_item_quantities(cls, cost_item, data):
@@ -154,7 +161,7 @@ class CostSchedulesData:
            if unit:
                data["UnitSymbol"] = ifcopenshell.util.unit.get_unit_symbol(unit)
            else:
-                data["UnitSymbol"] = None
+                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):
@@ -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 +16,17 @@
 # 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 webbrowser
+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 +62,46 @@ 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 +111,7 @@ 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 +119,25 @@ 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 +151,8 @@ 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 +170,56 @@ 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 +238,20 @@ 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")
@@ -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"}


@@ -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,
@@ -64,11 +64,6 @@ class profile_consequential:
        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 +243,13 @@ 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 +520,10 @@ 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 +745,7 @@ 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 +777,7 @@ 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 +795,24 @@ 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):
@@ -70,15 +70,6 @@ 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 +260,7 @@ 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 +476,7 @@ 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 +546,7 @@ 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 +557,21 @@ 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 +580,55 @@ 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 +643,7 @@ 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 +836,7 @@ 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 +847,7 @@ 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 +860,10 @@ 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 +898,21 @@ 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 +921,27 @@ 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 +1059,12 @@ 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 +1075,9 @@ 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 +1278,15 @@ 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 +1319,23 @@ 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 +1402,9 @@ 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 +1440,7 @@ 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 +1562,17 @@ 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 +1918,7 @@ 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):
@@ -502,6 +502,8 @@ 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 +540,7 @@ 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,
@@ -174,6 +174,8 @@ 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()

@@ -414,7 +416,7 @@ 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):
@@ -314,7 +314,7 @@ 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

@@ -26,17 +26,19 @@ classes = (
    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.OverrideModeSetEdit,
    operator.OverrideModeSetObject,
+    operator.OverrideOriginSet,
    operator.OverrideOutlinerDelete,
    operator.OverridePasteBuffer,
+    operator.PurgeUnusedRepresentations,
+    operator.RefreshAggregate,
    operator.RemoveConnection,
    operator.RemoveRepresentation,
    operator.SelectConnection,
@@ -50,6 +52,7 @@ classes = (
    ui.BIM_PT_connections,
    ui.BIM_PT_mesh,
    ui.BIM_PT_workarounds,
+    ui.BIM_MT_object_set_origin,
 )


@@ -97,7 +97,7 @@ class ConnectionsData:

    @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 +114,13 @@ 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 +131,8 @@ 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 +142,13 @@ 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 = ""
@@ -145,11 +159,30 @@ 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
+
+        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 DerivedPlacementsData:
    data = {}
@@ -57,6 +57,31 @@ class EditObjectPlacement(bpy.types.Operator, Operator):
            core.edit_object_placement(tool.Ifc, tool.Geometry, tool.Surveyor, obj=obj)


+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"
@@ -185,6 +210,15 @@ 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):
+        core.purge_unused_representations(tool.Ifc, tool.Geometry)
+
+
 class UpdateRepresentation(bpy.types.Operator, Operator):
    bl_idname = "bim.update_representation"
    bl_label = "Update Representation"
@@ -214,6 +248,10 @@ 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 +269,15 @@ 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 +330,7 @@ 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 +398,8 @@ 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):
@@ -637,9 +684,17 @@ class OverrideDuplicateMove(bpy.types.Operator):
            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.
+
+            # 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()
+            temp_data = None
            if obj.data:
-                new_obj.data = obj.data.copy()
+                # 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:
@@ -648,8 +703,13 @@ class OverrideDuplicateMove(bpy.types.Operator):
            new_obj.select_set(True)
            # 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:
@@ -660,7 +720,7 @@ class OverrideDuplicateMove(bpy.types.Operator):
                    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()


 class OverrideDuplicateMoveLinkedMacro(bpy.types.Macro):
@@ -705,6 +765,10 @@ class OverrideDuplicateMoveLinked(bpy.types.Operator):
        relationships = tool.Root.get_decomposition_relationships(context.selected_objects)
        old_to_new = {}
        for obj in context.selected_objects:
+            # 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()
@@ -724,7 +788,7 @@ class OverrideDuplicateMoveLinked(bpy.types.Operator):
                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()
+        blenderbim.bim.handler.refresh_ui_data()
        return {"FINISHED"}


@@ -1012,7 +1076,7 @@ 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"}

@@ -1159,7 +1223,7 @@ 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()

        return {"FINISHED"}

@@ -1317,8 +1381,13 @@ 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 +1416,7 @@ 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 +1435,9 @@ 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 +1479,11 @@ 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):
@@ -1490,6 +1563,8 @@ 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)
@@ -18,7 +18,7 @@

 import bpy
 import blenderbim.tool as tool
-from bpy.types import Panel
+from bpy.types import Panel, Menu
 from blenderbim.bim.ifc import IfcStore
 from blenderbim.bim.helper import prop_with_search
 from blenderbim.bim.module.geometry.data import RepresentationsData, ConnectionsData, DerivedPlacementsData
@@ -29,6 +29,29 @@ 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")
+
+
+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):
@@ -111,7 +134,7 @@ 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 +146,44 @@ 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"
@@ -34,6 +34,7 @@ classes = (
    operator.GetCursorLocation,
    operator.SetCursorLocation,
    operator.ConvertAngleToCoordinates,
+    operator.ImportPlot,
    prop.BIMGeoreferenceProperties,
    ui.BIM_PT_gis,
    ui.BIM_PT_gis_utilities,
@@ -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"}
@@ -58,6 +58,8 @@ class BIM_PT_materials(Panel):
        row.alignment = "RIGHT"

        if self.props.material_type == "IfcMaterial":
+            if not self.props.active_material_id:
+                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:
@@ -66,13 +68,10 @@ class BIM_PT_materials(Panel):
                        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")
        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):
@@ -50,8 +50,9 @@ class BIM_PT_misc_utilities(bpy.types.Panel):
        row.operator("bim.clean_wireframes")
        row = layout.row()
        row.operator("bim.patch_non_parametric_mep_segment")
-
        row = layout.row(align=True)
        row.operator("bim.enable_editing_sketch_extrusion_profile", text="Start Sketching")
        row.operator("bim.edit_sketch_extrusion_profile", text="", icon="FILE_REFRESH")
        row.operator("bim.disable_editing_sketch_extrusion_profile", text="", icon="CANCEL")
+        row = layout.row()
+        row.operator("bim.import_plot", text="Import Plot Coordinates", icon="FILE_FOLDER")
@@ -78,6 +78,7 @@ classes = (
    opening.AddPotentialHalfSpaceSolid,
    opening.AddPotentialOpening,
    opening.EditOpenings,
+    opening.CloneOpening,
    opening.FlipFill,
    opening.HideBooleans,
    opening.HideOpenings,
@@ -178,6 +179,7 @@ classes = (
    roof.SetGableRoofEdgeAngle,
    mep.MEPAddObstruction,
    mep.MEPAddTransition,
+    mep.MEPAddBend,
 )

 addon_keymaps = []
@@ -130,11 +130,11 @@ def update_door_modifier_representation(context, obj):
    if tool.Ifc.get_schema() != "IFC2X3":
        element.OperationType = props.door_type

-    # occurences attributes
-    occurences = tool.Ifc.get_all_element_occurences(element)
-    for occurence in occurences:
-        occurence.OverallWidth = props.overall_width / si_conversion
-        occurence.OverallHeight = props.overall_height / si_conversion
+    # occurrences attributes
+    occurrences = tool.Ifc.get_all_element_occurrences(element)
+    for occurrence in occurrences:
+        occurrence.OverallWidth = props.overall_width / si_conversion
+        occurrence.OverallHeight = props.overall_height / si_conversion

    update_simple_openings(element, props.overall_width / si_conversion, props.overall_height / si_conversion)

@@ -29,16 +29,18 @@ import ifcopenshell.util.system
 import ifcopenshell.util.element
 import ifcopenshell.util.representation
 import mathutils.geometry
+import numpy as np
 import blenderbim.bim.handler
 import blenderbim.core.type
 import blenderbim.core.root
 import blenderbim.core.geometry
 import blenderbim.tool as tool
-from math import pi, degrees, radians
+from math import pi, degrees, radians, sin, cos, asin, tan
 from copy import copy
 from mathutils import Vector, Matrix
 from ifcopenshell.util.shape_builder import ShapeBuilder
 from blenderbim.bim.module.model.profile import DumbProfileJoiner
+from blenderbim.tool.cad import VTX_PRECISION

 V = lambda *x: Vector([float(i) for i in x])

@@ -46,7 +48,8 @@ V = lambda *x: Vector([float(i) for i in x])
 class RegenerateDistributionElement(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.regenerate_distribution_element"
    bl_description = (
-        "Regenerates the positions and segment lengths of a distribution element and all connected elements."
+        "Regenerates the positions and segment lengths of a distribution element and all connected elements.\n"
+        "Will try to adjust as less elements as possible, never rotate them. Segments will also try to change their length to fit"
    )
    bl_label = "Regenerate Distribution Element"
    bl_options = {"REGISTER", "UNDO"}
@@ -73,29 +76,68 @@ class RegenerateDistributionElement(bpy.types.Operator, tool.Ifc.Operator):
                [e for e in ifcopenshell.util.system.get_connected_from(element) if e not in processed_elements]
            )

-            if len(connected) == 1:
-                extend_branch(list(connected)[0], branch, element)
-            else:
-                for connected_element in connected:
-                    branch_element["children"].append(extend_branch(connected_element, [], element))
+            for connected_element in connected:
+                branch_element["children"].append(extend_branch(connected_element, [], element))

            return branch

-        queue = extend_branch(current_element, [])[0]["children"]
+        extended_branch = extend_branch(current_element, [])
+        queue = extended_branch[0]["children"]

        # import pprint
        # pprint.pprint(queue)

+        def get_connected_ports_between(element1, element2):
+            ports1 = tool.System.get_ports(element1)
+            ports2 = tool.System.get_ports(element2)
+
+            for p in ports1:
+                connected_port = tool.System.get_connected_port(p)
+                # in IFC2X3 there is no PredefinedType
+                if getattr(p, "PredefinedType", None) == "WIRELESS":
+                    continue
+                if connected_port in ports2:
+                    return p, connected_port
+
+            return None, None
+
+        si_conversion = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
+
        def process_branch(branch):
            for branch_element in branch:
                element = branch_element["element"]
                print("processing", element)
                predecessor = branch_element["predecessor"]
-                if False:  # If the element does not need to be transformed, return early.
-                    return
+
                # Perform the extend, translate, rotate, etc the element as necessary based on the predecessor.
-                # For segments, prioritise extensions instead of translations.
-                # For everything else, only translate. No rotation.
+                # For everything besides segments, only translate. No rotation.
+
+                obj = tool.Ifc.get_object(element)
+                obj_pred = tool.Ifc.get_object(predecessor)
+                if tool.Ifc.is_moved(obj):
+                    blenderbim.core.geometry.edit_object_placement(tool.Ifc, tool.Geometry, tool.Surveyor, obj=obj)
+                if tool.Ifc.is_moved(obj_pred):
+                    blenderbim.core.geometry.edit_object_placement(tool.Ifc, tool.Geometry, tool.Surveyor, obj=obj_pred)
+
+                port, port_pred = get_connected_ports_between(element, predecessor)
+                port_matrix_pred = tool.Model.get_element_matrix(port_pred)
+
+                # Only segments can be extended
+                # extension for them takes priority over translation
+                if element.is_a("IfcFlowSegment"):
+                    DumbProfileJoiner().join_E(obj, port_matrix_pred.translation * si_conversion)
+                    context.view_layer.update()  # update since extrusion might involve changing object's location
+
+                port_martix = tool.Model.get_element_matrix(port)
+                port_location = port_martix.translation
+                port_location_pred = port_matrix_pred.translation
+                if not tool.Cad.are_vectors_equal(port_location, port_location_pred):
+                    obj.location += (port_location_pred - port_location) * si_conversion
+                    context.view_layer.update()  # otherwise tool.Ifc.is_moved won't get triggered
+                else:
+                    # If the element does not need to be transformed, return early.
+                    return
+
                for child_branch in branch_element["children"]:
                    process_branch(child_branch)

@@ -161,6 +203,7 @@ class FitFlowSegments(bpy.types.Operator, tool.Ifc.Operator):
                is_on_axis2 = tool.Cad.is_point_on_edge(intersect2, axis2)
                if not is_on_axis1 and not is_on_axis2:
                    fitting_type = "BEND"
+                    bpy.ops.bim.mep_add_bend()
                elif is_on_axis1 and is_on_axis2:
                    fitting_type = "CROSS"
                else:
@@ -168,6 +211,7 @@ class FitFlowSegments(bpy.types.Operator, tool.Ifc.Operator):
            elif total_profiles == 2:
                if is_parallel:
                    fitting_type = "TRANSITION"
+                    bpy.ops.bim.mep_add_transition()

        elif total_selected_objs == 3:
            if total_profiles > 1:
@@ -229,6 +273,10 @@ class MEPGenerator:
            if port_position == "end_port":
                tool.Model.edit_element_placement(port, end_port_matrix)

+            continue
+
+            # NOTE: currently this functionality is moved to bim.regenerate_distribution_element
+
            connected_port = tool.System.get_connected_port(port)
            if not connected_port:
                continue
@@ -289,7 +337,7 @@ class MEPGenerator:
        class_name = "".join(split_camel_case(element.is_a())[:-1] + [mep_class_type])
        return class_name

-    def get_compatible_fitting_type(self, segment_or_segments, port_or_ports, predefined_type):
+    def get_compatible_fitting_type(self, segment_or_segments, port_or_ports, predefined_type, bbim_data=None):
        """
        returns a dict of compatible fitting_type and start_port_match flag to correctly place the fitting.

@@ -302,7 +350,12 @@ class MEPGenerator:

        There lies the problem that it won't be
        able to identify the fittings that were not yet connected to any segments yet.
+
+
+        `bbim_data` is used to find compatible fitting build with BBIM parametrically (BBIM_Fitting pset).
+        All data in `bbim_data` supposed to be in project units.
        """
+
        if not isinstance(segment_or_segments, collections.abc.Iterable):
            segments = [segment_or_segments]
            ports = [port_or_ports]
@@ -310,14 +363,40 @@ class MEPGenerator:
            segments = segment_or_segments
            ports = port_or_ports

+        ifc_file = tool.Ifc.get()
+        si_conversion = ifcopenshell.util.unit.calculate_unit_scale(ifc_file)
+        precision = VTX_PRECISION / si_conversion
+
        segments_data = []
        for segment, port in zip(segments, ports, strict=True):
            segment_type = ifcopenshell.util.element.get_type(segment)
-            # if segment doesn't have type we cannot check compatibility by available occurences
+            # if segment doesn't have type we cannot check compatibility by available occurrences
            if segment_type is None:
                return
            segments_data.append((segment_type, port.PredefinedType, port.SystemType))

+        # TODO: test it with flipped transition where start length != end length
+        def compatible_with_bbim_data(fitting_type):
+            if not bbim_data:
+                return True
+            fitting_type_obj = tool.Ifc.get_object(fitting_type)
+            fitting_bbim_data = tool.Model.get_modeling_bbim_pset_data(fitting_type_obj, "BBIM_Fitting")
+            if not fitting_bbim_data:
+                return False
+
+            fitting_bbim_data = fitting_bbim_data["data_dict"]
+            for key in bbim_data:
+                requested_value = bbim_data[key]
+                fitting_value = fitting_bbim_data[key]
+                if isinstance(requested_value, float):
+                    compare_precision = None if key == "angle" else precision
+                    compare = tool.Cad.is_x(requested_value, fitting_value, compare_precision)
+                elif isinstance(fitting_value, list):
+                    compare = tool.Cad.are_vectors_equal(requested_value, Vector(fitting_value), precision)
+                if not compare:
+                    return False
+            return True
+
        def are_connected_elements_compatible(segments_data, fitting_data):
            # prevent arguments mutation, not using deepcopy because of the errors with ifc elements
            segments_data = [copy(i) for i in segments_data]
@@ -344,7 +423,7 @@ class MEPGenerator:

            # NOTE: I have a feeling that there are cases where order
            # in which we're checking the segments is important
-            # but I couldn't pin it down exact cases
+            # but I couldn't pin it down to exact cases
            for test_segment_data in fitting_data[:]:
                for base_segment_data in segments_data:
                    if not are_segments_compatible(test_segment_data, base_segment_data):
@@ -355,42 +434,62 @@ class MEPGenerator:
            return len(segments_data) == 0

        def pack_return_data(fitting_type, ports, segments_data):
+            packed_data = {"fitting_type": fitting_type}
+
+            if predefined_type == "OBSTRUCTION":
+                return packed_data
+
            for port in ports:
                port_local_position = V(*port.ObjectPlacement.RelativePlacement.Location.Coordinates)
                if tool.Cad.is_x(port_local_position.length, 0.0):
                    start_port = port
                    break
+
            connected_port = tool.System.get_connected_port(start_port)
            connected_element = tool.System.get_port_relating_element(connected_port)
            element_type = ifcopenshell.util.element.get_type(connected_element)
-            return {"fitting_type": fitting_type, "start_port_match": element_type == segments_data[0][0]}
+            packed_data["start_port_match"] = element_type == segments_data[0][0]
+
+            return packed_data

        fitting_types = tool.Ifc.get().by_type(self.get_mep_element_class_name(segments[0], "FittingType"))
        for fitting_type in fitting_types:
            if fitting_type.PredefinedType != predefined_type:
                continue
-            fittings = tool.Ifc.get_all_element_occurences(fitting_type)
+            fittings = tool.Ifc.get_all_element_occurrences(fitting_type)
            if not fittings:
                continue
-            fitting = fittings[0]

