Clean up IfcFM's Basic preset to be more true to IFC rather than follow naming schemes from stuff like COBie

You can now select and bulk process multiple models using IfcFM in Blender.
New IfcPatch recipe to fix Revit bug with occurrence based classifications
2026-08-09 09:21:46 +00:00 · 2023-10-03 21:21:28 +11:00 · 2023-10-03 21:21:28 +11:00 · 2023-10-03 21:21:28 +11:00 · 2023-10-03 21:21:28 +11:00 · 2023-10-03 10:50:56 +05:00
719 changed files with 1070690 additions and 33992 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
@@ -39,7 +39,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        pyver: [py37, py39, py310]
+        pyver: [py39, py310]
        config:
          - {
            name: "Windows Build",
@@ -12,7 +12,7 @@ on:
  push:
    paths:
      - '.github/workflows/ci-ifctester-pypi.yml'
-
+  workflow_dispatch:

 env:
  major: 0
@@ -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: |
@@ -92,3 +92,12 @@ src/blenderbim/layouts
 # ifcopenshell swig and compiled files
 src/ifcopenshell-python/ifcopenshell/_ifcopenshell_wrapper.so
 src/ifcopenshell-python/ifcopenshell/ifcopenshell_wrapper.py
+
+# apple
+.DS_Store
+
+# clangd cache
+.cache
+
+# Brickschema
+src/blenderbim/blenderbim/bim/schema/Brick.ttl
@@ -1,12 +1,13 @@

 IfcOpenShell 
 ============
+
 <p align="center">
-  <img src="https://github.com/IfcOpenShell/IfcOpenShell/assets/79010126/9e540403-c79f-446a-88c6-7c1ebc6ba864">
+<img src="https://github.com/IfcOpenShell/IfcOpenShell/assets/88302/34901387-e2dd-4a0c-8e38-9ffc32a66cde">
 </p>

 IfcOpenShell is an open source ([LGPL]) software library for working with Industry Foundation Classes ([IFC]). Complete
-parsing support is provided for [IFC2x3 TC1], [IFC4 Add2 TC1], IFC4x1, IFC4x3, and IFC4x3. Extensive geometric support
+parsing support is provided for [IFC2x3 TC1], [IFC4 Add2 TC1], IFC4x1, IFC4x2, and IFC4x3. Extensive geometric support
 is implemented for the IFC releases [IFC2x3 TC1] and [IFC4 Add2 TC1]. Extending with support for arbitrary IFC schemas
 is possible at compile-time when using C++ and at run-time when using Python.