-            ports = ifcopenshell.util.system.get_ports(fitting)
-            fitting_data = []
-            fitting_connected_to_none_type = False
-            for port in ports:
-                connected_port = tool.System.get_connected_port(port)
-                connected_element = tool.System.get_port_relating_element(connected_port)
-                element_type = ifcopenshell.util.element.get_type(connected_element)
-                if element_type is None:
-                    fitting_connected_to_none_type = True
+            for fitting in fittings:
+                ports = ifcopenshell.util.system.get_ports(fitting)
+                fitting_data = []
+                skipped_the_occurrence = False
+                for port in ports:
+                    connected_port = tool.System.get_connected_port(port)
+
+                    # fitting port is not connected to anything
+                    if not connected_port:
+                        skipped_the_occurrence = True
+                        break
+
+                    connected_element = tool.System.get_port_relating_element(connected_port)
+                    element_type = ifcopenshell.util.element.get_type(connected_element)
+
+                    # fitting is connected to none type
+                    if element_type is None:
+                        skipped_the_occurrence = True
+                        break
+
+                    fitting_data.append((element_type, port.PredefinedType, port.SystemType))
+
+                # if we skipped the occurrence we still need to check other occurrences
+                # otherwise checking 1 occurrence is enough
+                if not skipped_the_occurrence:
+                    if compatible_with_bbim_data(fitting_type) and are_connected_elements_compatible(
+                        segments_data, fitting_data
+                    ):
+                        return pack_return_data(fitting_type, ports, segments_data)
                    break
-                fitting_data.append((element_type, port.PredefinedType, port.SystemType))
-
-            if fitting_connected_to_none_type:
-                continue
-
-            if are_connected_elements_compatible(segments_data, fitting_data):
-                return pack_return_data(fitting_type, ports, segments_data)

    def create_obstruction_type(self, segment):
        # code is very similar to "bim.add_type"
@@ -453,7 +552,7 @@ class MEPGenerator:
            obstruction_type = self.create_obstruction_type(segment)

        profile_joiner = DumbProfileJoiner()
-        # create obstruction occurence and setup it's length and port
+        # create obstruction occurrence and setup it's length and port
        # NOTE: at this point we loose current blender objects selection
        bpy.ops.bim.add_constr_type_instance(relating_type_id=obstruction_type.id())
        obstruction_obj = bpy.context.active_object
@@ -530,6 +629,9 @@ class MEPAddTransition(bpy.types.Operator, tool.Ifc.Operator):
    end_length: bpy.props.FloatProperty(
        name="End Length", description="Transition end length in SI units", default=0.1, subtype="DISTANCE"
    )
+    angle: bpy.props.FloatProperty(
+        name="Transition Angle", description="Transition angle in degrees", default=pi / 6, subtype="ANGLE"
+    )
    start_segment_id: bpy.props.IntProperty(name="Start Segment Element ID", default=0)
    end_segment_id: bpy.props.IntProperty(name="End Segment Element ID", default=0)

@@ -570,57 +672,143 @@ class MEPAddTransition(bpy.types.Operator, tool.Ifc.Operator):

        start_axis = tool.Model.get_flow_segment_axis(start_object)
        end_axis = tool.Model.get_flow_segment_axis(end_object)
+        start_object_rotation = start_object.matrix_world.to_quaternion()
+        start_object_z_basis = start_object_rotation.to_matrix().col[2]  # z basis vector
+        keep_only_z_axis = lambda p_ws: p_ws.dot(start_object_z_basis) * start_object_z_basis

-        # TODO: support cases when segments are partially or completely overlapping each other
-        if not tool.Cad.are_edges_collinear(start_axis, end_axis):
-            self.report({"ERROR"}, f"Failed to add transition - non collinear segments are not yet supported.")
+        if not tool.Cad.are_edges_parallel(start_axis, end_axis):
+            self.report({"ERROR"}, f"Failed to add transition - segments are not parallel.")
            return {"CANCELLED"}

+        # TODO: support different profiles rotation by local Z
+        # check rotation difference
+        end_object_rotation = end_object.matrix_world.to_quaternion()
+        rotation_difference_z = (
+            start_object.matrix_world.to_quaternion().rotation_difference(end_object_rotation).to_euler().z
+        )
+
+        def is_multiple_of_pi(value):
+            n = round(value / pi)
+            return tool.Cad.is_x(abs(value - n * pi), 0)
+
+        if not is_multiple_of_pi(rotation_difference_z):
+            self.report(
+                {"ERROR"},
+                "There is some rotation difference between profiles by local Z axis: "
+                f"{round(degrees(rotation_difference_z))} deg, this kind of transition is not yet supported.",
+            )
+            return {"CANCELLED"}
+
+        # setup start / end points
        start_segment_data = MEPGenerator().get_segment_data(start_element)
        end_segment_data = MEPGenerator().get_segment_data(end_element)
-        end_port = end_segment_data["start_port"]
-        start_port = start_segment_data["end_port"]
-
        points_ports_map = {
            start_segment_data["start_point"]: start_segment_data["start_port"],
            start_segment_data["end_point"]: start_segment_data["end_port"],
            end_segment_data["start_point"]: end_segment_data["start_port"],
            end_segment_data["end_point"]: end_segment_data["end_port"],
        }
-
-        start_point, end_point = tool.Cad.closest_points(
+        # transition points
+        (start_point, end_point), (first_segment_start, second_segment_end) = tool.Cad.closest_points(
            (start_segment_data["start_point"], start_segment_data["end_point"]),
            (end_segment_data["start_point"], end_segment_data["end_point"]),
        )
-        transition_dir = (end_point - start_point).normalized()
        start_port = points_ports_map[start_point]
        end_port = points_ports_map[end_point]

+        # figure profile offset
+        base_transition_dir = keep_only_z_axis(end_point - start_point).normalized()
+        flip_profile_offset = base_transition_dir.dot(start_object_z_basis) < 0
+
+        if tool.Cad.are_edges_collinear(start_axis, end_axis):
+            profile_offset = V(0, 0)
+        else:
+            to_start_object_space = start_object_rotation.inverted()
+            profile_offset = (
+                (to_start_object_space @ end_object.location) - (to_start_object_space @ start_object.location)
+            ).xy
+            profile_offset = profile_offset / si_conversion
+            if flip_profile_offset:
+                profile_offset *= V(1, -1)
+
+        # world space profile offset
+        profile_offset_ws = start_object_rotation @ (profile_offset * si_conversion).to_3d()
+
+        def get_segments_length():
+            start_dir = (start_point - first_segment_start).normalized()
+            segments_vector = second_segment_end - first_segment_start
+            return segments_vector.dot(start_dir)
+
+        entire_length = get_segments_length()
+
+        # can't rely on (end_point-start_point) here because
+        # transition might change the segments length and therefore direction will be changed
+        segments_dir = (start_point - first_segment_start).normalized()
+
        # add transition representation
        builder = ShapeBuilder(ifc_file)
        rep, transition_data = builder.mep_transition_shape(
-            start_element, end_element, self.start_length / si_conversion, self.end_length / si_conversion
+            start_element,
+            end_element,
+            self.start_length / si_conversion,
+            self.end_length / si_conversion,
+            angle=degrees(self.angle),
+            profile_offset=profile_offset,
        )

        if not rep:
            self.report({"ERROR"}, f"Failed to add transition - this kind of profiles is not yet supported.")
            return {"CANCELLED"}

-        middle_point = (start_point + end_point) / 2
        full_transition_length = transition_data["full_transition_length"] * si_conversion
-        start_segment_extend_point = middle_point - transition_dir * full_transition_length / 2
-        end_segment_extend_point = middle_point + transition_dir * full_transition_length / 2
-        DumbProfileJoiner().join_E(start_object, start_segment_extend_point)
-        DumbProfileJoiner().join_E(end_object, end_segment_extend_point)
+        if full_transition_length >= entire_length:
+            self.report(
+                {"ERROR"},
+                f"Failed to add transition - transition length is larger the segments and the distance between them.\n"
+                + f"Transition length: {full_transition_length:.2f}m, segments length: {entire_length:.2f}m",
+            )
+            ifcopenshell.api.run("geometry.remove_representation", ifc_file, representation=rep)
+            return {"CANCELLED"}

+        # calculate bunch of points to for adjustments
+        middle_point = keep_only_z_axis((start_point + end_point) / 2 - start_point) + start_point
+        start_segment_extend_point = middle_point - segments_dir * full_transition_length / 2
+        end_segment_extend_point = middle_point + segments_dir * full_transition_length / 2 + profile_offset_ws
+        transition_dir = keep_only_z_axis(end_segment_extend_point - start_segment_extend_point).normalized()
+
+        # adjust the segments
+        end_object_rotation = end_object.matrix_world.to_quaternion()
+        end_object_z_basis = end_object_rotation.to_matrix().col[2]  # z basis vector
+
+        # TODO: do it beforehand, as with bends
+        if tool.Cad.is_x(start_object_z_basis.dot(transition_dir), 1):
+            start_connection = "ATEND"
+        else:
+            start_connection = "ATSTART"
+        if tool.Cad.is_x(end_object_z_basis.dot(transition_dir), 1):
+            end_connection = "ATSTART"
+        else:
+            end_connection = "ATEND"
+        DumbProfileJoiner().join_E(start_object, start_segment_extend_point, start_connection)
+        DumbProfileJoiner().join_E(end_object, end_segment_extend_point, end_connection)
+
+        parametric_data = {
+            "start_length": self.start_length / si_conversion,
+            "end_length": self.end_length / si_conversion,
+            "profile_offset": profile_offset,
+            "angle": degrees(self.angle),
+        }
+
+        # find the compatible fitting type
        fitting_data = MEPGenerator().get_compatible_fitting_type(
-            [start_element, end_element], [start_port, end_port], "TRANSITION"
+            [start_element, end_element], [start_port, end_port], "TRANSITION", bbim_data=parametric_data
        )
-
        transition_type = fitting_data["fitting_type"] if fitting_data else None
        start_port_match = fitting_data["start_port_match"] if fitting_data else True
-
-        if not transition_type:
+        if transition_type:
+            # TODO: handle the case without creating a representation in the first place?
+            ifcopenshell.api.run("geometry.remove_representation", ifc_file, representation=rep)
+        else:  # create new fitting type if nothing is compatible
            mesh = bpy.data.meshes.new("Transition")
            obj = bpy.data.objects.new("Transition", mesh)
            transition_type = blenderbim.core.root.assign_class(
@@ -643,25 +831,353 @@ class MEPAddTransition(bpy.types.Operator, tool.Ifc.Operator):
            )

        # NOTE: at this point we loose current blender objects selection
+        # create transition element
        bpy.ops.bim.add_constr_type_instance(relating_type_id=transition_type.id())
        transition_obj = bpy.context.active_object

        # adjust transition segment rotation and location
+        # required since we'll base our `transition_obj_dir` on this
        transition_obj.matrix_world = start_object.matrix_world
        context.view_layer.update()
-        transition_obj_dir = tool.Cad.get_edge_direction(tool.Model.get_flow_segment_axis(transition_obj))
-        direction_match = tool.Cad.are_vectors_equal(transition_obj_dir, transition_dir)

+        # depending on transition direction we may need to flip it or attach it's origin to end segment
+        # direction can be different depending on:
+        # - order of the current segments
+        # - order of the segments that were used with the same transition type before
+        transition_obj_dir = tool.Cad.get_edge_direction(tool.Model.get_flow_segment_axis(transition_obj))
+        direction_match = tool.Cad.are_vectors_equal(transition_dir, transition_obj_dir)
        # if there are no mismatches or everything matches up we don't need to flip the transition
        if start_port_match != direction_match:
            transition_obj.matrix_world = start_object.matrix_world @ Matrix.Rotation(radians(180), 4, "X")
        transition_obj.location = start_segment_extend_point if start_port_match else end_segment_extend_point

        # add ports and connect them
-        ports = tool.System.add_ports(transition_obj)
+        ports = tool.System.add_ports(transition_obj, offset_end_port=profile_offset_ws)
+        if not start_port_match:
+            start_port, end_port = end_port, start_port
+        tool.Ifc.run("system.connect_port", port1=ports[0], port2=start_port, direction="NOTDEFINED")
+        tool.Ifc.run("system.connect_port", port1=ports[1], port2=end_port, direction="NOTDEFINED")
+        return {"FINISHED"}
+
+
+class MEPAddBend(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.mep_add_bend"
+    bl_label = "Add Bend"
+    bl_description = "Adds a bend between two MEP elements. Elements are either provided by ID or selected in Blender"
+    bl_options = {"REGISTER", "UNDO"}
+    start_length: bpy.props.FloatProperty(
+        name="Start Length", description="Bend start length in SI units", default=0.1, subtype="DISTANCE"
+    )
+    end_length: bpy.props.FloatProperty(
+        name="End Length", description="Bend end length in SI units", default=0.1, subtype="DISTANCE"
+    )
+    start_segment_id: bpy.props.IntProperty(name="Start Segment Element ID", default=0)
+    end_segment_id: bpy.props.IntProperty(name="End Segment Element ID", default=0)
+    radius: bpy.props.FloatProperty(
+        "Bend Inner Radius", description="Bend inner radius in SI units", default=0.2, subtype="DISTANCE"
+    )
+
+    def _execute(self, context):
+        start_element, end_element = None, None
+        ifc_file = tool.Ifc.get()
+        si_conversion = ifcopenshell.util.unit.calculate_unit_scale(ifc_file)
+
+        self.start_length, self.end_length = 0, 0
+
+        if not (self.start_length == 0 and self.end_length == 0):
+            self.report({"ERROR"}, f"Only zero lengths are now supported.")
+            return {"CANCELLED"}
+
+        if self.start_segment_id and self.end_segment_id:
+            start_element = ifc_file.by_id(self.start_segment_id)
+            end_element = ifc_file.by_id(self.end_segment_id)
+            start_object = tool.Ifc.get_object(start_element)
+            end_object = tool.Ifc.get_object(end_element)
+
+        elif len(context.selected_objects) == 2:
+            start_object = context.active_object
+            end_object = next(o for o in context.selected_objects if o != context.active_object)
+            start_element = tool.Ifc.get_entity(start_object)
+            end_element = tool.Ifc.get_entity(end_object)
+            if not start_element or not end_element:
+                self.report({"ERROR"}, f"Two IFC elements should be selected for the bend.")
+                return {"CANCELLED"}
+
+        else:
+            self.report({"ERROR"}, f"Two IFC elements should be provided for the bend.")
+            return {"CANCELLED"}
+
+        # check rotation difference
+        def rotation_difference_check():
+            end_object_rotation = end_object.matrix_world.to_quaternion()
+            rotation_difference = (
+                start_object.matrix_world.to_quaternion().rotation_difference(end_object_rotation).to_euler()
+            )
+
+            def is_multiple_of_pi(value):
+                n = round(value / pi)
+                return tool.Cad.is_x(abs(value - n * pi), 0)
+
+            if not is_multiple_of_pi(rotation_difference.z):
+                error_msg = (
+                    "There is some rotation difference between profiles by local Z axis: "
+                    f"{round(degrees(rotation_difference.z))} deg, adding a bend is not possible."
+                )
+                return error_msg
+
+        if error_msg := rotation_difference_check():
+            self.report({"ERROR"}, error_msg)
+            return {"CANCELLED"}
+
+        # check segments types
+        def types_check():
+            start_type = ifcopenshell.util.element.get_type(start_element)
+            end_type = ifcopenshell.util.element.get_type(end_element)
+            if not start_type or not end_type:
+                return False
+            return start_type == end_type
+
+        if not types_check():
+            self.report(
+                {"ERROR"},
+                "Segments types do not match " "or one of the segments doesn't have type which is required for a bend.",
+            )
+            return {"CANCELLED"}
+
+        # TODO: support circular profiles
+        profile = tool.Model.get_flow_segment_profile(start_element)
+        if not profile.is_a("IfcRectangleProfileDef"):
+            self.report(
+                {
+                    "ERROR",
+                    "For now Only IfcRectangleProfileDef profiles supported for a bend, "
+                    f"the segments are {profile.is_a()}",
+                }
+            )
+            return {"CANCELLED"}
+
+        def get_dim(profile):
+            if profile.is_a("IfcRectangleProfileDef"):
+                return V(profile.XDim / 2, profile.YDim / 2)
+            elif profile.is_a("IfcCircleProfileDef"):
+                return V(profile.Radius, profile.Radius)
+            return None
+
+        # setup start / end points
+        start_object_rotation = start_object.matrix_world.to_quaternion().to_matrix()
+        start_segment_data = MEPGenerator().get_segment_data(start_element)
+        end_segment_data = MEPGenerator().get_segment_data(end_element)
+        points_ports_map = {
+            start_segment_data["start_point"]: start_segment_data["start_port"],
+            start_segment_data["end_point"]: start_segment_data["end_port"],
+            end_segment_data["start_point"]: end_segment_data["start_port"],
+            end_segment_data["end_point"]: end_segment_data["end_port"],
+        }
+
+        get_z_basis = lambda o: o.matrix_world.col[2].normalized().to_3d()
+        segments_intersection_ws = tool.Cad.intersect_edges(
+            (start_object.location, start_object.location + get_z_basis(start_object)),
+            (end_object.location, end_object.location + get_z_basis(end_object)),
+        )[0]
+
+        start_point, first_segment_start = tool.Cad.closest_and_furthest_vectors(
+            segments_intersection_ws, (start_segment_data["start_point"], start_segment_data["end_point"])
+        )
+        end_point, second_segment_end = tool.Cad.closest_and_furthest_vectors(
+            segments_intersection_ws, (end_segment_data["start_point"], end_segment_data["end_point"])
+        )
+
+        start_port = points_ports_map[start_point]
+        end_port = points_ports_map[end_point]
+        start_point_on_origin = start_point == start_segment_data["start_point"]
+        start_connection = "ATSTART" if start_point_on_origin else "ATEND"
+        start_segment_sign = -1 if start_point_on_origin else 1
+
+        end_point_on_origin = end_point == end_segment_data["start_point"]
+        end_connection = "ATSTART" if end_point_on_origin else "ATEND"
+        end_segment_sign = -1 if end_point_on_origin else 1
+
+        profile_dim = get_dim(profile) * si_conversion
+
+        # TODO: profile offset may need to be flipped (check transition code)
+        to_start_object_space = start_object_rotation.inverted()
+        profile_offset = (to_start_object_space @ end_point) - (to_start_object_space @ start_point)
+
+        def check_for_double_bends():
+            # The theory is To avoid double bends, the profile offset should occur along only two axes:
+            # 1) The local Z-axis of the start segment
+            # 2) One of the lateral axes (either X or Y)
+            #
+            # Double bend required when:
+            # - there are 2 or 0 lateral axes involved
+            # - offset appear by the non-lateral axis
+            #
+            # NOTE: some double bends are only possible for square profiles:
+            # https://i.imgur.com/ZhdGbEp.png
+
+            z_axis_end_object = end_object.matrix_world.col[2].normalized().to_3d()
+            z_axis_end_object_local = to_start_object_space @ z_axis_end_object
+            lateral_axes = [i for i in range(2) if not tool.Cad.is_x(z_axis_end_object_local[i], 0)]
+
+            if len(lateral_axes) != 1:
+                return (
+                    None,
+                    f"For now only one lateral axis is supported for a bend (double bends not supported). Found lateral axes: {len(lateral_axes)}.",
+                )
+
+            non_lateral_axis = 0 if lateral_axes[0] == 1 else 1
+            non_lateral_axis_offset = profile_offset[non_lateral_axis]
+            if not tool.Cad.is_x(non_lateral_axis_offset, 0):
+                return (
+                    None,
+                    "For now offset by non-lateral axis is not supported for a bend (double bends not supported).\n"
+                    f"Detected an offset of {round(non_lateral_axis_offset, 5)} along the local axis {'XY'[non_lateral_axis]} when lateral axis is {'XY'[lateral_axes[0]]}.",
+                )
+
+            return lateral_axes[0], None
+
+        lateral_axis, error_msg = check_for_double_bends()
+        if error_msg:
+            self.report({"ERROR"}, error_msg)
+            return {"CANCELLED"}
+
+        O = V(0, 0, 0)
+        angle = tool.Cad.angle_edges((get_z_basis(start_object), O), (get_z_basis(end_object), O))
+
+        lateral_sign = tool.Cad.sign(profile_offset[lateral_axis])
+        radial_offset = V(0, 0, 0)
+        ref_point_radius = self.radius + profile_dim[lateral_axis]
+        radial_offset[lateral_axis] = ref_point_radius * (1 - cos(angle)) * lateral_sign
+        radial_offset.z = ref_point_radius * sin(angle)
+
+        def get_segments_extend():
+            segments_intersection = segments_intersection_ws - start_point
+            segments_intersection = to_start_object_space @ segments_intersection
+
+            # since tangent segments are equal
+            # if drawn for the circle from the same point
+            required_offset = ref_point_radius * tan(angle / 2)
+
+            current_start_offset = segments_intersection.length
+            current_end_offset = (segments_intersection - profile_offset).length
+
+            start_extend = current_start_offset - required_offset
+            end_extend = current_end_offset - required_offset
+
+            return start_extend, end_extend
+
+        def check_new_segment_length(start_point, end_point, extend_point):
+            """Check if segment is placed too near to the bend point.
+
+            The idea is that we can either extend segment toward the bend
+            but we can shrink it only until it's start.
+
+            If the segment is too near it will return offset to fix the problem,
+            otherwise returns `None`.
+
+            """
+            base_edge = end_point - start_point
+            new_edge = extend_point - start_point
+            projection = new_edge.dot(base_edge.normalized())
+            if projection < 0 or tool.Cad.is_x(projection, 0):
+                return projection
+            return None
+
+        # adjust segments to fit the radius and angle
+        start_segment_extend, end_segment_extend = get_segments_extend()
+        start_segment_extend_point = start_point + start_segment_sign * start_segment_extend * get_z_basis(start_object)
+        projection = check_new_segment_length(first_segment_start, start_point, start_segment_extend_point)
+        if projection is not None:
+            self.report(
+                {"ERROR"},
+                f"Start segment starts too near to the bend, need to offset it atleast by {round(projection, 3)} m.",
+            )
+            return {"ERROR"}
+
+        end_segment_extend_point = end_point + end_segment_sign * end_segment_extend * get_z_basis(end_object)
+        projection = check_new_segment_length(second_segment_end, end_point, end_segment_extend_point)
+        if projection is not None:
+            self.report(
+                {"ERROR"},
+                f"End segment starts too near to the bend, need to offset it atleast by {round(projection, 3)} m.",
+            )
+            return {"ERROR"}
+
+        DumbProfileJoiner().join_E(start_object, start_segment_extend_point, start_connection)
+        DumbProfileJoiner().join_E(end_object, end_segment_extend_point, end_connection)
+
+        context.view_layer.update()  # update matrices
+
+        builder = ShapeBuilder(ifc_file)
+        rep, bend_data = builder.mep_bend_shape(
+            start_element,
+            self.start_length / si_conversion,
+            self.end_length / si_conversion,
+            angle,
+            self.radius / si_conversion,
+            profile_offset / si_conversion,
+            flip_z_axis=start_segment_sign == -1,
+        )
+
+        bpy.ops.bim.create_shape_from_step_id(step_id=rep.id(), should_include_curves=True)
+
+        # find the compatible fitting type
+        fitting_data = MEPGenerator().get_compatible_fitting_type(
+            [start_element, end_element], [start_port, end_port], "BEND"
+        )
+        bend_type = fitting_data["fitting_type"] if fitting_data else None
+        start_port_match = fitting_data["start_port_match"] if fitting_data else True
+        if bend_type:
+            # TODO: handle the case without creating a representation in the first place?
+            ifcopenshell.api.run("geometry.remove_representation", ifc_file, representation=rep)
+        else:  # create new fitting type if nothing is compatible
+            mesh = bpy.data.meshes.new("Bend")
+            obj = bpy.data.objects.new("Bend", mesh)
+            bend_type = blenderbim.core.root.assign_class(
+                tool.Ifc,
+                tool.Collector,
+                tool.Root,
+                obj=obj,
+                ifc_class=MEPGenerator().get_mep_element_class_name(start_element, "FittingType"),
+                predefined_type="BEND",
+                should_add_representation=False,
+            )
+            body = ifcopenshell.util.representation.get_context(ifc_file, "Model", "Body", "MODEL_VIEW")
+            tool.Model.replace_object_ifc_representation(body, obj, rep)
+            pset = ifcopenshell.api.run("pset.add_pset", tool.Ifc.get(), product=bend_type, name="BBIM_Fitting")
+            ifcopenshell.api.run(
+                "pset.edit_pset",
+                tool.Ifc.get(),
+                pset=pset,
+                properties={"Data": json.dumps(bend_data, default=list)},
+            )
+
+        # NOTE: at this point we loose current blender objects selection
+        # create transition element
+        bpy.ops.bim.add_constr_type_instance(relating_type_id=bend_type.id())
+        fitting_obj = bpy.context.active_object
+
+        # adjust fitting object rotation and location
+        # required since we'll base our `fitting_obj_dir` on this
+        fitting_obj.matrix_world = start_object.matrix_world
+        context.view_layer.update()
+
+        # depending on fitting direction we may need to flip it or attach it's origin to end segment
+        # direction can be different depending on:
+        # - order of the current segments
+        # - order of the segments that were used with the same fitting type before
+        direction_match = tool.Cad.are_vectors_equal(get_z_basis(start_object), get_z_basis(fitting_obj))
+        # if there are no mismatches or everything matches up we don't need to flip the transition
+        if start_port_match != direction_match:
+            fitting_obj.matrix_world = start_object.matrix_world @ Matrix.Rotation(radians(180), 4, "X")
+        fitting_obj.location = start_segment_extend_point if start_port_match else end_segment_extend_point
+
+        # add ports and connect them
+        ports = tool.System.add_ports(fitting_obj, offset_end_port=start_object_rotation @ (radial_offset * V(1, 1, 0)))
        if not start_port_match:
            start_port, end_port = end_port, start_port
        tool.Ifc.run("system.connect_port", port1=ports[0], port2=start_port, direction="NOTDEFINED")
        tool.Ifc.run("system.connect_port", port1=ports[1], port2=end_port, direction="NOTDEFINED")

+        self.report({"INFO"}, f"Success!.. kind of. The angle was {round(bend_data['angle'])}")
        return {"FINISHED"}
@@ -70,7 +70,10 @@ class FilledOpeningGenerator:
            )

        if target is None:
-            target = bpy.context.scene.cursor.location
+            should_set_z_level = True
+            target = bpy.context.scene.cursor.location.copy()
+        else:
+            should_set_z_level = False

        # Sometimes, the voided_obj may be an aggregate, which won't have any representation.
        if voided_obj.data:
@@ -86,12 +89,17 @@ class FilledOpeningGenerator:
            axis = tool.Model.get_wall_axis(voided_obj, layers=layers)["base"]

            new_matrix = voided_obj.matrix_world.copy()
-            new_matrix.translation = tool.Cad.point_on_edge(target, axis)
+            point_on_axis = tool.Cad.point_on_edge(target, axis)
+            new_matrix.translation.x = point_on_axis.x
+            new_matrix.translation.y = point_on_axis.y

-            if filling.is_a("IfcDoor"):
-                new_matrix.translation.z = voided_obj.matrix_world.translation.z
+            if should_set_z_level:
+                if filling.is_a("IfcDoor"):
+                    new_matrix.translation.z = voided_obj.matrix_world.translation.z
+                else:
+                    new_matrix.translation.z = voided_obj.matrix_world.translation.z + props.rl2
            else:
-                new_matrix.translation.z = voided_obj.matrix_world.translation.z + props.rl2
+                new_matrix.translation.z = filling_obj.matrix_world.copy().translation.z

            filling_obj.matrix_world = new_matrix
            bpy.context.view_layer.update()
@@ -498,10 +506,14 @@ class AddBoolean(Operator, tool.Ifc.Operator):
    bl_idname = "bim.add_boolean"
    bl_label = "Add Boolean"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Applies a boolean to the selected IFC object using the other selected blender object as a void"

    @classmethod
    def poll(cls, context):
-        return len(context.selected_objects) == 2
+        if not len(context.selected_objects) == 2:
+            cls.poll_message_set("Exactly 2 objects need to be selected.")
+            return False
+        return True

    def _execute(self, context):
        props = context.scene.BIMModelProperties
@@ -646,6 +658,7 @@ class RemoveBooleans(Operator, tool.Ifc.Operator, AddObjectHelper):
    bl_options = {"REGISTER", "UNDO"}

    def _execute(self, context):
+        upstream_obj = None
        for obj in context.selected_objects:
            if (
                not obj.data
@@ -673,6 +686,8 @@ class RemoveBooleans(Operator, tool.Ifc.Operator, AddObjectHelper):
                        should_sync_changes_first=False,
                    )
            bpy.data.objects.remove(obj)
+        
+        tool.Blender.set_active_object(upstream_obj)
        return {"FINISHED"}


@@ -735,12 +750,19 @@ class EditOpenings(Operator, tool.Ifc.Operator):
    def _execute(self, context):
        props = bpy.context.scene.BIMModelProperties
        building_objs = set()
+        model = tool.Ifc.get()
+        all_openings = model.by_type("IfcOpeningElement")
+        similar_openings = []
+
        for obj in context.selected_objects:
            element = tool.Ifc.get_entity(obj)
            if not element:
                continue
            openings = [r.RelatedOpeningElement for r in element.HasOpenings]
            for opening in openings:
+                for all_opening in all_openings:
+                    if all_opening.ObjectPlacement == opening.ObjectPlacement:
+                        similar_openings.append(all_opening)
                opening_obj = tool.Ifc.get_object(opening)
                if opening_obj:
                    if tool.Ifc.is_edited(opening_obj):
@@ -749,6 +771,8 @@ class EditOpenings(Operator, tool.Ifc.Operator):
                        blenderbim.core.geometry.edit_object_placement(
                            tool.Ifc, tool.Geometry, tool.Surveyor, obj=opening_obj
                        )
+                        for similar_opening in similar_openings:
+                            similar_opening.ObjectPlacement = opening.ObjectPlacement
                    building_objs.add(obj)
                    building_objs.update(self.get_all_building_objects_of_similar_openings(opening))
                    tool.Ifc.unlink(element=opening, obj=opening_obj)
@@ -773,6 +797,34 @@ class EditOpenings(Operator, tool.Ifc.Operator):
                            results.add(obj)
        return results

+class CloneOpening(Operator, tool.Ifc.Operator):
+    bl_idname = "bim.clone_opening"
+    bl_label = "Clone Opening"
+    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Create and assign to the selected element the selected opening and assign to it the same representation and object placement"
+
+    def _execute(self, context):
+        objects = bpy.context.selected_objects
+
+        for obj in objects:
+            entity = tool.Ifc.get_entity(obj)
+            if entity.is_a() == "IfcWall":
+                wall = entity
+                continue
+            if entity.is_a() == "IfcOpeningElement":
+                opening = entity
+                continue
+
+        opening_placement = opening.ObjectPlacement
+        opening_representations = opening.Representation.Representations
+
+        new_opening = ifcopenshell.api.run("root.create_entity", tool.Ifc.get(), ifc_class="IfcOpeningElement")
+        for representation in opening_representations:
+            ifcopenshell.api.run("geometry.assign_representation", tool.Ifc.get(), product = new_opening, representation = representation)
+
+        ifcopenshell.api.run("void.add_opening", tool.Ifc.get(), opening = new_opening, element = wall)
+        new_opening.ObjectPlacement = opening_placement
+        return {"FINISHED"}

 # TODO: merge with ProfileDecorator?
 class DecorationsHandler:
@@ -213,7 +213,7 @@ class AddConstrTypeInstance(bpy.types.Operator):
                        tool.Ifc, tool.Collector, tool.Spatial, structure_obj=parent_obj, element_obj=obj
                    )

-        # set occurences properties for the types defined with modifiers
+        # set occurrences properties for the types defined with modifiers
        if instance_class in ["IfcWindow", "IfcDoor"]:
            pset_name = f"BBIM_{instance_class[3:]}"
            bbim_pset = ifcopenshell.util.element.get_psets(element).get(pset_name, None)
@@ -272,13 +272,21 @@ class DumbProfileJoiner:
        body = copy.deepcopy(axis1)
        self.recreate_profile(element1, profile1, axis, body)

-    def join_E(self, profile1, target):
+    def join_E(self, profile1, target, connection=None):
+        """`connection` = `ATEND` / `ATSTART` to explicitly define the reference point for the join.
+
+        For example if profile 1m long and `target` is at (0, 0, 0.1) and `connection` = `None`
+        it will implicitly use `connection` = `ATSTART` resulting in profile object 0.9m long and moved to (0, 0, 0.1).
+
+        But with `connection` = `ATEND` it will result in the profile object 0.1m long, locaiton unchanged.
+        """
        element1 = tool.Ifc.get_entity(profile1)
        if not element1:
            return
        axis1 = self.get_profile_axis(profile1)
-        intersect, connection = mathutils.geometry.intersect_point_line(target, *axis1)
-        connection = "ATEND" if connection > 0.5 else "ATSTART"
+        intersect, connection_value = mathutils.geometry.intersect_point_line(target, *axis1)
+        if connection is None:
+            connection = "ATEND" if connection_value > 0.5 else "ATSTART"

        ifcopenshell.api.run("geometry.disconnect_path", tool.Ifc.get(), element=element1, connection_type=connection)

@@ -59,10 +59,10 @@ def update_railing_modifier_ifc_data(context):

    # type attributes
    element.PredefinedType = "USERDEFINED"
-    # occurences attributes
-    occurences = tool.Ifc.get_all_element_occurences(element)
-    for occurence in occurences:
-        occurence.ObjectType = props.railing_type
+    # occurrences attributes
+    occurrences = tool.Ifc.get_all_element_occurrences(element)
+    for occurrence in occurrences:
+        occurrence.ObjectType = props.railing_type

    # update pset
    pset_common = tool.Pset.get_element_pset(element, "Pset_RailingCommon")
@@ -40,10 +40,6 @@ from pprint import pprint
 # https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRoofType.htm


-def float_is_zero(f):
-    return 0.0001 >= f >= -0.0001
-
-
 def bm_mesh_clean_up(bm):
    # remove internal edges and faces
    # adding missing faces so we could rely on `e.is_boundary` later
@@ -99,7 +95,7 @@ def is_valid_roof_footprint(bm):
    # should be bmesh to support edit mode
    bm.verts.ensure_lookup_table()
    base_z = bm.verts[0].co.z
-    all_verts_same_level = all([float_is_zero(v.co.z - base_z) for v in bm.verts[1:]])
+    all_verts_same_level = all([tool.Cad.is_x(v.co.z - base_z, 0) for v in bm.verts[1:]])
    if not all_verts_same_level:
        return (
            {"ERROR"},
@@ -202,7 +198,7 @@ def generate_hiped_roof_bmesh(

    def find_identical_new_vert(co):
        for v in bm.verts:
-            if float_is_zero((co - v.co).length):
+            if tool.Cad.is_x((co - v.co).length, 0):
                return v

    def find_other_polygon_verts(edge):
@@ -234,7 +230,7 @@ def generate_hiped_roof_bmesh(
    bottom_chords_to_remove = []

    def is_footprint_vert(v):
-        return float_is_zero(v.co.z - footprint_z)
+        return tool.Cad.is_x(v.co.z - footprint_z, 0)

    def is_footprint_edge(edge):
        return all(is_footprint_vert(v) for v in edge.verts)
@@ -326,7 +322,7 @@ def generate_hiped_roof_bmesh(
    default_offset_dir = Vector([0, 0, 1]) * roof_thickness
    footprint_verts = set()

-    if not float_is_zero(rafter_edge_angle):
+    if not tool.Cad.is_x(rafter_edge_angle, 0):
        footprint_edges = []
        for edge in extruded_edges:
            if is_footprint_edge(edge):
@@ -398,7 +394,7 @@ def update_roof_modifier_ifc_data(context):
        if not angle_layer:
            return False
        for edge_angle in angle_layer:
-            if float_is_zero(edge_angle - pi / 2):
+            if tool.Cad.is_x(edge_angle - pi / 2, 0):
                return True
        return False

@@ -406,8 +402,8 @@ def update_roof_modifier_ifc_data(context):
    if props.roof_type == "HIP/GABLE ROOF":
        element.PredefinedType = "GABLE_ROOF" if roof_is_gabled() else "HIP_ROOF"

-    # occurences attributes
-    # occurences = tool.Ifc.get_all_element_occurences(element)
+    # occurrences attributes
+    # occurrences = tool.Ifc.get_all_element_occurrences(element)

    tool.Ifc.edit(obj)

@@ -95,19 +95,19 @@ class GenerateSpace(bpy.types.Operator, tool.Ifc.Operator):
        gross_settings.set(gross_settings.DISABLE_OPENING_SUBTRACTIONS, True)

        for obj in bpy.context.visible_objects:
-            element = tool.Ifc.get_entity(obj)
+            visible_element = tool.Ifc.get_entity(obj)

            if (
-                not element
+                not visible_element
                or obj.type != "MESH"
-                or not self.is_bounding_class(element)
+                or not self.is_bounding_class(visible_element)
                or not tool.Drawing.is_intersecting_plane(obj, self.cut_point, self.cut_normal)
            ):
                continue

            old_mesh = None
-            if element.HasOpenings:
-                new_mesh = self.create_mesh(ifcopenshell.geom.create_shape(gross_settings, element))
+            if visible_element.HasOpenings:
+                new_mesh = self.create_mesh(ifcopenshell.geom.create_shape(gross_settings, visible_element))
                old_mesh = obj.data
                obj.data = new_mesh