@@ -54,7 +55,6 @@ Those marked with an asterisk are part of IfcOpenShell.
 | ifcblender                | Historic Blender IFC import add-on                                    | LGPL-3.0-or-later\* |
 | ifccityjson               | Convert CityJSON to IFC                                               | LGPL-3.0-or-later   |
 | ifcclash                  | Clash detection library and CLI app                                   | LGPL-3.0-or-later   |
-| ifccobie                  | Extract IFC data for COBie handover requirements                      | LGPL-3.0-or-later   |
 | ifcconvert                | CLI app to convert IFC to many other formats                          | LGPL-3.0-or-later\* |
 | ifccsv                    | Library and CLI app to export and import schedules from IFC           | LGPL-3.0-or-later   |
 | ifcdiff                   | Compare changes between IFC models                                    | LGPL-3.0-or-later   |
@@ -0,0 +1,40 @@
+# Dockerfile for Running AWS Lambda Function with Python and IfcOpenShell
+
+# Base image: Python 3.9 from AWS's public container registry
+FROM public.ecr.aws/docker/library/python:3.9 AS build
+
+# Set the location of your Lambda function code
+ARG FUNCTION_DIR="/var/task"
+
+# Install necessary packages
+RUN apt-get -y update && apt-get -y install unzip curl
+
+# Install AWS Lambda runtime interface client
+RUN pip install --target ${FUNCTION_DIR} awslambdaric
+
+# Set the IfcOpenShell build version (check available builds at: https://blenderbim.org/docs-python/ifcopenshell-python/installation.html)
+ARG IFC_OPENSHELL_BUILD="39-v0.7.0-476ab50"
+
+# Download and extract IfcOpenShell
+RUN curl https://s3.amazonaws.com/ifcopenshell-builds/ifcopenshell-python-${IFC_OPENSHELL_BUILD}-linux64.zip -O && \
+    unzip ifcopenshell-python-${IFC_OPENSHELL_BUILD}-linux64.zip && \
+    mv ifcopenshell ${FUNCTION_DIR} && \
+    rm ifcopenshell-python-${IFC_OPENSHELL_BUILD}-linux64.zip
+
+# Copy the requirements file and install dependencies
+COPY requirements.txt .
+RUN pip install -r requirements.txt
+
+# Copy the Lambda function code
+COPY ./example_handler ${FUNCTION_DIR}/example_handler
+
+# Set the working directory
+WORKDIR ${FUNCTION_DIR}
+
+# Set the entrypoint for the Lambda function
+ENTRYPOINT [ "/usr/local/bin/python", "-m", "awslambdaric" ]
+
+# Set the Python import path to the Lambda function handler
+# This path is relative to the root of the Lambda function code (FUNCTION_DIR)
+# Lambda invocation will look for this path
+CMD ["example_handler.extract_wall_psets_handler"]
@@ -0,0 +1,27 @@
+import ifcopenshell
+import ifcopenshell.util.element
+import boto3
+
+s3 = boto3.client('s3')
+
+def extract_wall_psets_handler(event, context):
+    print("Hello from lambda")
+    print("Event: {}".format(event))
+    print("Context: {}".format(context))
+
+    filename = event['body']['filename']
+    
+    s3.download_file('my_ifc_files_bucket', filename, f'/tmp/{filename}')
+    ifc_file = ifcopenshell.open(f'/tmp/{filename}')
+    walls = ifc_file.by_type('IfcWall')
+    
+    psets = []
+    for wall in walls:
+        wall_data = ifcopenshell.util.element.get_psets(wall)
+        wall_data['id'] = wall.GlobalId
+        psets.append(wall_data)
+
+    return {
+        'statusCode': 200,
+        'body': psets
+    }
@@ -0,0 +1 @@
+boto3
@@ -13,68 +13,77 @@ def request_repo_info(url: str):
    return resp


+def get_choco_package_info() -> str:
+    resp = request_repo_info(URL_CHOCO_PACKAGE)
+    html_txt = str(resp.read())
+    return html_txt
+
+
+def get_latest_blender_version() -> list:
+    html_txt = get_choco_package_info()
+    return re.findall(RE_BLENDER_VERSION_MIN_MAJ_PAT, html_txt)
+
+
+URL_IFCOS_RELEASES = "https://github.com/IfcOpenShell/IfcOpenShell/releases"
+URL_CHOCO_PACKAGE  = "https://community.chocolatey.org/packages/blender"
+URL_BLENDER_CMAKE  = "https://raw.githubusercontent.com/blender/blender/{}/build_files/cmake/Modules/FindPythonLibsUnix.cmake"
+RE_BLENDER_VERSION_MIN_MAJ        = r"Latest Version.+<span>Blender (\d+\.\d+)\..+</span>"
+RE_BLENDER_VERSION_MIN_MAJ_PAT    = r"Latest Version.+<span>Blender (\d+\.\d+\.\d+)</span>"
+RE_BLENDER_PYTHON_VERSION_MAJ_MIN = r"SET\(_PYTHON_VERSION_SUPPORTED (\d+\.\d+)\)"
+
+
 if sys.argv[1] == "--do_choco_release?":
    now = datetime.datetime.now()
    blenderbim_date = (now - datetime.timedelta(days=1)).strftime("%y%m%d")
-    url = "https://github.com/IfcOpenShell/IfcOpenShell/releases"
-    resp = request_repo_info(url)
+    resp = request_repo_info(URL_IFCOS_RELEASES)
    text = str(resp.read())
    if blenderbim_date in text:
        print("do_choco_release", end="")