@@ -156,15 +156,14 @@ class BIM_PT_authoring(Panel):
 class BIM_PT_Grids(Panel):
    bl_label = "Grids"
    bl_idname = "BIM_PT_Grids"
-    bl_space_type = "VIEW_3D"
-    bl_region_type = "UI"
    bl_options = {"DEFAULT_CLOSED"}
-    bl_category = "BlenderBIM"
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+    bl_parent_id = "BIM_PT_project_setup"

    def draw(self, context):
-        self.animation_props = context.scene.BIMAnimationProperties
-        row = self.layout.row()
-        row.operator("mesh.add_grid", icon="ADD", text="Add Grids")
+        self.layout.row().operator("mesh.add_grid", icon="ADD", text="Add Grids")


 class BIM_PT_array(bpy.types.Panel):
@@ -1119,8 +1119,13 @@ class DumbWallJoiner:
                other = tool.Ifc.get_object(rel.RelatedElement)
                if connection not in ["ATPATH", "NOTDEFINED"]:
                    self.join(
-                        obj, other, connection, rel.RelatedConnectionType, is_relating=True, description=rel.Description
-                    )
+                        obj, 
+                        other, 
+                        connection, 
+                        rel.RelatedConnectionType, 
+                        is_relating=True, 
+                        description=rel.Description
+                  )
        for rel in element.ConnectedFrom:
            if rel.is_a("IfcRelConnectsPathElements"):
                connection = rel.RelatedConnectionType
@@ -1299,7 +1304,7 @@ class DumbWallJoiner:
            # The user has moved the wall into an invalid position that cannot connect at the desired end
            return False

-        self.axis[1 if connection1 == "ATEND" else 0] = intersect
+        self.axis = proposed_axis

        # Work out body

@@ -1309,55 +1314,79 @@ class DumbWallJoiner:
        tp1 = wall1.matrix_world @ Vector(wall1.bound_box[1])

        # Axis lines on bottom, for reference, base, and side axes
-        bra1 = (Vector((*axis1["reference"][0], bp1[2])), Vector((*axis1["reference"][1], bp1[2])))
-        bba1 = (Vector((*axis1["base"][0], bp1[2])), Vector((*axis1["base"][1], bp1[2])))
-        bsa1 = (Vector((*axis1["side"][0], bp1[2])), Vector((*axis1["side"][1], bp1[2])))
-        bba2 = (Vector((*axis2["base"][0], bp2[2])), Vector((*axis2["base"][1], bp2[2])))
-        bsa2 = (Vector((*axis2["side"][0], bp2[2])), Vector((*axis2["side"][1], bp2[2])))
+        def to_3d_axis(axis, z):
+            return (Vector((*axis[0], z)), Vector((*axis[1], z)))
+
+        bra1 = to_3d_axis(axis1["reference"], bp1.z)
+        bba1 = to_3d_axis(axis1["base"], bp1.z)
+        tba1 = to_3d_axis(axis1["base"], tp1.z)
+        bsa1 = to_3d_axis(axis1["side"], bp1.z)
+        bba2 = to_3d_axis(axis2["base"], bp2.z)
+        bsa2 = to_3d_axis(axis2["side"], bp2.z)

        # Intersecting the walls sides defined by planes gives 4 lines of intersection
        # Line point, and line direction
-        lp1, ld1 = mathutils.geometry.intersect_plane_plane(bba1[0], normal1, bba2[0], normal2)
-        lp2, ld2 = mathutils.geometry.intersect_plane_plane(bba1[0], normal1, bsa2[0], normal2)
-        lp3, ld3 = mathutils.geometry.intersect_plane_plane(bsa1[0], normal1, bba2[0], normal2)
-        lp4, ld4 = mathutils.geometry.intersect_plane_plane(bsa1[0], normal1, bsa2[0], normal2)
+        lpb1, ldb1 = mathutils.geometry.intersect_plane_plane(bba1[0], normal1, bba2[0], normal2)
+        lpb2, ldb2 = mathutils.geometry.intersect_plane_plane(bba1[0], normal1, bsa2[0], normal2)
+        lps1, lds1 = mathutils.geometry.intersect_plane_plane(bsa1[0], normal1, bba2[0], normal2)
+        lps2, lds2 = mathutils.geometry.intersect_plane_plane(bsa1[0], normal1, bsa2[0], normal2)

        # Intersecting the 4 lines gives the 8 possible verts of intersection
        # 4 on bottom, and 4 on top. 4 on our base line, 4 on our side line.
-        bb1 = mathutils.geometry.intersect_line_plane(lp1, lp1 + ld1, bp1, Vector((0, 0, 1)))
-        bb2 = mathutils.geometry.intersect_line_plane(lp2, lp2 + ld2, bp1, Vector((0, 0, 1)))
-        bs1 = mathutils.geometry.intersect_line_plane(lp3, lp3 + ld3, bp1, Vector((0, 0, 1)))
-        bs2 = mathutils.geometry.intersect_line_plane(lp4, lp4 + ld4, bp1, Vector((0, 0, 1)))
-        tb1 = mathutils.geometry.intersect_line_plane(lp1, lp1 + ld1, tp1, Vector((0, 0, 1)))
-        tb2 = mathutils.geometry.intersect_line_plane(lp2, lp2 + ld2, tp1, Vector((0, 0, 1)))
-        ts1 = mathutils.geometry.intersect_line_plane(lp3, lp3 + ld3, tp1, Vector((0, 0, 1)))
-        ts2 = mathutils.geometry.intersect_line_plane(lp4, lp4 + ld4, tp1, Vector((0, 0, 1)))
+        # Diagram: https://i.imgur.com/jwWx2Ox.png
+        # NOTE: bb/bs always equal lpb/lps?
+        bb1 = mathutils.geometry.intersect_line_plane(lpb1, lpb1 + ldb1, bp1, Vector((0, 0, 1)))
+        bb2 = mathutils.geometry.intersect_line_plane(lpb2, lpb2 + ldb2, bp1, Vector((0, 0, 1)))
+        bs1 = mathutils.geometry.intersect_line_plane(lps1, lps1 + lds1, bp1, Vector((0, 0, 1)))
+        bs2 = mathutils.geometry.intersect_line_plane(lps2, lps2 + lds2, bp1, Vector((0, 0, 1)))
+
+        # similar to bb/bs but also have local z offset
+        tb1 = mathutils.geometry.intersect_line_plane(lpb1, lpb1 + ldb1, tp1, Vector((0, 0, 1)))
+        tb2 = mathutils.geometry.intersect_line_plane(lpb2, lpb2 + ldb2, tp1, Vector((0, 0, 1)))
+        ts1 = mathutils.geometry.intersect_line_plane(lps1, lps1 + lds1, tp1, Vector((0, 0, 1)))
+        ts2 = mathutils.geometry.intersect_line_plane(lps2, lps2 + lds2, tp1, Vector((0, 0, 1)))

        # Let's distinguish the 8 points by whether they are nearer or further away from the other end
        # These 8 points will be used to find the final body position and clippings.
-        i = 0 if connection1 == "ATEND" else 1
-        j = 1 if connection1 == "ATEND" else 0
-        bbn = tool.Cad.closest_vector(axis1["base"][i].to_3d(), (bb1, bb2))
-        bbf = bb2 if bbn == bb1 else bb1
-        bsn = tool.Cad.closest_vector(axis1["side"][i].to_3d(), (bs1, bs2))
-        bsf = bs2 if bsn == bs1 else bs1
-        tbn = tool.Cad.closest_vector(axis1["base"][i].to_3d(), (tb1, tb2))
-        tbf = tb2 if tbn == tb1 else tb1
-        tsn = tool.Cad.closest_vector(axis1["side"][i].to_3d(), (ts1, ts2))
-        tsf = ts2 if tsn == ts1 else ts1
+        connected_at_end = connection1 == "ATEND"
+        i = 0 if connected_at_end else 1

+        def get_closest_and_furthest_vectors(ref_point_2d, vectors, clamp_axis=None):
+            def clamp_point_by_direction(point, edge):
+                percent = tool.Cad.edge_percent(point, edge)
+                if percent < 0:
+                    return edge[0]
+                return point
+
+            # When there is a small angle between walls, intersection points can occur outside the wall's axis.
+            # Which can lead to inaccuracies - therefore we bottom clamp them to stay within the axis
+            if clamp_axis:
+                # if wall connected at the start then reference point will be at the end
+                # therefore we reverse the axis
+                if not connected_at_end:
+                    clamp_axis = clamp_axis[::-1]
+                vectors = tuple([clamp_point_by_direction(v, clamp_axis) for v in vectors])
+
+            return tool.Cad.closest_and_furthest_vectors(ref_point_2d.to_3d(), vectors)
+
+        bbn, bbf = get_closest_and_furthest_vectors(axis1["base"][i], (bb1, bb2), bba1)
+        bsn, bsf = get_closest_and_furthest_vectors(axis1["side"][i], (bs1, bs2))
+        tbn, tbf = get_closest_and_furthest_vectors(axis1["base"][i], (tb1, tb2), tba1)
+        tsn, tsf = get_closest_and_furthest_vectors(axis1["side"][i], (ts1, ts2))
+
+        j = 1 if connected_at_end else 0
        if description == "MITRE":
            # Mitre joints are an unofficial convention
            bsf_ = tool.Cad.point_on_edge(bsf, bba1)
            tbf_ = tool.Cad.point_on_edge(tbf, bba1)
            tsf_ = tool.Cad.point_on_edge(tsf, bba1)
-            new_body = tool.Cad.furthest_vector(bba1[i], (bbf, bsf_)).copy()
-            new_body = tool.Cad.furthest_vector(bba1[i], (new_body, tbf_)).copy()
+            new_body = tool.Cad.furthest_vector(bba1[i], (bbf, bsf_))
+            new_body = tool.Cad.furthest_vector(bba1[i], (new_body, tbf_))
            new_body = tool.Cad.furthest_vector(bba1[i], (new_body, tsf_)).copy()
            self.body[j] = tool.Cad.point_on_edge(new_body, bra1).to_2d()

            if connection1 == connection2:
-                if (connection1 == "ATEND" and angle > 0) or (connection1 != "ATEND" and angle < 0):
+                if (connected_at_end and angle > 0) or (not connected_at_end and angle < 0):
                    pt = bbf.to_2d().to_3d()
                    x_axis = bsn - bbf
                    y_axis = tbf - bbf
@@ -1366,7 +1395,7 @@ class DumbWallJoiner:
                    x_axis = bsf - bbn
                    y_axis = tbn - bbn
            else:
-                if (connection1 == "ATEND" and angle < 0) or (connection1 != "ATEND" and angle > 0):
+                if (connected_at_end and angle < 0) or (not connected_at_end and angle > 0):
                    pt = bbf.to_2d().to_3d()
                    x_axis = bsn - bbf
                    y_axis = tbf - bbf
@@ -1377,6 +1406,9 @@ class DumbWallJoiner:

            if connection1 != "ATEND":
                y_axis *= -1
+
+            x_axis.normalize()
+            y_axis.normalize()
            z_axis = x_axis.cross(y_axis)
            y_axis = z_axis.cross(x_axis)

@@ -34,7 +34,7 @@ from mathutils import Vector
 # TODO: move to some utils helpers/tool module
 def update_simple_openings(element, opening_width, opening_height):
    ifc_file = tool.Ifc.get()
-    fillings = tool.Ifc.get_all_element_occurences(element)
+    fillings = tool.Ifc.get_all_element_occurrences(element)

    voided_objs = set()
    has_replaced_opening_representation = False
@@ -158,11 +158,11 @@ def update_window_modifier_representation(context, obj):
    if tool.Ifc.get_schema() != "IFC2X3":
        element.PartitioningType = props.window_type

-    # occurences attributes
-    occurences = tool.Ifc.get_all_element_occurences(element)
-    for occurence in occurences:
-        occurence.OverallWidth = props.overall_width / si_conversion
-        occurence.OverallHeight = props.overall_height / si_conversion
+    # occurrences attributes
+    occurrences = tool.Ifc.get_all_element_occurrences(element)
+    for occurrence in occurrences:
+        occurrence.OverallWidth = props.overall_width / si_conversion
+        occurrence.OverallHeight = props.overall_height / si_conversion

    update_simple_openings(element, props.overall_width / si_conversion, props.overall_height / si_conversion)

@@ -51,6 +51,7 @@ class BimTool(WorkSpaceTool):
        ("bim.hotkey", {"type": "K", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_K")]}),
        ("bim.hotkey", {"type": "M", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_M")]}),
        ("bim.hotkey", {"type": "O", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_O")]}),
+        ("bim.hotkey", {"type": "L", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_L")]}),
        ("bim.hotkey", {"type": "Q", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_Q")]}),
        ("bim.hotkey", {"type": "R", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_R")]}),
        ("bim.hotkey", {"type": "T", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_T")]}),
@@ -77,9 +78,11 @@ class WallTool(BimTool):
    bl_description = "Create and edit walls"
    bl_icon = os.path.join(os.path.dirname(__file__), "ops.authoring.wall")
    bl_widget = None
+    ifc_element_type = "IfcWallType"

-    def draw_settings(context, layout, ws_tool):
-        BimToolUI.draw(context, layout, ifc_element_type="IfcWallType")
+    @classmethod
+    def draw_settings(cls, context, layout, ws_tool):
+        BimToolUI.draw(context, layout, ifc_element_type=cls.ifc_element_type)


 class SlabTool(BimTool):
@@ -90,9 +93,11 @@ class SlabTool(BimTool):
    bl_description = "Create and edit slabs"
    bl_icon = os.path.join(os.path.dirname(__file__), "ops.authoring.slab")
    bl_widget = None
+    ifc_element_type = "IfcSlabType"

-    def draw_settings(context, layout, ws_tool):
-        BimToolUI.draw(context, layout, ifc_element_type="IfcSlabType")
+    @classmethod
+    def draw_settings(cls, context, layout, ws_tool):
+        BimToolUI.draw(context, layout, ifc_element_type=cls.ifc_element_type)


 class DoorTool(BimTool):
@@ -103,9 +108,11 @@ class DoorTool(BimTool):
    bl_description = "Create and edit doors"
    bl_icon = os.path.join(os.path.dirname(__file__), "ops.authoring.door")
    bl_widget = None
+    ifc_element_type = "IfcDoorType"

-    def draw_settings(context, layout, ws_tool):
-        BimToolUI.draw(context, layout, ifc_element_type="IfcDoorType")
+    @classmethod
+    def draw_settings(cls, context, layout, ws_tool):
+        BimToolUI.draw(context, layout, ifc_element_type=cls.ifc_element_type)


 class WindowTool(BimTool):
@@ -116,9 +123,11 @@ class WindowTool(BimTool):
    bl_description = "Create and edit windows"
    bl_icon = os.path.join(os.path.dirname(__file__), "ops.authoring.window")
    bl_widget = None
+    ifc_element_type = "IfcWindowType"

-    def draw_settings(context, layout, ws_tool):
-        BimToolUI.draw(context, layout, ifc_element_type="IfcWindowType")
+    @classmethod
+    def draw_settings(cls, context, layout, ws_tool):
+        BimToolUI.draw(context, layout, ifc_element_type=cls.ifc_element_type)


 class ColumnTool(BimTool):
@@ -129,9 +138,11 @@ class ColumnTool(BimTool):
    bl_description = "Create and edit columns"
    bl_icon = os.path.join(os.path.dirname(__file__), "ops.authoring.column")
    bl_widget = None
+    ifc_element_type = "IfcColumnType"

-    def draw_settings(context, layout, ws_tool):
-        BimToolUI.draw(context, layout, ifc_element_type="IfcColumnType")
+    @classmethod
+    def draw_settings(cls, context, layout, ws_tool):
+        BimToolUI.draw(context, layout, ifc_element_type=cls.ifc_element_type)


 class BeamTool(BimTool):
@@ -142,9 +153,11 @@ class BeamTool(BimTool):
    bl_description = "Create and edit beams"
    bl_icon = os.path.join(os.path.dirname(__file__), "ops.authoring.beam")
    bl_widget = None
+    ifc_element_type = "IfcBeamType"

-    def draw_settings(context, layout, ws_tool):
-        BimToolUI.draw(context, layout, ifc_element_type="IfcBeamType")
+    @classmethod
+    def draw_settings(cls, context, layout, ws_tool):
+        BimToolUI.draw(context, layout, ifc_element_type=cls.ifc_element_type)


 class DuctTool(BimTool):
@@ -155,9 +168,11 @@ class DuctTool(BimTool):
    bl_description = "Create and edit ducks"  # No, not a typo.
    bl_icon = os.path.join(os.path.dirname(__file__), "ops.authoring.duct")
    bl_widget = None
+    ifc_element_type = "IfcDuctSegmentType"

-    def draw_settings(context, layout, ws_tool):
-        BimToolUI.draw(context, layout, ifc_element_type="IfcDuctSegmentType")
+    @classmethod
+    def draw_settings(cls, context, layout, ws_tool):
+        BimToolUI.draw(context, layout, ifc_element_type=cls.ifc_element_type)


 class PipeTool(BimTool):
@@ -168,9 +183,11 @@ class PipeTool(BimTool):
    bl_description = "Create and edit pipes"
    bl_icon = os.path.join(os.path.dirname(__file__), "ops.authoring.pipe")
    bl_widget = None
+    ifc_element_type = "IfcPipeSegmentType"

-    def draw_settings(context, layout, ws_tool):
-        BimToolUI.draw(context, layout, ifc_element_type="IfcPipeSegmentType")
+    @classmethod
+    def draw_settings(cls, context, layout, ws_tool):
+        BimToolUI.draw(context, layout, ifc_element_type=cls.ifc_element_type)


 def add_layout_hotkey_operator(layout, text, hotkey, description):
@@ -283,7 +300,12 @@ class BimToolUI:

            add_layout_hotkey_operator(cls.layout, "Extend", "S_E", "")
            add_layout_hotkey_operator(cls.layout, "Butt", "S_T", "")
-            add_layout_hotkey_operator(cls.layout, "Mitre", "S_Y", "")
+            add_layout_hotkey_operator(
+                cls.layout,
+                "Mitre",
+                "S_Y",
+                "Join two intersecting walls using a mitre joint.\nOther selected wall is connected to the active",
+            )

            add_layout_hotkey_operator(cls.layout, "Merge", "S_M", bpy.ops.bim.merge_wall.__doc__)
            add_layout_hotkey_operator(cls.layout, "Flip", "S_F", bpy.ops.bim.flip_wall.__doc__)
@@ -393,6 +415,13 @@ class BimToolUI:
            else:
                row.operator("bim.show_openings", icon="HIDE_OFF", text="")