 elif sys.argv[1] == "--latest_blender_release_maj_min_pat?":
-    re_blender_version_min_maj_pat = r"Latest Version.+<span>Blender (\d+\.\d+\.\d+)</span>"
-    url = "https://community.chocolatey.org/packages/blender"
-    resp = request_repo_info(url)
-    html_txt = str(resp.read())
-    found = re.findall(re_blender_version_min_maj_pat, html_txt)
-    if found:
-        print(found[0], end="")
+    latest_blender_version = get_latest_blender_version()
+    if latest_blender_version:
+        print(latest_blender_version[0], end="")
+    else:
+        print("[ERROR] could not determine blender_version_min_maj_pat")
+        quit(1)


 elif sys.argv[1] == "--latest_blender_release_maj_min?":
-    re_blender_version_min_maj = r"Latest Version.+<span>Blender (\d+\.\d+)\..+</span>"
-    url = "https://community.chocolatey.org/packages/blender"
-    resp = request_repo_info(url)
-    html_txt = str(resp.read())
-    found = re.findall(re_blender_version_min_maj, html_txt)
-    if found:
-        print(found[0], end="")
+    html_txt = get_choco_package_info()
+    blender_version_min_maj = re.findall(RE_BLENDER_VERSION_MIN_MAJ, html_txt)
+    if blender_version_min_maj:
+        print(blender_version_min_maj[0], end="")
+    else:
+        print("[ERROR] could not determine blender_version_min_maj")
+        quit(1)


 elif sys.argv[1] == "--latest_blender_python_version_maj_min?":
-    # get latest blender version first
-    re_blender_version_min_maj_pat = r"Latest Version.+<span>Blender (\d+\.\d+\.\d+)</span>"
-    url = "https://community.chocolatey.org/packages/blender"
-    resp = request_repo_info(url)
-    html_txt = str(resp.read())
-    found = re.findall(re_blender_version_min_maj_pat, html_txt)
-    if found:
-        latest_blender_version_tag = f"v{found[0]}"
-        re_blender_python_version_maj_min = r"SET\(PYTHON_VERSION (\d+.\d+) "
-        url = f"https://raw.githubusercontent.com/blender/blender/{latest_blender_version_tag}/build_files/cmake/Modules/FindPythonLibsUnix.cmake"
-        resp = request_repo_info(url)
+    latest_blender_version = get_latest_blender_version()
+    if latest_blender_version:
+        latest_blender_version_tag = f"v{latest_blender_version[0]}"
+        resp = request_repo_info(URL_BLENDER_CMAKE.format(latest_blender_version_tag))
        html_txt = str(resp.read())
-        found = re.findall(re_blender_python_version_maj_min, html_txt)
+        found = re.findall(RE_BLENDER_PYTHON_VERSION_MAJ_MIN, html_txt)
        if found:
            print(found[0], end="")
+        else:
+            print("[ERROR] could not determine blender_python_version_maj_min")
+            quit(1)


 elif sys.argv[1] == "--pyver?":
-    # get latest blender version first
-    re_blender_version_min_maj_pat = r"Latest Version.+<span>Blender (\d+\.\d+\.\d+)</span>"
-    url = "https://community.chocolatey.org/packages/blender"
-    resp = request_repo_info(url)
-    html_txt = str(resp.read())
-    found = re.findall(re_blender_version_min_maj_pat, html_txt)
-    if found:
-        latest_blender_version_tag = f"v{found[0]}"
-        re_blender_python_version_maj_min = r"SET\(PYTHON_VERSION (\d+.\d+) "
-        url = f"https://raw.githubusercontent.com/blender/blender/{latest_blender_version_tag}/build_files/cmake/Modules/FindPythonLibsUnix.cmake"
-        resp = request_repo_info(url)
+    latest_blender_version = get_latest_blender_version()
+    if latest_blender_version:
+        latest_blender_version_tag = f"v{latest_blender_version[0]}"
+        resp = request_repo_info(URL_BLENDER_CMAKE.format(latest_blender_version_tag))
        html_txt = str(resp.read())
-        found = re.findall(re_blender_python_version_maj_min, html_txt)
+        found = re.findall(RE_BLENDER_PYTHON_VERSION_MAJ_MIN, html_txt)
        if found:
            print(f"py{found[0].replace('.', '')}", end="")
+        else:
+            print("[ERROR] could not determine pyver")
+            quit(1)

@@ -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[@]} \
@@ -41,4 +42,4 @@ cmake -G Ninja \

 ninja

-ninja install -j 2
+ninja install -j 1
@@ -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]
@@ -0,0 +1,20 @@
+# This CITATION.cff file was generated with cffinit.
+# Visit https://bit.ly/cffinit to generate yours today!
+
+cff-version: 1.2.0
+title: bcf
+message: >-
+  If you use this software, please cite it using the
+  metadata from this file.
+type: software
+authors:
+  - name: "IfcOpenShell contributors"
+repository-code: >-
+  https://github.com/IfcOpenShell/IfcOpenShell/tree/v0.7.0/src/bcf
+abstract: >-
+  Library to read and write BCF-XML and query OpenCDE
+  BCF-API modules
+keywords:
+  - BCF
+  - IFC
+license: LGPL-3.0-or-later
@@ -1,3 +1,9 @@
+VERSION:=`date '+%y%m%d'`
+SED:=sed -i
+ifeq ($(UNAME_S),Darwin)
+SED:=sed -i '' -e
+endif
+
 .PHONY: ci
 ci:
 	tox
@@ -12,6 +18,13 @@ models:
 	cd src && xsdata generate -p bcf.v2.model --unnest-classes --kw-only --slots -ds Google bcf/v2/xsd
 	cd src && xsdata generate -p bcf.v3.model --unnest-classes --kw-only --slots -ds Google bcf/v3/xsd

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

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

 [tool.pylint.format]
 expected-line-ending-format = "LF"
-max-line-length = 120
+max-line-length = 120
@@ -275,6 +275,7 @@ class TopicHandler:
        """
        new_viewpoint = VisualizationInfoHandler.create_new(element, self._xml_handler)
        self.add_visinfo_handler(new_viewpoint)
+        return new_viewpoint

    def add_viewpoint_from_point_and_guids(self, position: NDArray[np.float_], *guids: str) -> None:
        """Add a viewpoint pointing at an XYZ point in space
@@ -287,6 +288,7 @@ class TopicHandler:
            position, *guids, xml_handler=self._xml_handler
        )
        self.add_visinfo_handler(vi_handler)
+        return vi_handler

    def add_visinfo_handler(self, new_viewpoint: VisualizationInfoHandler) -> None:
        self.viewpoints[new_viewpoint.guid + ".bcfv"] = new_viewpoint
@@ -0,0 +1,26 @@
+# This CITATION.cff file was generated with cffinit.
+# Visit https://bit.ly/cffinit to generate yours today!
+
+cff-version: 1.2.0
+title: BlenderBIM Add-on
+message: >-
+  If you use this software, please cite it using the
+  metadata from this file.
+type: software
+authors:
+  - name: "IfcOpenShell contributors"
+repository-code: >-
+  https://github.com/IfcOpenShell/IfcOpenShell/tree/v0.7.0/src/blenderbim
+url: 'https://blenderbim.org/'
+repository-artifact: 'https://blenderbim.org/download.html'
+abstract: >-
+  Add-on to Blender providing a graphical native IFC
+  authoring platform
+keywords:
+  - IFC
+  - Blender
+  - NativeIFC
+license: GPL-3.0-or-later
+commit: 1fb6dac
+version: v0.0.230506
+date-released: '2023-05-23'
@@ -36,139 +36,118 @@ endif
 endif