+        if AuthoringData.data["active_class"] in ("IfcOpeningElement",):
+            if len(context.selected_objects) == 2:
+                row = cls.layout.row(align=True)
+                row.label(text="", icon="EVENT_SHIFT")
+                row.label(text="", icon="EVENT_L")
+                row.operator("bim.clone_opening", text="Clone Opening")
+
        cls.layout.row(align=True).label(text="Align")
        add_layout_hotkey_operator(cls.layout, "Align Exterior", "S_X", "")
        add_layout_hotkey_operator(cls.layout, "Align Centerline", "S_C", "")
@@ -544,7 +573,8 @@ class Hotkey(bpy.types.Operator, tool.Ifc.Operator):
        if not bpy.context.selected_objects:
            return
        if self.active_material_usage == "LAYER2":
-            bpy.ops.bim.align_wall(align_type="CENTERLINE")
+            if bpy.ops.bim.align_wall.poll():
+                bpy.ops.bim.align_wall(align_type="CENTERLINE")
        else:
            bpy.ops.bim.align_product(align_type="CENTERLINE")

@@ -726,6 +756,11 @@ class Hotkey(bpy.types.Operator, tool.Ifc.Operator):
            self.props.y = self.y
            self.props.z = self.z

+    def hotkey_S_L(self):
+        if AuthoringData.data["active_class"] in ("IfcOpeningElement",):
+            if len(bpy.context.selected_objects) == 2:
+                bpy.ops.bim.clone_opening()
+
    def hotkey_A_D(self):
        if not bpy.context.selected_objects:
            return
@@ -744,3 +779,7 @@ class Hotkey(bpy.types.Operator, tool.Ifc.Operator):
            bpy.ops.bim.edit_openings()
        else:
            bpy.ops.bim.show_openings()
+
+
+LIST_OF_TOOLS = [cls.bl_idname for cls in (BimTool.__subclasses__() + [BimTool])]
+TOOLS_TO_CLASSES_MAP = {cls.bl_idname: cls.ifc_element_type for cls in BimTool.__subclasses__()}
@@ -29,6 +29,7 @@ classes = (
    operator.EnableEditingArbitraryProfile,
    operator.EnableEditingProfile,
    operator.LoadProfiles,
+    operator.PurgeUnusedProfiles,
    operator.RemoveProfileDef,
    prop.Profile,
    prop.BIMProfileProperties,
@@ -36,6 +36,7 @@ class ProfileData:
    def load(cls):
        cls.data = {
            "total_profiles": cls.total_profiles(),
+            "active_profile_users": cls.active_profile_users(),
            "profile_classes": cls.profile_classes(),
            "is_arbitrary_profile": cls.is_arbitrary_profile(),
            "is_editing_arbitrary_profile": cls.is_editing_arbitrary_profile(),
@@ -46,6 +47,15 @@ class ProfileData:
    def total_profiles(cls):
        return len([p for p in tool.Ifc.get().by_type("IfcProfileDef") if p.ProfileName])

+    @classmethod
+    def active_profile_users(cls):
+        profiles_props = bpy.context.scene.BIMProfileProperties
+        if profiles_props.active_profile_index >= len(profiles_props.profiles):
+            return 0
+        profile_prop = profiles_props.profiles[profiles_props.active_profile_index]
+        profile_ifc = tool.Ifc.get().by_id(profile_prop.ifc_definition_id)
+        return tool.Ifc.get().get_total_inverses(profile_ifc)
+
    @classmethod
    def profile_classes(cls):
        classes = ["IfcArbitraryClosedProfileDef"]
@@ -72,4 +82,9 @@ class ProfileData:
    @classmethod
    def is_editing_arbitrary_profile(cls):
        obj = bpy.context.active_object
-        return obj and obj.data and hasattr(obj.data, "BIMMeshProperties") and obj.data.BIMMeshProperties.subshape_type == "PROFILE"
+        return (
+            obj
+            and obj.data
+            and hasattr(obj.data, "BIMMeshProperties")
+            and obj.data.BIMMeshProperties.subshape_type == "PROFILE"
+        )
@@ -21,6 +21,7 @@ import ifcopenshell.api
 import blenderbim.bim.helper
 import blenderbim.tool as tool
 import blenderbim.bim.module.model.profile as model_profile
+import blenderbim.core.profile as core
 from blenderbim.bim.module.model.decorator import ProfileDecorator
 from blenderbim.bim.module.profile.prop import generate_thumbnail_for_active_profile
 from blenderbim.bim.module.profile.data import refresh
@@ -213,3 +214,16 @@ class EditArbitraryProfile(bpy.types.Operator, tool.Ifc.Operator):
        props.active_arbitrary_profile_id = 0

        model_profile.DumbProfileRegenerator().regenerate_from_profile_def(profile)
+
+
+class PurgeUnusedProfiles(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.purge_unused_profiles"
+    bl_label = "Purge Unused Profiles"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def _execute(self, context):
+        props = context.scene.BIMProfileProperties
+        core.purge_unused_profiles(tool.Ifc, tool.Profile)
+        if props.is_editing:
+            refresh()
+            bpy.ops.bim.load_profiles()
@@ -49,10 +49,14 @@ class Profile(PropertyGroup):
    ifc_definition_id: IntProperty(name="IFC Definition ID")


+def update_active_profile_index(self, context):
+    ProfileData.data["active_profile_users"] = ProfileData.active_profile_users()
+
+
 class BIMProfileProperties(PropertyGroup):
    is_editing: BoolProperty(name="Is Editing")
    profiles: CollectionProperty(name="Profiles", type=Profile)
-    active_profile_index: IntProperty(name="Active Profile Index")
+    active_profile_index: IntProperty(name="Active Profile Index", update=update_active_profile_index)
    active_profile_id: IntProperty(name="Active Profile Id")
    active_arbitrary_profile_id: IntProperty(name="Active Arbitrary Profile Id")
    profile_attributes: CollectionProperty(name="Profile Attributes", type=Attribute)
@@ -79,17 +79,23 @@ class BIM_PT_profiles(Panel):
            self.props,
            "active_profile_index",
        )
-        if active_profile and active_profile.ifc_class in (
-            "IfcArbitraryClosedProfileDef",
-            "IfcArbitraryProfileDefWithVoids",
-        ):
-            if self.props.active_arbitrary_profile_id:
-                row = self.layout.row(align=True)
-                row.operator("bim.edit_arbitrary_profile", text="Save Arbitrary Profile", icon="CHECKMARK")
-                row.operator("bim.disable_editing_arbitrary_profile", text="", icon="CANCEL")
-            else:
-                row = self.layout.row()
-                row.operator("bim.enable_editing_arbitrary_profile", text="Edit Arbitrary Profile", icon="GREASEPENCIL")
+        if active_profile:
+            if active_profile.ifc_class in (
+                "IfcArbitraryClosedProfileDef",
+                "IfcArbitraryProfileDefWithVoids",
+            ):
+                if self.props.active_arbitrary_profile_id:
+                    row = self.layout.row(align=True)
+                    row.operator("bim.edit_arbitrary_profile", text="Save Arbitrary Profile", icon="CHECKMARK")
+                    row.operator("bim.disable_editing_arbitrary_profile", text="", icon="CANCEL")
+                else:
+                    row = self.layout.row()
+                    row.operator(
+                        "bim.enable_editing_arbitrary_profile", text="Edit Arbitrary Profile", icon="GREASEPENCIL"
+                    )
+
+            users_of_profile = ProfileData.data["active_profile_users"]
+            self.layout.label(icon="INFO", text=f"Profile has {users_of_profile} inverse relationship(s) in project")

        if self.props.active_profile_id:
            self.draw_editable_ui(context)
@@ -41,11 +41,13 @@ classes = (
    operator.SaveLibraryFile,
    operator.SelectLibraryFile,
    operator.ToggleFilterCategories,
+    operator.ToggleLinkSelectability,
    operator.ToggleLinkVisibility,
    operator.UnassignLibraryDeclaration,
    operator.UnlinkIfc,
    operator.UnloadLink,
    operator.UnloadProject,
+    operator.ReloadLink,
    prop.LibraryElement,
    prop.FilterCategory,
    prop.Link,
@@ -55,6 +57,7 @@ classes = (
    ui.BIM_PT_project,
    ui.BIM_PT_project_library,
    ui.BIM_PT_links,
+    ui.BIM_PT_purge,
    ui.BIM_UL_library,
    ui.BIM_UL_filter_categories,
    ui.BIM_UL_links,
@@ -429,7 +429,7 @@ class AppendLibraryElement(bpy.types.Operator):
        except:
            # TODO Remove this terrible code when I refactor this into the core
            pass
-        blenderbim.bim.handler.purge_module_data()
+        blenderbim.bim.handler.refresh_ui_data()
        return {"FINISHED"}

    def import_material_from_ifc(self, element, context):
@@ -850,7 +850,7 @@ class UnloadLink(bpy.types.Operator):
        for scene in bpy.data.scenes:
            if scene.library and scene.library.filepath == filepath:
                bpy.data.scenes.remove(scene)
-        link = context.scene.BIMProjectProperties.links.get(filepath)
+        link = context.scene.BIMProjectProperties.links.get(self.filepath)
        link.is_loaded = False
        return {"FINISHED"}

@@ -866,7 +866,7 @@ class LoadLink(bpy.types.Operator):
        filepath = self.filepath
        if not os.path.isabs(filepath):
            filepath = os.path.abspath(os.path.join(bpy.path.abspath("//"), filepath))
-        with bpy.data.libraries.load(self.filepath, link=True) as (data_from, data_to):
+        with bpy.data.libraries.load(filepath, link=True) as (data_from, data_to):
            data_to.scenes = data_from.scenes
        for scene in bpy.data.scenes:
            if not scene.library or scene.library.filepath != filepath:
@@ -875,11 +875,55 @@ class LoadLink(bpy.types.Operator):
                if "IfcProject" not in child.name:
                    continue
                bpy.data.scenes[0].collection.children.link(child)
-        link = context.scene.BIMProjectProperties.links.get(filepath)
+        link = context.scene.BIMProjectProperties.links.get(self.filepath)
        link.is_loaded = True
        return {"FINISHED"}


+class ReloadLink(bpy.types.Operator):
+    bl_idname = "bim.reload_link"
+    bl_label = "Reload Link"
+    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Reload the selected file"
+    filepath: bpy.props.StringProperty()
+
+    def execute(self, context):
+        def get_linked_ifcs():
+            selected_filename = os.path.basename(self.filepath)
+            return [
+                c.library
+                for c in bpy.data.collections
+                if "IfcProject" in c.name and c.library and os.path.basename(c.library.filepath) == selected_filename
+            ]
+        for library in get_linked_ifcs() or []:
+            library.reload()
+        return {"FINISHED"}
+
+
+class ToggleLinkSelectability(bpy.types.Operator):
+    bl_idname = "bim.toggle_link_selectability"
+    bl_label = "Toggle Link Selectability"
+    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Toggle selectability"
+    link: bpy.props.StringProperty()
+
+    def execute(self, context):
+        props = context.scene.BIMProjectProperties
+        link = props.links.get(self.link)
+        self.filepath = self.link
+        if not os.path.isabs(self.filepath):
+            self.filepath = os.path.abspath(os.path.join(bpy.path.abspath("//"), self.filepath))
+        for collection in self.get_linked_collections():
+            collection.hide_select = not collection.hide_select
+            link.is_selectable = not collection.hide_select
+        return {"FINISHED"}
+
+    def get_linked_collections(self):
+        return [
+            c for c in bpy.data.collections if "IfcProject" in c.name and c.library and c.library.filepath == self.filepath
+        ]
+
+
 class ToggleLinkVisibility(bpy.types.Operator):
    bl_idname = "bim.toggle_link_visibility"
    bl_label = "Toggle Link Visibility"
@@ -891,6 +935,9 @@ class ToggleLinkVisibility(bpy.types.Operator):
    def execute(self, context):
        props = context.scene.BIMProjectProperties
        link = props.links.get(self.link)
+        self.filepath = self.link
+        if not os.path.isabs(self.filepath):
+            self.filepath = os.path.abspath(os.path.join(bpy.path.abspath("//"), self.filepath))
        if self.mode == "WIREFRAME":
            self.toggle_wireframe(link)
        elif self.mode == "VISIBLE":
@@ -927,7 +974,7 @@ class ToggleLinkVisibility(bpy.types.Operator):

    def get_linked_collections(self):
        return [
-            c for c in bpy.data.collections if "IfcProject" in c.name and c.library and c.library.filepath == self.link
+            c for c in bpy.data.collections if "IfcProject" in c.name and c.library and c.library.filepath == self.filepath
        ]


@@ -1016,6 +1063,7 @@ class ExportIFC(bpy.types.Operator):
        settings.json_compact = self.json_compact

        ifc_exporter = export_ifc.IfcExporter(settings)
+        print("Starting export")
        settings.logger.info("Starting export")
        ifc_exporter.export()
        settings.logger.info("Export finished in {:.2f} seconds".format(time.time() - start))
@@ -1031,7 +1079,7 @@ class ExportIFC(bpy.types.Operator):
        save_blend_file = bool(bpy.data.is_saved and bpy.data.is_dirty and bpy.data.filepath)
        if save_blend_file:
            bpy.ops.wm.save_mainfile(filepath=bpy.data.filepath)
-        blenderbim.bim.handler.purge_module_data()
+        blenderbim.bim.handler.refresh_ui_data()
        self.report(
            {"INFO"},
            f'IFC Project "{os.path.basename(output_file)}" {"" if not save_blend_file else "And Current Blend File Are"} Saved',
@@ -93,6 +93,7 @@ class FilterCategory(PropertyGroup):
 class Link(PropertyGroup):
    name: StringProperty(name="Name")
    is_loaded: BoolProperty(name="Is Loaded", default=False)
+    is_selectable: BoolProperty(name="Is Selectable", default=True)
    is_wireframe: BoolProperty(name="Is Wireframe", default=False)
    is_hidden: BoolProperty(name="Is Hidden", default=False)

@@ -350,6 +350,13 @@ class BIM_UL_links(UIList):
            row = layout.row(align=True)
            if item.is_loaded:
                row.label(text=item.name)
+                op = row.operator(
+                    "bim.toggle_link_selectability",
+                    text="",
+                    icon="RESTRICT_SELECT_OFF" if item.is_selectable else "RESTRICT_SELECT_ON",
+                    emboss=False,
+                )
+                op.link = item.name
                op = row.operator(
                    "bim.toggle_link_visibility",
                    text="",
@@ -368,9 +375,26 @@ class BIM_UL_links(UIList):
                op.mode = "VISIBLE"
                op = row.operator("bim.unload_link", text="", icon="UNLINKED")
                op.filepath = item.name
+                op = row.operator("bim.reload_link", text="", icon="FILE_REFRESH")
+                op.filepath = item.name
            else:
                row.prop(item, "name", text="")
                op = row.operator("bim.load_link", text="", icon="LINKED")
                op.filepath = item.name
                op = row.operator("bim.unlink_ifc", text="", icon="X")
                op.filepath = item.name
+
+
+class BIM_PT_purge(Panel):
+    bl_label = "Purge Data"
+    bl_options = {"DEFAULT_CLOSED"}
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+    bl_parent_id = "BIM_PT_tab_quality_control"
+
+    def draw(self, context):
+        layout = self.layout
+        layout.operator("bim.purge_unused_profiles")
+        layout.operator("bim.purge_unused_types")
+        layout.operator("bim.purge_unused_representations")
@@ -91,7 +91,7 @@ class ObjectPsetsData(Data):
            return []
        psets = blenderbim.bim.schema.ifc.psetqto.get_applicable(element.is_a(), pset_only=True)
        psetnames = cls.format_pset_enum(psets)
-        assigned_names = ifcopenshell.util.element.get_psets(element, psets_only=True).keys()
+        assigned_names = ifcopenshell.util.element.get_psets(element, psets_only=True, should_inherit=False).keys()
        return [p for p in psetnames if p[0] not in assigned_names]

    @classmethod
@@ -398,6 +398,7 @@ class CalculateQuantity(bpy.types.Operator):
    bl_idname = "bim.calculate_quantity"
    bl_label = "Calculate Quantity"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Calculates the quantity with a defined formula for this exact entity and quantity"
    prop: bpy.props.StringProperty()

    def execute(self, context):
@@ -424,6 +425,10 @@ class GuessQuantity(bpy.types.Operator):
    bl_idname = "bim.guess_quantity"
    bl_label = "Guess Quantity"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = (
+        "Calculate the quantity by guessing the formula from the quantity name. "
+        "Less reliable than Calculate Quantity"
+    )
    prop: bpy.props.StringProperty()

    def execute(self, context):
@@ -450,7 +455,13 @@ class CopyPropertyToSelection(bpy.types.Operator, Operator):
        else:
            is_pset = context.active_object.PsetProperties.active_pset_type == "PSET"
        pset_name = context.active_object.PsetProperties.active_pset_name
-        prop_value = context.active_object.PsetProperties.properties.get(self.name).metadata.get_value()
+        prop = context.active_object.PsetProperties.properties.get(self.name)
+        if prop.value_type == "IfcPropertySingleValue":
+            prop_value = prop.metadata.get_value()
+        elif prop.value_type == "IfcPropertyEnumeratedValue":
+            value_name = prop.metadata.get_value_name()
+            prop_value = [e[value_name] for e in prop.enumerated_value.enumerated_values if e.is_selected]
+
        for obj in tool.Blender.get_selected_objects():
            core.copy_property_to_selection(
                tool.Ifc,
@@ -71,6 +71,9 @@ def draw_enumerated_property(prop, layout, copy_operator=None):
        grid = layout.column_flow(columns=3)
        for e in prop.enumerated_value.enumerated_values:
            grid.prop(e, "is_selected", text=str(e[value_name]))
+    if copy_operator:
+        op = layout.operator(f"{copy_operator}", text="", icon="COPYDOWN")
+        op.name = prop.metadata.name


 def get_active_pset_obj_name(context, obj_type):
@@ -370,6 +373,7 @@ class BIM_PT_task_qtos(Panel):
    bl_region_type = "WINDOW"
    bl_context = "scene"
    bl_parent_id = "BIM_PT_work_schedules"
+    bl_order = 2

    @classmethod
    def poll(cls, context):
@@ -510,6 +514,7 @@ class BIM_PT_work_schedule_psets(Panel):
    bl_region_type = "WINDOW"
    bl_context = "scene"
    bl_parent_id = "BIM_PT_work_schedules"
+    bl_order = 3