 VERSION:=`date '+%y%m%d'`
-PYVERSION:=py37
+LAST_COMMIT_HASH:=$(shell git rev-parse HEAD)
+PYVERSION:=py310
+PYPI_IMP:=cp

-ifeq ($(PYVERSION), py37)
-PYLIBDIR:=python3.7
-PYNUMBER:=37
-endif
 ifeq ($(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 ($(PLATFORM), linux)
-ifeq ($(PYVERSION), py37)
-HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/1.7.5/download/linux-64/hpp-fcl-1.7.5-py37h5f1835d_0.tar.bz2
-EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/2.6.5/download/linux-64/eigenpy-2.6.5-py37h95e2c48_0.tar.bz2
-BOOST_URL:=https://anaconda.org/conda-forge/boost/1.74.0/download/linux-64/boost-1.74.0-py37h0379df6_3.tar.bz2
-LXML_URL:=https://files.pythonhosted.org/packages/30/c0/d0526314971fc661b083ab135747dc68446a3022686da8c16d25fcf6ef07/lxml-4.6.3-cp37-cp37m-manylinux2014_x86_64.whl
-SHAPELY_URL:=https://files.pythonhosted.org/packages/1d/a4/931d0780f31f3ea8c4f9ef6464a2825137c5241e6707a5fb03bef760a7eb/shapely-2.0.1-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
-PILLOW_URL:=https://files.pythonhosted.org/packages/ed/d5/c2e84e1e36ab8ebea033921d5886a056c77e18bab5ab1051fcc22de2e8a2/Pillow-9.2.0-cp37-cp37m-manylinux_2_28_x86_64.whl
-endif
+PYPI_PLATFORM:=--platform manylinux_2_17_x86_64
 ifeq ($(PYVERSION), py39)
-HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/1.7.5/download/linux-64/hpp-fcl-1.7.5-py39hbcdfc36_0.tar.bz2
-EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/2.6.5/download/linux-64/eigenpy-2.6.5-py39h5aed9d1_0.tar.bz2
-BOOST_URL:=https://anaconda.org/conda-forge/boost/1.74.0/download/linux-64/boost-1.74.0-py39h5472131_3.tar.bz2
+HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/2.3.4/download/linux-64/hpp-fcl-2.3.4-py39h40a70d0_0.conda
+EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/3.1.0/download/linux-64/eigenpy-3.1.0-py39hdfdd6bb_0.conda
+BOOST_URL:=https://anaconda.org/conda-forge/boost/1.78.0/download/linux-64/boost-1.78.0-py39h7c9e3ff_4.tar.bz2
 LXML_URL:=https://files.pythonhosted.org/packages/19/d9/a69c6aff5673554df48120565a14a50eaa41d29ae03b02faa0b023666318/lxml-4.6.3-cp39-cp39-manylinux2014_x86_64.whl
 SHAPELY_URL:=https://files.pythonhosted.org/packages/2d/f2/8ec281d357e8bb7d08dc8d727f0e4c8ef3dae7d3fa75c69c8e452bb82d50/shapely-2.0.1-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
 PILLOW_URL:=https://files.pythonhosted.org/packages/01/61/3ff85fb4bb596ce3d223c8fcf93c8df5c12bc8899dfb4fb3cb1c5b20dd5f/Pillow-9.2.0-cp39-cp39-manylinux_2_28_x86_64.whl
 endif
 ifeq ($(PYVERSION), py310)
-HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/1.8.0/download/linux-64/hpp-fcl-1.8.0-py310hdaf7e41_1.tar.bz2
-EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/2.6.11/download/linux-64/eigenpy-2.6.11-py310hf3e5c9c_0.tar.bz2
-BOOST_URL:=https://anaconda.org/conda-forge/boost/1.74.0/download/linux-64/boost-1.74.0-py310h7c3ba0c_5.tar.bz2
+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