    @classmethod
    def poll(cls, context):
@@ -22,7 +22,7 @@ from . import ui, prop, operator
 classes = (
    operator.AddPropEnum,
    operator.AddPropTemplate,
-    operator.AddPsetFile,
+    operator.AddPsetTemplateFile,
    operator.AddPsetTemplate,
    operator.DeletePropEnum,
    operator.DisableEditingPropTemplate,
@@ -33,7 +33,7 @@ classes = (
    operator.EnableEditingPsetTemplate,
    operator.RemovePropTemplate,
    operator.RemovePsetTemplate,
-    operator.SavePsetTemplateFile,
+    operator.RemovePsetTemplateFile,
    prop.PsetTemplate,
    prop.EnumerationValues,
    prop.PropTemplate,
@@ -18,6 +18,7 @@

 import os
 import bpy
+import pathlib
 import ifcopenshell
 import blenderbim.tool as tool
 from blenderbim.bim.ifc import IfcStore
@@ -51,17 +52,23 @@ class PsetTemplatesData:

    @classmethod
    def pset_template_files(cls):
-        files = os.listdir(os.path.join(bpy.context.scene.BIMProperties.data_dir, "pset"))
-        return [(f.replace(".ifc", ""), f.replace(".ifc", ""), "") for f in files]
+        results = []
+        pset_dir = os.path.join(bpy.context.scene.BIMProperties.data_dir, "pset")
+        files = os.listdir(pset_dir)
+        for f in files:
+            results.append((os.path.join(pset_dir, f), os.path.splitext(os.path.basename(f))[0], "Global Pset Template"))
+
+        pset_dir = tool.Ifc.resolve_uri(bpy.context.scene.BIMProperties.pset_dir)
+        if os.path.isdir(pset_dir):
+            for path in pathlib.Path(pset_dir).glob("*.ifc"):
+                results.append((str(path), os.path.splitext(os.path.basename(str(path)))[0], "Project Pset Template"))
+
+        return sorted(results, key=lambda x: x[1])

    @classmethod
    def pset_templates(cls):
        if not IfcStore.pset_template_file:
-            IfcStore.pset_template_path = os.path.join(
-                bpy.context.scene.BIMProperties.data_dir,
-                "pset",
-                bpy.context.scene.BIMPsetTemplateProperties.pset_template_files + ".ifc",
-            )
+            IfcStore.pset_template_path = bpy.context.scene.BIMPsetTemplateProperties.pset_template_files
            IfcStore.pset_template_file = ifcopenshell.open(IfcStore.pset_template_path)
        return [(str(t.id()), t.Name, "") for t in IfcStore.pset_template_file.by_type("IfcPropertySetTemplate")]

@@ -44,9 +44,9 @@ class Operator:
        IfcStore.pset_template_file.redo()


-class AddPsetFile(bpy.types.Operator):
-    bl_idname = "bim.add_pset_file"
-    bl_label = "Add Pset File"
+class AddPsetTemplateFile(bpy.types.Operator):
+    bl_idname = "bim.add_pset_template_file"
+    bl_label = "Add Pset Template File"
    bl_options = {"REGISTER", "UNDO"}

    def invoke(self, context, event):
@@ -58,24 +58,15 @@ class AddPsetFile(bpy.types.Operator):

    def execute(self, context):
        template = ifcopenshell.file()
-        filepath = os.path.join(
-            context.scene.BIMProperties.data_dir,
-            "pset",
-            self.props.new_template_filename + ".ifc",
-        )
+        filepath = os.path.join(context.scene.BIMProperties.data_dir, "pset", self.props.new_template_filename + ".ifc")

-        template.create_entity(
-            "IFCPROPERTYSETTEMPLATE",
-            **{
-                "GlobalId": ifcopenshell.guid.new(),
-                "Name": "Name",
-                "Description": "Description",
-                "TemplateType": "PSET_TYPEDRIVENONLY",
-                "ApplicableEntity": "IfcTypeObject",
-            }
-        )
+        pset_template = ifcopenshell.api.run("pset_template.add_pset_template", template)
+        ifcopenshell.api.run("pset_template.add_prop_template", template, pset_template=pset_template)
        template.write(filepath)
        self.props.new_template_filename = ""
+        blenderbim.bim.handler.refresh_ui_data()
+        blenderbim.bim.schema.reload(tool.Ifc.get().schema)
+        context.scene.BIMPsetTemplateProperties.pset_template_files = filepath
        return {"FINISHED"}


@@ -86,7 +77,10 @@ class AddPsetTemplate(bpy.types.Operator, Operator):

    def _execute(self, context):
        template = ifcopenshell.api.run("pset_template.add_pset_template", IfcStore.pset_template_file)
+        ifcopenshell.api.run("pset_template.add_prop_template", IfcStore.pset_template_file, pset_template=template)
+        IfcStore.pset_template_file.write(IfcStore.pset_template_path)
        blenderbim.bim.handler.refresh_ui_data()
+        blenderbim.bim.schema.reload(tool.Ifc.get().schema)
        context.scene.BIMPsetTemplateProperties.pset_templates = str(template.id())


@@ -104,6 +98,9 @@ class RemovePsetTemplate(bpy.types.Operator, Operator):
            IfcStore.pset_template_file,
            **{"pset_template": IfcStore.pset_template_file.by_id(int(props.pset_templates))}
        )
+        IfcStore.pset_template_file.write(IfcStore.pset_template_path)
+        blenderbim.bim.handler.refresh_ui_data()
+        blenderbim.bim.schema.reload(tool.Ifc.get().schema)


 class EnableEditingPsetTemplate(bpy.types.Operator):
@@ -215,6 +212,9 @@ class EditPsetTemplate(bpy.types.Operator, Operator):
            }
        )
        bpy.ops.bim.disable_editing_pset_template()
+        IfcStore.pset_template_file.write(IfcStore.pset_template_path)
+        blenderbim.bim.handler.refresh_ui_data()
+        blenderbim.bim.schema.reload(tool.Ifc.get().schema)


 class SavePsetTemplateFile(bpy.types.Operator):
@@ -223,7 +223,21 @@ class SavePsetTemplateFile(bpy.types.Operator):

    def execute(self, context):
        IfcStore.pset_template_file.write(IfcStore.pset_template_path)
-        blenderbim.bim.handler.purge_module_data()
+        blenderbim.bim.handler.refresh_ui_data()
+        blenderbim.bim.schema.reload(tool.Ifc.get().schema)
+        return {"FINISHED"}
+
+
+class RemovePsetTemplateFile(bpy.types.Operator):
+    bl_idname = "bim.remove_pset_template_file"
+    bl_label = "Remove Pset Template File"
+
+    def execute(self, context):
+        try:
+            os.remove(IfcStore.pset_template_path)
+        except:
+            pass
+        blenderbim.bim.handler.refresh_ui_data()
        blenderbim.bim.schema.reload(tool.Ifc.get().schema)
        return {"FINISHED"}

@@ -239,9 +253,12 @@ class AddPropTemplate(bpy.types.Operator, Operator):
        ifcopenshell.api.run(
            "pset_template.add_prop_template",
            IfcStore.pset_template_file,
-            **{"pset_template": IfcStore.pset_template_file.by_id(pset_template_id)}
+            pset_template=IfcStore.pset_template_file.by_id(pset_template_id),
        )
        bpy.ops.bim.disable_editing_prop_template()
+        IfcStore.pset_template_file.write(IfcStore.pset_template_path)
+        blenderbim.bim.handler.refresh_ui_data()
+        blenderbim.bim.schema.reload(tool.Ifc.get().schema)


 class RemovePropTemplate(bpy.types.Operator, Operator):
@@ -257,6 +274,9 @@ class RemovePropTemplate(bpy.types.Operator, Operator):
            IfcStore.pset_template_file,
            **{"prop_template": IfcStore.pset_template_file.by_id(self.prop_template)}
        )
+        IfcStore.pset_template_file.write(IfcStore.pset_template_path)
+        blenderbim.bim.handler.refresh_ui_data()
+        blenderbim.bim.schema.reload(tool.Ifc.get().schema)


 class EditPropTemplate(bpy.types.Operator, Operator):
@@ -285,6 +305,9 @@ class EditPropTemplate(bpy.types.Operator, Operator):
            }
        )
        bpy.ops.bim.disable_editing_prop_template()
+        IfcStore.pset_template_file.write(IfcStore.pset_template_path)
+        blenderbim.bim.handler.refresh_ui_data()
+        blenderbim.bim.schema.reload(tool.Ifc.get().schema)

    # TODO -This will need to go into the
    # api code at some point - vulevukusej
@@ -38,6 +38,7 @@ from bpy.props import (

 def updatePsetTemplateFiles(self, context):
    IfcStore.pset_template_file = None
+    PsetTemplatesData.is_loaded = False
    PsetTemplatesData.data["pset_template_files"] = PsetTemplatesData.pset_template_files()
    PsetTemplatesData.data["pset_templates"] = PsetTemplatesData.pset_templates()
    PsetTemplatesData.data["prop_templates"] = PsetTemplatesData.prop_templates()
@@ -179,7 +180,7 @@ class BIMPsetTemplateProperties(PropertyGroup):
    pset_template_files: EnumProperty(
        items=getPsetTemplateFiles, name="Pset Template Files", update=updatePsetTemplateFiles
    )
-    pset_templates: EnumProperty(items=getPsetTemplates, name="Pset Template Files", update=updatePsetTemplates)
+    pset_templates: EnumProperty(items=getPsetTemplates, name="Pset Templates", update=updatePsetTemplates)
    active_pset_template_id: IntProperty(name="Active Pset Template Id")
    active_prop_template_id: IntProperty(name="Active Prop Template Id")
    active_pset_template: PointerProperty(type=PsetTemplate)
@@ -38,9 +38,9 @@ class BIM_PT_pset_template(Panel):
        self.props = context.scene.BIMPsetTemplateProperties

        row = self.layout.row(align=True)
-        prop_with_search(row, self.props, "pset_template_files", text="")
-        row.operator("bim.save_pset_template_file", text="", icon="EXPORT")
-        row.operator("bim.add_pset_file", icon="ADD", text="")
+        prop_with_search(row, self.props, "pset_template_files", text="", icon="FILE")
+        row.operator("bim.add_pset_template_file", icon="ADD", text="")
+        row.operator("bim.remove_pset_template_file", icon="X", text="")

        row = self.layout.row(align=True)

@@ -20,36 +20,41 @@ import bpy
 from . import ui, prop, operator

 classes = (
-    operator.DisableResourceEditingUI,
-    operator.DisableEditingResource,
-    operator.EnableEditingResource,
-    operator.LoadResources,
    operator.AddResource,
    operator.AddResourceQuantity,
-    operator.EditResource,
-    operator.RemoveResource,
-    operator.RemoveResourceQuantity,
-    operator.LoadResourceProperties,
-    operator.ExpandResource,
-    operator.ContractResource,
+    operator.AddProductivityData,
    operator.AssignResource,
-    operator.UnassignResource,
-    operator.EnableEditingResourceTime,
-    operator.EnableEditingResourceQuantity,
-    operator.EnableEditingResourceBaseQuantity,
-    operator.EnableEditingResourceCosts,
-    operator.EnableEditingResourceCostValueFormula,
-    operator.EnableEditingResourceCostValue,
-    operator.EditResourceTime,
-    operator.EditResourceQuantity,
+    operator.CalculateResourceWork,
+    operator.ConstrainResourceWork,
+    operator.ContractResource,
+    operator.DisableEditingResource,
+    operator.DisableEditingResourceCostValue,
+    operator.DisableEditingResourceQuantity,
+    operator.DisableEditingResourceTime,
+    operator.DisableResourceEditingUI,
+    operator.EditProductivityData,
+    operator.EditResource,
    operator.EditResourceCostValue,
    operator.EditResourceCostValueFormula,
-    operator.DisableEditingResourceTime,
-    operator.DisableEditingResourceQuantity,
-    operator.DisableEditingResourceCostValue,
-    operator.CalculateResourceWork,
+    operator.EditResourceQuantity,
+    operator.EditResourceTime,
+    operator.EnableEditingResource,
+    operator.EnableEditingResourceBaseQuantity,
+    operator.EnableEditingResourceCosts,
+    operator.EnableEditingResourceCostValue,
+    operator.CalculateResourceUsage,
+    operator.EnableEditingResourceCostValueFormula,
+    operator.EnableEditingResourceQuantity,
+    operator.EnableEditingResourceTime,
+    operator.ExpandResource,
+    operator.GoToResource,
    operator.ImportResources,
-    operator.EditProductivityData,
+    operator.LoadResourceProperties,
+    operator.LoadResources,
+    operator.RemoveResource,
+    operator.RemoveResourceQuantity,
+    operator.RemoveUsageConstraint,
+    operator.UnassignResource,
    prop.Resource,
    prop.BIMResourceProperties,
    prop.BIMResourceTreeProperties,
@@ -56,21 +56,75 @@ class ResourceData:
                "type": resource.is_a(),
                "BaseQuantity": base_quantity,
            }
+            results[resource.id()]["Benchmarks"] = cls.get_resource_benchmarks(resource)
            if resource.is_a() in ["IfcLaborResource", "IfcConstructionEquipmentResource"]:
                results[resource.id()]["Productivity"] = {}
+                results[resource.id()]["InheritedProductivity"] = {}
                productivity = cls.get_productivity(resource)
                if productivity:
                    results[resource.id()]["Productivity"] = {
+                        "id": productivity.get("id"),
                        "QuantityProduced": ifcopenshell.util.resource.get_quantity_produced(productivity),
                        "TimeConsumed": ifcopenshell.util.resource.get_unit_consumed(productivity),
                        "QuantityProducedName": ifcopenshell.util.resource.get_quantity_produced_name(productivity),
                    }
+                inherited_productivity = cls.get_parent_productivity(resource)
+                if inherited_productivity:
+                    results[resource.id()]["InheritedProductivity"] = {
+                        "QuantityProduced": ifcopenshell.util.resource.get_quantity_produced(inherited_productivity),
+                        "TimeConsumed": ifcopenshell.util.resource.get_unit_consumed(inherited_productivity),
+                        "QuantityProducedName": ifcopenshell.util.resource.get_quantity_produced_name(
+                            inherited_productivity
+                        ),
+                    }
+                if resource.Usage:
+                    results[resource.id()]["ScheduleWork"] = (
+                        ifcopenshell.util.date.readable_ifc_duration(resource.Usage.ScheduleWork)
+                        if resource.Usage.ScheduleWork
+                        else None
+                    )
+                    results[resource.id()]["ScheduleUsage"] = (
+                        resource.Usage.ScheduleUsage if resource.Usage.ScheduleUsage else None
+                    )
+                if resource.IsNestedBy:
+                    results[resource.id()]["DerivedScheduleWork"] = cls.sum_person_hours(resource)
        return results

+    @classmethod
+    def sum_person_hours(cls, resource):
+        sum = 0
+        nested_resources = ifcopenshell.util.resource.get_nested_resources(resource)
+        for nested_resource in nested_resources or []:
+            if not nested_resource.Usage or not nested_resource.Usage.ScheduleWork:
+                continue
+            duration = ifcopenshell.util.date.ifc2datetime(nested_resource.Usage.ScheduleWork)
+            sum += duration.total_seconds() / 3600
+        return round(float(sum), 2) if sum else 0
+
+    @classmethod
+    def get_resource_benchmarks(cls, resource):
+        constraints = []
+        for constraint in ifcopenshell.util.constraint.get_constraints(resource) or []:
+            metrics = []
+            for metric in ifcopenshell.util.constraint.get_metrics(constraint) or []:
+                metrics.append(
+                    {
+                        "reference": ifcopenshell.util.constraint.get_metric_reference(metric),
+                        "Benchmark": metric.Benchmark,
+                        "ConstraintGrade": metric.ConstraintGrade,
+                    }
+                )
+            constraints.append({"ObjectiveQualifier": constraint.ObjectiveQualifier, "metrics": metrics})
+        return constraints
+
    @classmethod
    def get_productivity(cls, resource):
        return ifcopenshell.util.resource.get_productivity(resource, should_inherit=False)

+    @classmethod
+    def get_parent_productivity(cls, resource):
+        return ifcopenshell.util.resource.get_parent_productivity(resource)
+
    @classmethod
    def cost_values(cls):
        results = []
@@ -18,6 +18,7 @@

 import bpy
 from bpy_extras.io_utils import ImportHelper
+from blenderbim.bim.module.resource.ui import draw_productivity_ui
 import blenderbim.core.resource as core
 import blenderbim.tool as tool

@@ -198,6 +199,13 @@ class CalculateResourceWork(bpy.types.Operator, tool.Ifc.Operator):
    bl_options = {"REGISTER", "UNDO"}
    resource: bpy.props.IntProperty()

+    @classmethod
+    def poll(cls, context):
+        active_resource = tool.Resource.get_highlighted_resource()
+        if active_resource:
+            if tool.Resource.get_productivity(active_resource, should_inherit=True):
+                return True
+
    def _execute(self, context):
        core.calculate_resource_work(tool.Ifc, tool.Resource, resource=tool.Ifc.get().by_id(self.resource))

@@ -334,7 +342,7 @@ class EditResourceQuantity(bpy.types.Operator, tool.Ifc.Operator):

 class ImportResources(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
    bl_idname = "import_resources.bim"
-    bl_label = "Import P6"
+    bl_label = "Import Resources"
    bl_options = {"REGISTER", "UNDO"}
    filename_ext = ".csv"
    filter_glob: bpy.props.StringProperty(default="*.csv", options={"HIDDEN"})
@@ -348,6 +356,16 @@ class ImportResources(bpy.types.Operator, tool.Ifc.Operator, ImportHelper):
        core.import_resources(tool.Resource, file_path=self.filepath)