 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
-OCTOMAP_URL:=https://anaconda.org/conda-forge/octomap/1.9.7/download/linux-64/octomap-1.9.7-h4bd325d_0.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 ($(PLATFORM), macos)
-ifeq ($(PYVERSION), py37)
-HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/1.7.5/download/osx-64/hpp-fcl-1.7.5-py37h2d7f23a_0.tar.bz2
-EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/2.6.5/download/osx-64/eigenpy-2.6.5-py37h0695097_0.tar.bz2
-BOOST_URL:=https://anaconda.org/conda-forge/boost/1.74.0/download/osx-64/boost-1.74.0-py37hd79e0ac_3.tar.bz2
-LXML_URL:=https://files.pythonhosted.org/packages/1e/3e/f0abc15d5dac50939bccc589aae336d5ead4c72e7ad1039a2e0f3630ea92/lxml-4.6.3-cp37-cp37m-macosx_10_9_x86_64.whl
-SHAPELY_URL:=https://files.pythonhosted.org/packages/e6/7d/4923f27c340339e1c896c77cafc8ed672c8d381a025bbab6c6ddcba27e8f/shapely-2.0.1-cp37-cp37m-macosx_10_9_x86_64.whl
-PILLOW_URL:=https://files.pythonhosted.org/packages/88/49/c26fc3b5b0e82bdc9d8751d6b939da29327b0d98f7c3b95a575cbfed2743/Pillow-9.2.0-cp37-cp37m-macosx_10_10_x86_64.whl
-endif
+PYPI_PLATFORM:=--platform macosx_10_9_x86_64
 ifeq ($(PYVERSION), py39)
-HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/1.7.5/download/osx-64/hpp-fcl-1.7.5-py39h1e32b98_0.tar.bz2
-EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/2.6.5/download/osx-64/eigenpy-2.6.5-py39h5405915_0.tar.bz2
-BOOST_URL:=https://anaconda.org/conda-forge/boost/1.74.0/download/osx-64/boost-1.74.0-py39ha641261_3.tar.bz2
+HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/2.3.4/download/osx-64/hpp-fcl-2.3.4-py39hd85b194_0.conda
+EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/3.1.0/download/osx-64/eigenpy-3.1.0-py39hc4d6e28_0.conda
+BOOST_URL:=https://anaconda.org/conda-forge/boost/1.78.0/download/osx-64/boost-1.78.0-py39h953a6b8_4.tar.bz2
 LXML_URL:=https://files.pythonhosted.org/packages/b8/74/a71f7ad72e8db54ce899efab84507b801660750cbbfa6a39e6717557d36a/lxml-4.6.3-cp39-cp39-macosx_10_9_x86_64.whl
 SHAPELY_URL:=https://files.pythonhosted.org/packages/36/a4/7e542a209f862f967d7cb8e939eff155f4294a27d17e16441fb8bdd51a2c/shapely-2.0.1-cp39-cp39-macosx_10_9_x86_64.whl
 PILLOW_URL:=https://files.pythonhosted.org/packages/88/7a/ddfe28b485b623361457d4783007c1f9ba83a87f93e7fec32f64793efb6c/Pillow-9.2.0-cp39-cp39-macosx_10_10_x86_64.whl
 endif
 ifeq ($(PYVERSION), py310)
-HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/1.8.0/download/osx-64/hpp-fcl-1.8.0-py310h651ac30_1.tar.bz2
-EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/2.6.11/download/osx-64/eigenpy-2.6.11-py310hc03097c_0.tar.bz2
-BOOST_URL:=https://anaconda.org/conda-forge/boost/1.74.0/download/osx-64/boost-1.74.0-py310h509978a_5.tar.bz2
+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
 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