+class AddProductivityData(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.add_productivity_data"
+    bl_description = "Apply"
+    bl_label = "Add Productivity"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def _execute(self, context):
+        tool.Ifc.run("pset.add_pset", product=tool.Resource.get_highlighted_resource(), name="EPset_Productivity")
+
+
 class EditProductivityData(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.edit_productivity_data"
    bl_description = "Apply"
@@ -356,3 +374,67 @@ class EditProductivityData(bpy.types.Operator, tool.Ifc.Operator):

    def _execute(self, context):
        core.edit_productivity_pset(tool.Ifc, tool.Resource)
+
+    def draw(self, context):
+        draw_productivity_ui(self, context)
+
+    def invoke(self, context, event):
+        return context.window_manager.invoke_props_dialog(self, width=600)
+
+
+class ConstrainResourceWork(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.add_usage_constraint"
+    bl_label = "Constrain Resource Work"
+    bl_options = {"REGISTER", "UNDO"}
+    resource: bpy.props.IntProperty()
+    attribute: bpy.props.StringProperty()
+
+    def _execute(self, context):
+        core.add_usage_constraint(
+            tool.Ifc, tool.Resource, resource=tool.Ifc.get().by_id(self.resource), reference_path=self.attribute
+        )
+
+
+class RemoveUsageConstraint(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.remove_usage_constraint"
+    bl_label = "Remove Usage Constraint"
+    bl_options = {"REGISTER", "UNDO"}
+    resource: bpy.props.IntProperty()
+    attribute: bpy.props.StringProperty()
+
+    def _execute(self, context):
+        core.remove_usage_constraint(
+            tool.Ifc, tool.Resource, resource=tool.Ifc.get().by_id(self.resource), reference_path=self.attribute
+        )
+
+
+class GoToResource(bpy.types.Operator):
+    bl_idname = "bim.go_to_resource"
+    bl_label = "Go To Resource"
+    bl_description = "Selects the resource in the Resource Panel"
+    bl_options = {"REGISTER", "UNDO"}
+    resource: bpy.props.IntProperty()
+
+    def execute(self, context):
+        core.go_to_resource(tool.Resource, resource=tool.Ifc.get().by_id(self.resource))
+        return {"FINISHED"}
+
+
+class CalculateResourceUsage(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.calculate_resource_usage"
+    bl_label = "Calculate Resource Usage"
+    bl_options = {"REGISTER", "UNDO"}
+
+    @classmethod
+    def poll(cls, context):
+        active_resource = tool.Resource.get_highlighted_resource()
+        if active_resource:
+            if active_resource.Usage and active_resource.Usage.ScheduleWork:
+                task = tool.Resource.get_task_assignments(active_resource)
+                if task and tool.Sequence.has_duration(task):
+                    return True
+
+        return False
+
+    def _execute(self, context):
+        core.calculate_resource_usage(tool.Ifc, tool.Resource, resource=tool.Ifc.get().by_id(tool.Resource.get_highlighted_resource()))
@@ -1,5 +1,5 @@
 # BlenderBIM Add-on - OpenBIM Blender Add-on
-# Copyright (C) 2020, 2021 Dion Moult <dion@thinkmoult.com>
+# Copyright (C) 2021, 2022, 2023 Dion Moult, Yassine Oualid <dion@thinkmoult.com>
 #
 # This file is part of BlenderBIM Add-on.
 #
@@ -22,6 +22,8 @@ import ifcopenshell.util.resource
 from blenderbim.bim.ifc import IfcStore
 import blenderbim.tool as tool
 import blenderbim.bim.module.pset.data
+import blenderbim.bim.module.resource.data
+import blenderbim.bim.module.sequence.data
 from blenderbim.bim.prop import StrProperty, Attribute
 from bpy.types import PropertyGroup
 from bpy.props import (
@@ -56,6 +58,8 @@ def updateResourceName(self, context):
    if props.active_resource_id == self.ifc_definition_id:
        attribute = props.resource_attributes.get("Name")
        attribute.string_value = self.name
+    blenderbim.bim.module.resource.data.refresh()
+    tool.Sequence.refresh_task_resources()


 def get_quantity_types(self, context):
@@ -72,7 +76,7 @@ def get_quantity_types(self, context):

 def update_active_resource_index(self, context):
    blenderbim.bim.module.pset.data.refresh()
-    if self.should_show_productivity:
+    if self.should_show_resource_tools:
        tool.Resource.load_productivity_data()


@@ -80,18 +84,20 @@ def updateResourceUsage(self, context):
    props = context.scene.BIMResourceProperties
    if not props.is_resource_update_enabled:
        return
-
-    if self.schedule_usage == "":
+    if not self.schedule_usage:
        return
    resource = tool.Ifc.get().by_id(self.ifc_definition_id)
-    if not resource.Usage:
-        tool.Ifc.run(
-            "resource.add_resource_time",
-            resource=resource,
-        )
-    resource.Usage.ScheduleUsage = self.schedule_usage
-    blenderbim.bim.module.pset.data.refresh()
+    if resource.Usage and resource.Usage.ScheduleUsage == self.schedule_usage:
+        return
+    tool.Resource.run_edit_resource_time(resource, attributes={
+        "ScheduleUsage": self.schedule_usage
+    })
+    tool.Sequence.load_task_properties()
    tool.Resource.load_resource_properties()
+    tool.Sequence.refresh_task_resources()
+    blenderbim.bim.module.resource.data.refresh()
+    blenderbim.bim.module.sequence.data.refresh()
+    blenderbim.bim.module.pset.data.refresh()


 class ISODuration(PropertyGroup):
@@ -144,7 +150,7 @@ class BIMResourceProperties(PropertyGroup):
    quantity_types: EnumProperty(items=get_quantity_types, name="Quantity Types")
    is_editing_quantity: BoolProperty(name="Is Editing Quantity")
    quantity_attributes: CollectionProperty(name="Quantity Attributes", type=Attribute)
-    should_show_productivity: BoolProperty(name="Edit Productivity", update=update_active_resource_index)
+    should_show_resource_tools: BoolProperty(name="Edit Productivity", update=update_active_resource_index)


 class BIMResourceProductivity(PropertyGroup):
@@ -20,20 +20,21 @@ import blenderbim.bim.helper
 from bpy.types import Panel, UIList
 from blenderbim.bim.ifc import IfcStore
 from blenderbim.bim.module.resource.data import ResourceData
-import blenderbim.tool as tool


 class BIM_PT_resources(Panel):
    bl_label = "Resources"
    bl_idname = "BIM_PT_resources"
-    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
+    bl_parent_id = "BIM_PT_tab_resources"
+    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):
        self.props = context.scene.BIMResourceProperties
@@ -64,58 +65,124 @@ class BIM_PT_resources(Panel):
            self.props,
            "active_resource_index",
        )
-        row = self.layout.row(align=True)
-        row.alignment = "RIGHT"
-        row.prop(self.props, "should_show_productivity", icon="RECOVER_LAST")
-        if self.props.should_show_productivity:
-            self.draw_productivity_ui(context)
-        if self.props.active_resource_id and self.props.editing_resource_type == "ATTRIBUTES":
-            self.draw_editable_resource_attributes_ui()
-        elif self.props.active_resource_id and self.props.editing_resource_type == "QUANTITY":
-            self.draw_editable_resource_quantity_ui()
-        elif self.props.active_resource_id and self.props.editing_resource_type == "COSTS":
-            self.draw_editable_resource_costs_ui()
-        elif self.props.active_resource_id and self.props.editing_resource_type == "USAGE":
-            self.draw_editable_resource_time_attributes_ui()
+
+        if self.props.active_resource_id:
+            if self.props.editing_resource_type == "ATTRIBUTES":
+                self.draw_editable_resource_attributes_ui()
+            elif self.props.active_resource_id and self.props.editing_resource_type == "QUANTITY":
+                self.draw_editable_resource_quantity_ui()
+            elif self.props.active_resource_id and self.props.editing_resource_type == "COSTS":
+                self.draw_editable_resource_costs_ui()
+            elif self.props.active_resource_id and self.props.editing_resource_type == "USAGE":
+                self.draw_editable_resource_time_attributes_ui()
+        self.draw_productivity_ui(context)

    def draw_productivity_ui(self, context):
-        total_resources = len(self.tprops.resources)
-        if not total_resources or self.props.active_resource_index >= total_resources:
-            return
-
-        ifc_definition_id = self.tprops.resources[self.props.active_resource_index].ifc_definition_id
-        resource = ResourceData.data["resources"][ifc_definition_id]
-
-        if not resource["type"] in ["IfcConstructionEquipmentResource", "IfcLaborResource"]:
-            row = self.layout.row(align=True)
-            row.label(text="Resource type cannot have productivity data", icon="ERROR")
-            return
-
-        self.productivity_props = context.scene.BIMResourceProductivity
-
-        if resource["Productivity"]:
-            produtivitiy_rate_message = "Current Rate: {}/{}".format(
-                resource["Productivity"]["QuantityProduced"], resource["Productivity"]["TimeConsumed"]
-            )
-            row = self.layout.row()
-            row.alignment = "LEFT"
-            row.label(text=produtivitiy_rate_message, icon="ARMATURE_DATA")
-        else:
-            row = self.layout.row(align=True)
-            row.alignment = "LEFT"
-            produtivitiy_rate_message = "No productivity data found"
-            row.label(text=produtivitiy_rate_message, icon="ARMATURE_DATA")
-
        row = self.layout.row(align=True)
        row.alignment = "RIGHT"
-        row.prop(self.productivity_props, "quantity_produced", text="Quantity Produced")
-        row.prop(self.productivity_props, "quantity_produced_name", text="Quantity Name")
-        row = self.layout.row()
-        row.alignment = "RIGHT"
-        self.draw_duration_property(self.productivity_props.quantity_consumed, row)
-        row = self.layout.row()
-        row.alignment = "RIGHT"
-        row.operator("bim.edit_productivity_data", text="Apply", icon="CHECKMARK")
+        row.prop(self.props, "should_show_resource_tools", text="Resource Tools", icon="RECOVER_LAST")
+        if self.props.should_show_resource_tools:
+            total_resources = len(self.tprops.resources)
+            if not total_resources or self.props.active_resource_index >= total_resources:
+                return
+
+            ifc_definition_id = self.tprops.resources[self.props.active_resource_index].ifc_definition_id
+            resource = ResourceData.data["resources"][ifc_definition_id]
+
+            if not resource["type"] in ["IfcConstructionEquipmentResource", "IfcLaborResource"]:
+                row = self.layout.row(align=True)
+                row.label(text="Resource type cannot have productivity data", icon="ERROR")
+            else:
+                is_usage_locked = False
+                is_work_locked = False
+                for constraint in resource["Benchmarks"] or []:
+                    for metric in constraint["metrics"] or []:
+                        if (
+                            metric["ConstraintGrade"] == "HARD"
+                            and metric["reference"]
+                            and metric["reference"] == "Usage.ScheduleUsage"
+                        ):
+                            is_usage_locked = True
+                        elif (
+                            metric["ConstraintGrade"] == "HARD"
+                            and metric["reference"]
+                            and metric["reference"] == "Usage.ScheduleWork"
+                        ):
+                            is_work_locked = True
+                grid = self.layout.grid_flow(columns=3, even_columns=False, even_rows=False, align=False)
+
+                col1 = grid.column(align=True)
+                col2 = grid.column(align=False)
+                col3 = grid.column(align=True)
+                col1.ui_units_x = 1
+                col2.ui_units_x = 1
+                col3.ui_units_x = 2
+
+                row1_col1 = col1.row()
+                row1_col1.label(text="Schedule Work")
+                row1col2 = col2.row()
+                schedule_work = resource.get("ScheduleWork", None)
+                derived_schedule_work = resource.get("DerivedScheduleWork", None)
+                row1col2.label(
+                    text="{}".format(schedule_work) if schedule_work else "{} h*".format(derived_schedule_work),
+                    icon="TIME",
+                )
+
+                row1col3 = col3.row()
+                row1col3.operator("bim.calculate_resource_work", text="", icon="TEMP").resource = ifc_definition_id
+                op = row1col3.operator(
+                    "bim.add_usage_constraint" if not is_work_locked else "bim.remove_usage_constraint",
+                    text="",
+                    icon="LOCKED" if is_work_locked else "UNLOCKED",
+                )
+                op.resource = ifc_definition_id
+                op.attribute = "Usage.ScheduleWork"
+                row2_col1 = col1.row()
+                row2_col1.label(text="Schedule Usage")
+                row2col2 = col2.row()
+                row2col2.prop(self.tprops.resources[self.props.active_resource_index], "schedule_usage", text="")
+                row2col3 = col3.row()
+                row2col3.operator("bim.calculate_resource_usage", text="", icon="TEMP")
+                op = row2col3.operator(
+                    "bim.add_usage_constraint" if not is_usage_locked else "bim.remove_usage_constraint",
+                    text="",
+                    icon="LOCKED" if is_usage_locked else "UNLOCKED",
+                )
+                op.resource = ifc_definition_id
+                op.attribute = "Usage.ScheduleUsage"
+
+                productivity = resource["Productivity"]
+                parent_productivity = resource["InheritedProductivity"]
+                row = self.layout.row()
+                if productivity:
+                    produtivitiy_rate_message = "Current Productivity Rate: {} {} / {}".format(
+                        productivity["QuantityProduced"],
+                        productivity["QuantityProducedName"],
+                        productivity["TimeConsumed"],
+                    )
+                    row.alignment = "LEFT"
+                    row.label(text=produtivitiy_rate_message, icon="ARMATURE_DATA")
+                    row.operator("bim.edit_productivity_data", text="", icon="GREASEPENCIL")
+                    op = row.operator("bim.remove_pset", text="", icon="X")
+                    op.pset_id = productivity["id"]
+                    op.obj_type = "Resource"
+                    op.obj = ""
+
+                elif parent_productivity:
+                    produtivitiy_rate_message = "Inherited Productivity Rate: {} {} / {}*".format(
+                        parent_productivity["QuantityProduced"],
+                        parent_productivity["QuantityProducedName"],
+                        parent_productivity["TimeConsumed"],
+                    )
+                    row.alignment = "LEFT"
+                    row.label(text="{}".format(produtivitiy_rate_message), icon="ARMATURE_DATA")
+                    row.operator("bim.add_productivity_data", text="", icon="ADD")
+                else:
+                    row = self.layout.row(align=True)
+                    row.alignment = "LEFT"
+                    produtivitiy_rate_message = "No productivity data found"
+                    row.label(text="{}".format(produtivitiy_rate_message), icon="ARMATURE_DATA")
+                    row.operator("bim.add_productivity_data", text="", icon="ADD")

    def draw_resource_operators(self):
        row = self.layout.row(align=True)
@@ -153,9 +220,6 @@ class BIM_PT_resources(Panel):

        if not self.props.active_resource_id:
            if resource["type"] in ["IfcLaborResource", "IfcConstructionEquipmentResource"]:
-                if resource["Productivity"]:
-                    op = row.operator("bim.calculate_resource_work", text="", icon="TEMP")
-                    op.resource = ifc_definition_id
                row.operator("bim.enable_editing_resource_time", text="", icon="TIME").resource = ifc_definition_id
            op = row.operator("bim.enable_editing_resource_base_quantity", text="", icon="PROPERTIES")
            op.resource = ifc_definition_id
@@ -163,6 +227,12 @@ class BIM_PT_resources(Panel):
            op.resource = ifc_definition_id
            row.operator("bim.enable_editing_resource", text="", icon="GREASEPENCIL").resource = ifc_definition_id
            row.operator("bim.remove_resource", text="", icon="X").resource = ifc_definition_id
+        else:
+            if self.props.editing_resource_type == "ATTRIBUTES":
+                row.operator("bim.edit_resource", text="", icon="CHECKMARK")
+            elif self.props.editing_resource_type == "USAGE":
+                row.operator("bim.edit_resource_time", text="", icon="CHECKMARK")
+            row.operator("bim.disable_editing_resource", text="", icon="CANCEL")

    def draw_editable_resource_attributes_ui(self):
        blenderbim.bim.helper.draw_attributes(self.props.resource_attributes, self.layout)
@@ -250,7 +320,6 @@ class BIM_PT_resources(Panel):
    def draw_duration_property(self, duration_props, layout):
        for duration_prop in duration_props:
            if duration_prop.name == "BaseQuantityConsumed":
-                layout.label(text=duration_prop.name)
                layout.prop(duration_prop, "years", text="Y")
                layout.prop(duration_prop, "months", text="M")
                layout.prop(duration_prop, "days", text="D")
@@ -287,7 +356,7 @@ class BIM_UL_resources(UIList):
            else:
                row.label(text="", icon="DOT")
            row.prop(item, "name", emboss=False, text="", icon=icon_map[resource["type"]])
-            row.prop(item, "schedule_usage", text="", emboss=False)
+            row.prop(item, "schedule_usage", text="", emboss=False) if item.schedule_usage else None
            if context.active_object and not props.active_resource_id:
                row = layout.row(align=True)
                if item.ifc_definition_id in ResourceData.data["active_resource_ids"]:
@@ -303,3 +372,29 @@ class BIM_UL_resources(UIList):
                elif props.editing_resource_type == "USAGE":
                    row.operator("bim.edit_resource_time", text="", icon="CHECKMARK")
                row.operator("bim.disable_editing_resource", text="", icon="CANCEL")
+
+
+def draw_productivity_ui(self, context):
+    def draw_duration_property(duration_props, layout):
+        for duration_prop in duration_props:
+            if duration_prop.name == "BaseQuantityConsumed":
+                layout.prop(duration_prop, "years", text="Y")
+                layout.prop(duration_prop, "months", text="M")
+                layout.prop(duration_prop, "days", text="D")
+                layout.prop(duration_prop, "hours", text="H")
+                layout.prop(duration_prop, "minutes", text="Min")
+                layout.prop(duration_prop, "seconds", text="S")
+
+    productivity_props = context.scene.BIMResourceProductivity
+    grid = self.layout.grid_flow(columns=2, even_columns=False, even_rows=False, align=False)
+    col1 = grid.column(align=False)
+    col2 = grid.column(align=False)
+    row1_col1 = col1.row()
+    row1_col1.label(text="Quantity")
+    row1_col2 = col2.row()
+    row1_col2.prop(productivity_props, "quantity_produced", text="")
+    row1_col2.prop(productivity_props, "quantity_produced_name", text="")
+    row2_col1 = col1.row()
+    row2_col1.label(text="Time")
+    row2_col2 = col2.row()
+    draw_duration_property(productivity_props.quantity_consumed, row2_col2)
@@ -49,8 +49,8 @@ class IfcClassData:
    @classmethod
    def ifc_products(cls):
        products = [
-            "IfcElement",
            "IfcElementType",
+            "IfcElement",
            "IfcSpatialElement",
            "IfcSpatialElementType",
            "IfcGroup",
@@ -62,8 +62,8 @@ class IfcClassData:
        version = tool.Ifc.get_schema()
        if version == "IFC2X3":
            products = [
-                "IfcElement",
                "IfcElementType",
+                "IfcElement",
                "IfcSpatialStructureElement",
                "IfcGroup",
                "IfcStructuralItem",
@@ -212,4 +212,4 @@ class CopyClass(bpy.types.Operator, Operator):
        objects = [bpy.data.objects.get(self.obj)] if self.obj else context.selected_objects
        for obj in objects:
            core.copy_class(tool.Ifc, tool.Collector, tool.Geometry, tool.Root, obj=obj)
-        blenderbim.bim.handler.purge_module_data()
+        blenderbim.bim.handler.refresh_ui_data()
@@ -33,10 +33,6 @@ from bpy.props import (
 )


-def purge():
-    pass
-
-
 def get_ifc_predefined_types(self, context):
    if not IfcClassData.is_loaded:
        IfcClassData.load()
@@ -26,6 +26,7 @@ classes = (
    operator.AddFilterGroup,
    operator.AddToIfcGroup,
    operator.ColourByProperty,
+    operator.EditFilterQuery,
    operator.FilterModelElements,
    operator.IfcSelector,
    operator.LoadColourscheme,
@@ -39,6 +40,7 @@ classes = (
    operator.SaveSearch,
    operator.SaveSelectorQuery,
    operator.Search,
+    operator.SelectFilterElements,
    operator.SelectGlobalId,
    operator.SelectIfcClass,
    operator.SelectSimilar,
@@ -40,12 +40,14 @@ class SearchData:

    @classmethod
    def saved_searches(cls):
+        if not tool.Ifc.get():
+            return []
        groups = tool.Ifc.get().by_type("IfcGroup")
        results = []
        for group in groups:
            try:
                data = json.loads(group.Description)
-                if isinstance(data, dict) and data.get("type", None) == "BBIM_Search":
+                if isinstance(data, dict) and data.get("type", None) == "BBIM_Search" and data.get("query", None):
                    results.append(group)
            except:
                pass
@@ -102,7 +104,7 @@ class SelectSimilarData:
        psets = ifcopenshell.util.element.get_psets(element, psets_only=True)
        for pset, properties in psets.items():
            if pset.endswith("Common"):
-                keys.extend([f'r".*Common"."{name}"' for name in properties.keys() if name != "id"])
+                keys.extend([f'/.*Common/."{name}"' for name in properties.keys() if name != "id"])
            else:
                keys.extend([f"{pset}.{name}" for name in properties.keys() if name != "id"])
        return [(k, k, "") for k in keys]
@@ -61,9 +61,14 @@ colour_list = [
 class AddFilterGroup(Operator):
    bl_idname = "bim.add_filter_group"
    bl_label = "Add Filter Group"
+    module: StringProperty()

    def execute(self, context):
-        context.scene.BIMSearchProperties.filter_groups.add()
+        if self.module == "search":
+            props = context.scene.BIMSearchProperties
+        elif self.module == "csv":
+            props = context.scene.CsvProperties
+        props.filter_groups.add()
        return {"FINISHED"}


@@ -71,9 +76,13 @@ class RemoveFilterGroup(Operator):
    bl_idname = "bim.remove_filter_group"
    bl_label = "Remove Filter Group"
    index: IntProperty()
+    module: StringProperty()

    def execute(self, context):
-        props = context.scene.BIMSearchProperties
+        if self.module == "search":
+            props = context.scene.BIMSearchProperties
+        elif self.module == "csv":
+            props = context.scene.CsvProperties
        props.filter_groups.remove(self.index)
        return {"FINISHED"}

@@ -83,9 +92,13 @@ class RemoveFilter(Operator):
    bl_label = "Remove Filter Group"
    group_index: IntProperty()
    index: IntProperty()
+    module: StringProperty()

    def execute(self, context):
-        props = context.scene.BIMSearchProperties
+        if self.module == "search":
+            props = context.scene.BIMSearchProperties
+        elif self.module == "csv":
+            props = context.scene.CsvProperties
        props.filter_groups[self.group_index].filters.remove(self.index)
        return {"FINISHED"}

@@ -95,13 +108,87 @@ class AddFilter(Operator):
    bl_label = "Add Filter"
    index: IntProperty()
    type: StringProperty()
+    module: StringProperty()

    def execute(self, context):
-        new = context.scene.BIMSearchProperties.filter_groups[self.index].filters.add()
+        if self.module == "search":
+            props = context.scene.BIMSearchProperties
+        elif self.module == "csv":
+            props = context.scene.CsvProperties
+        new = props.filter_groups[self.index].filters.add()
        new.type = self.type
        return {"FINISHED"}


+class SelectFilterElements(bpy.types.Operator):
+    bl_idname = "bim.select_filter_elements"
+    bl_label = "Select Filter Elements"
+    bl_options = {"REGISTER", "UNDO"}
+    group_index: IntProperty()
+    index: IntProperty()
+    module: StringProperty()
+
+    def execute(self, context):
+        if self.module == "search":
+            props = context.scene.BIMSearchProperties
+        elif self.module == "csv":
+            props = context.scene.CsvProperties
+        global_ids = []
+        for obj in context.selected_objects:
+            element = tool.Ifc.get_entity(obj)
+            if element:
+                global_id = getattr(element, "GlobalId", None)
+                if global_id:
+                    global_ids.append(global_id)
+        if len(global_ids) > 50:
+            # Too much to store in a string property
+            name = "globalid-filter-" + ifcopenshell.guid.new()
+            text_data = bpy.data.texts.new(name)
+            text_data.from_string(",".join(global_ids))
+            props.filter_groups[self.group_index].filters[self.index].value = f"bpy.data.texts['{name}']"
+        else:
+            props.filter_groups[self.group_index].filters[self.index].value = ",".join(global_ids)
+        return {"FINISHED"}
+
+
+class EditFilterQuery(Operator, tool.Ifc.Operator):
+    bl_idname = "bim.edit_filter_query"
+    bl_label = "Edit Filter Query"
+    bl_description = "Edit the underlying filter query for advanced users"
+    bl_options = {"REGISTER", "UNDO"}
+    query: StringProperty(name="Query")
+    module: StringProperty()
+
+    def _execute(self, context):
+        if self.query == self.old_query:
+            return
+
+        if self.module == "search":
+            props = context.scene.BIMSearchProperties
+        elif self.module == "csv":
+            props = context.scene.CsvProperties
+
+        try:
+            tool.Search.import_filter_query(self.query, props.filter_groups)
+        except:
+            return
+
+    def draw(self, context):
+        row = self.layout.row()
+        row.prop(self, "query", text="")
+
+    def invoke(self, context, event):
+        if self.module == "search":
+            props = context.scene.BIMSearchProperties
+        elif self.module == "csv":
+            props = context.scene.CsvProperties
+
+        self.query = tool.Search.export_filter_query(props.filter_groups)
+        self.old_query = self.query
+
+        return context.window_manager.invoke_props_dialog(self)
+
+
 class Search(Operator):
    bl_idname = "bim.search"
    bl_label = "Search"
@@ -127,21 +214,36 @@ class SaveSearch(Operator, tool.Ifc.Operator):
    bl_description = "Save search filter to an IFC group"
    bl_options = {"REGISTER", "UNDO"}
    name: StringProperty(name="Name")
+    module: StringProperty()

    def _execute(self, context):
        if not self.name:
            return

-        query = tool.Search.export_filter_query(context.scene.BIMSearchProperties.filter_groups)
-        results = ifcopenshell.util.selector.filter_elements(tool.Ifc.get(), query)
+        if self.module == "search":
+            props = context.scene.BIMSearchProperties
+        elif self.module == "csv":
+            props = context.scene.CsvProperties
+
+        try:
+            query = tool.Search.export_filter_query(props.filter_groups)
+            results = ifcopenshell.util.selector.filter_elements(tool.Ifc.get(), query)
+        except:
+            return

        description = json.dumps({"type": "BBIM_Search", "query": query})
        group = [g for g in tool.Ifc.get().by_type("IfcGroup") if g.Name == self.name]
        if group:
            group = group[0]
+            group.Description = description
        else:
            group = ifcopenshell.api.run("group.add_group", tool.Ifc.get(), Name=self.name, Description=description)
-        ifcopenshell.api.run("group.assign_group", tool.Ifc.get(), products=results, group=group)
+        if results:
+            ifcopenshell.api.run("group.assign_group", tool.Ifc.get(), products=list(results), group=group)
+
+    def draw(self, context):
+        row = self.layout.row()
+        row.prop(self, "name")

    def invoke(self, context, event):
        return context.window_manager.invoke_props_dialog(self)
@@ -152,11 +254,15 @@ class LoadSearch(Operator, tool.Ifc.Operator):
    bl_label = "Load Search"
    bl_description = "Load search filter from an IFC group"
    bl_options = {"REGISTER", "UNDO"}
+    module: StringProperty()

    def _execute(self, context):
-        props = context.scene.BIMSearchProperties
-        group = tool.Ifc.get().by_id(int(props.saved_searches))
-        query = tool.Search.import_filter_query(group, context.scene.BIMSearchProperties.filter_groups)
+        if self.module == "search":
+            props = context.scene.BIMSearchProperties
+        elif self.module == "csv":
+            props = context.scene.CsvProperties
+        group = tool.Ifc.get().by_id(int(context.scene.BIMSearchProperties.saved_searches))
+        query = tool.Search.import_filter_query(tool.Search.get_group_query(group), props.filter_groups)

    def draw(self, context):
        props = context.scene.BIMSearchProperties
@@ -242,14 +348,15 @@ class SaveColourscheme(Operator, tool.Ifc.Operator):
        query = props.colourscheme_query

        group = [g for g in tool.Ifc.get().by_type("IfcGroup") if g.Name == self.name]
+        coulour_scheme = {cs.name: cs.colour[0:3] for cs in props.colourscheme}
        if group:
            group = group[0]
            description = json.loads(group.Description)
-            description["colourscheme"] = {cs.name: cs.colour[0:3] for cs in props.colourscheme}
+            description["colourscheme"] = coulour_scheme
            description["colourscheme_query"] = query
            group.Description = json.dumps(description)
        else:
-            description = json.dumps({"type": "BBIM_Search", "colourscheme": query})
+            description = json.dumps({"type": "BBIM_Search", "colourscheme": coulour_scheme,"colourscheme_query": query})
            group = ifcopenshell.api.run("group.add_group", tool.Ifc.get(), Name=self.name, Description=description)

    def invoke(self, context, event):
@@ -264,7 +371,7 @@ class LoadColourscheme(Operator, tool.Ifc.Operator):

    def _execute(self, context):
        props = context.scene.BIMSearchProperties
-        group = tool.Ifc.get().by_id(int(props.saved_searches))
+        group = tool.Ifc.get().by_id(int(props.saved_colourschemes))
        description = json.loads(group.Description)
        props.colourscheme_query = description.get("colourscheme_query")
        props.colourscheme.clear()
@@ -128,7 +128,8 @@ class BIMSearchProperties(PropertyGroup):
            ("classification", "Classification", "", "OUTLINER", 4),
            ("location", "Location", "", "PACKAGE", 5),
            ("type", "Type", "", "FILE_VOLUME", 6),
-            ("instance", "GlobalId", "", "GRIP", 7),
+            ("query", "Query", "", "POINTCLOUD_DATA", 7),
+            ("instance", "GlobalId", "", "GRIP", 8),
        ],
    )
    saved_searches: EnumProperty(items=get_saved_searches, name="Saved Searches")
@@ -17,6 +17,7 @@
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.

 import bpy
+import blenderbim.bim.helper
 from bpy.types import Panel
 from blenderbim.bim.module.search.data import SearchData, ColourByPropertyData, SelectSimilarData

@@ -35,59 +36,7 @@ class BIM_PT_search(Panel):

        props = context.scene.BIMSearchProperties

-        row = self.layout.row(align=True)
-        row.label(text=f"{len(SearchData.data['saved_searches'])} Saved Searches")
-
-        if SearchData.data["saved_searches"]:
-            row.operator("bim.load_search", text="", icon="IMPORT")
-        row.operator("bim.save_search", text="", icon="EXPORT")
-
-        row = self.layout.row(align=True)
-        row.operator("bim.add_filter_group", text="Add Search Group", icon="ADD")
-
-        for i, filter_group in enumerate(props.filter_groups):
-            box = self.layout.box()
-
-            row = box.row(align=True)
-            row.prop(props, "facet", text="")
-            op = row.operator("bim.add_filter", text="Add Filter", icon="ADD")
-            op.type = props.facet
-            op.index = i
-
-            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, "name", text="", icon="PACKAGE")
-                elif ifc_filter.type == "instance":
-                    row = box.row(align=True)
-                    row.prop(ifc_filter, "value", text="", icon="GRIP")
-                op = row.operator("bim.remove_filter", text="", icon="X")
-                op.group_index = i
-                op.index = j
-
-            row = box.row()
-            row.operator("bim.remove_filter_group", icon="X").index = i
+        blenderbim.bim.helper.draw_filter(self.layout, props, SearchData, "search")

        if len(props.filter_groups):
            row = self.layout.row(align=True)
@@ -20,12 +20,11 @@ import bpy
 from . import ui, prop, operator

 classes = (
-    operator.ExpandAllTasks,
-    operator.ContractAllTasks,
+    operator.AddAnimationCamera,
    operator.AddSummaryTask,
    operator.AddTask,
-    operator.AddTaskColumn,
    operator.AddTaskBars,
+    operator.AddTaskColumn,
    operator.AddTimePeriod,
    operator.AddWorkCalendar,
    operator.AddWorkPlan,
@@ -42,9 +41,12 @@ classes = (
    operator.BlenderBIM_DatePickerSetDate,
    operator.BlenderBIM_RedrawDatePicker,
    operator.CalculateTaskDuration,
+    operator.ClearPreviousAnimation,
+    operator.ContractAllTasks,
    operator.ContractTask,
-    operator.CopyTaskAttribute,
    operator.CopyTask,
+    operator.CopyTaskAttribute,
+    operator.CreateBaseline,
    operator.DisableEditingSequence,
    operator.DisableEditingTask,
    operator.DisableEditingTaskTime,
@@ -67,27 +69,29 @@ classes = (
    operator.EnableEditingTaskCalendar,
    operator.EnableEditingTaskSequence,
    operator.EnableEditingTaskTime,
-    operator.EnableEditingWorkScheduleTasks,
    operator.EnableEditingWorkCalendar,
    operator.EnableEditingWorkCalendarTimes,
    operator.EnableEditingWorkPlan,
    operator.EnableEditingWorkPlanSchedules,
    operator.EnableEditingWorkSchedule,
+    operator.EnableEditingWorkScheduleTasks,
    operator.EnableEditingWorkTime,
+    operator.ExpandAllTasks,
    operator.ExpandTask,
    operator.ExportMSP,
    operator.ExportP6,
    operator.GenerateGanttChart,
    operator.GuessDateRange,
-    operator.ImportMSP,
+    operator.GoToTask,
    operator.ImportCSV,
+    operator.ImportMSP,
    operator.ImportP6,
    operator.ImportP6XER,
    operator.ImportPP,
-    operator.LoadTaskInputs,
-    operator.LoadTaskOutputs,
+    operator.LoadAnimationColorScheme,
+    operator.LoadDefaultAnimationColors,
+    operator.LoadProductTasks,
    operator.LoadTaskProperties,
-    operator.LoadTaskResources,
    operator.RecalculateSchedule,
    operator.RemoveTask,
    operator.RemoveTaskCalendar,
@@ -98,10 +102,11 @@ classes = (
    operator.RemoveWorkSchedule,
    operator.RemoveWorkTime,
    operator.ReorderTask,
-    operator.SelectTaskRelatedProducts,
+    operator.SaveAnimationColorScheme,
    operator.SelectTaskRelatedInputs,
-    operator.SelectWorkScheduleProducts,
+    operator.SelectTaskRelatedProducts,
    operator.SelectUnassignedWorkScheduleProducts,
+    operator.SelectWorkScheduleProducts,
    operator.SetTaskSortColumn,
    operator.SetupDefaultTaskColumns,
    operator.UnassignLagTime,
@@ -113,17 +118,18 @@ classes = (
    operator.UnassignWorkSchedule,
    operator.VisualiseWorkScheduleDate,
    operator.VisualiseWorkScheduleDateRange,
-    operator.LoadTaskAnimationColors,
-    operator.DisableEditingTaskAnimationColors,
-    operator.LoadProductTasks,
-    operator.HighlightTask,
-    operator.CreateBaseline,
+    operator.EnableStatusFilters,
+    operator.DisableStatusFilters,
+    operator.ActivateStatusFilters,
+    operator.SelectStatusFilter,
    prop.WorkPlan,
    prop.BIMWorkPlanProperties,
    prop.Task,
    prop.TaskResource,
    prop.TaskProduct,
    prop.ISODuration,
+    prop.IFCStatus,
+    prop.BIMStatusProperties,
    prop.BIMWorkScheduleProperties,
    prop.BIMTaskTreeProperties,
    prop.BIMTaskTypeColor,
@@ -133,17 +139,19 @@ classes = (
    prop.BIMWorkCalendarProperties,
    prop.DatePickerProperties,
    prop.BIMDateTextProperties,
+    ui.BIM_PT_status,
    ui.BIM_PT_work_plans,
    ui.BIM_PT_work_schedules,
    ui.BIM_PT_work_calendars,
+    ui.BIM_PT_animation_tools,
    ui.BIM_PT_task_icom,
+    ui.BIM_PT_animation_Color_Scheme,
    ui.BIM_UL_task_columns,
    ui.BIM_UL_task_inputs,
    ui.BIM_UL_task_resources,
    ui.BIM_UL_task_outputs,
    ui.BIM_UL_tasks,
    ui.BIM_PT_4D_Tools,
-    ui.BIM_PT_Task_Bar_Creator,
    ui.BIM_UL_animation_colors,
    ui.BIM_UL_product_input_tasks,
    ui.BIM_UL_product_output_tasks,
@@ -164,6 +172,7 @@ def menu_func_import(self, context):


 def register():
+    bpy.types.Scene.BIMStatusProperties = bpy.props.PointerProperty(type=prop.BIMStatusProperties)
    bpy.types.Scene.BIMWorkPlanProperties = bpy.props.PointerProperty(type=prop.BIMWorkPlanProperties)
    bpy.types.Scene.BIMWorkScheduleProperties = bpy.props.PointerProperty(type=prop.BIMWorkScheduleProperties)
    bpy.types.Scene.BIMTaskTreeProperties = bpy.props.PointerProperty(type=prop.BIMTaskTreeProperties)
@@ -176,6 +185,7 @@ def register():


 def unregister():
+    del bpy.types.Scene.BIMStatusProperties
    del bpy.types.Scene.BIMWorkPlanProperties
    del bpy.types.Scene.BIMWorkScheduleProperties
    del bpy.types.Scene.BIMTaskTreeProperties
--- a/Show More
+++ b/Show More