-OCTOMAP_URL:=https://anaconda.org/conda-forge/octomap/1.9.7/download/osx-64/octomap-1.9.7-h940c156_0.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 ($(PLATFORM), macosm1)
-ifeq ($(PYVERSION), py37)
-# Warning: py37 not supported on Apple M1
-HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/1.7.5/download/osx-64/hpp-fcl-1.7.5-py37h2d7f23a_0.tar.bz2
-EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/2.6.5/download/osx-64/eigenpy-2.6.5-py37h0695097_0.tar.bz2
-BOOST_URL:=https://anaconda.org/conda-forge/boost/1.74.0/download/osx-64/boost-1.74.0-py37hd79e0ac_3.tar.bz2
-LXML_URL:=https://anaconda.org/conda-forge/lxml/4.9.1/download/osx-64/lxml-4.9.1-py37h994c40b_0.tar.bz2
-SHAPELY_URL:=https://files.pythonhosted.org/packages/e6/7d/4923f27c340339e1c896c77cafc8ed672c8d381a025bbab6c6ddcba27e8f/shapely-2.0.1-cp37-cp37m-macosx_10_9_x86_64.whl
-PILLOW_URL:=https://files.pythonhosted.org/packages/aa/bc/21097cd891dd2fa02f2b3d767e02e883e026482e59d29975d1bc30024aa3/Pillow-9.2.0-cp39-cp39-macosx_11_0_arm64.whl
-endif
+PYPI_PLATFORM:=--platform macosx_11_0_arm64
 ifeq ($(PYVERSION), py39)
-HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/1.7.5/download/osx-arm64/hpp-fcl-1.7.5-py39ha69f3c1_2.tar.bz2
-EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/2.6.7/download/osx-arm64/eigenpy-2.6.7-py39ha69f3c1_0.tar.bz2
-BOOST_URL:=https://anaconda.org/conda-forge/boost/1.78.0/download/osx-arm64/boost-1.78.0-py39h2550fe3_0.tar.bz2
+HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/2.3.4/download/osx-arm64/hpp-fcl-2.3.4-py39hc34188a_0.conda
+EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/3.1.0/download/osx-arm64/eigenpy-3.1.0-py39h13cfc01_0.conda
+BOOST_URL:=https://anaconda.org/conda-forge/boost/1.78.0/download/osx-arm64/boost-1.78.0-py39h99de9ae_4.tar.bz2
 LXML_URL:=https://anaconda.org/conda-forge/lxml/4.9.1/download/osx-arm64/lxml-4.9.1-py39h9eb174b_0.tar.bz2
 SHAPELY_URL:=https://files.pythonhosted.org/packages/ea/aa/45fbd031edf3149cb767d8b9f9db45d5faf0324d743c6b8fb0298cc022d0/shapely-2.0.1-cp39-cp39-macosx_11_0_arm64.whl
 PILLOW_URL:=https://files.pythonhosted.org/packages/aa/bc/21097cd891dd2fa02f2b3d767e02e883e026482e59d29975d1bc30024aa3/Pillow-9.2.0-cp39-cp39-macosx_11_0_arm64.whl
 endif
 ifeq ($(PYVERSION), py310)
-HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/1.8.0/download/osx-arm64/hpp-fcl-1.8.0-py310h5699539_2.tar.bz2
-EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/2.6.9/download/osx-arm64/eigenpy-2.6.9-py310habfc766_1.tar.bz2
-BOOST_URL:=https://anaconda.org/conda-forge/boost/1.78.0/download/osx-arm64/boost-1.78.0-py310h4566fd1_0.tar.bz2
+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
 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
-OCTOMAP_URL:=https://anaconda.org/conda-forge/octomap/1.9.7/download/osx-arm64/octomap-1.9.7-hc021e02_0.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 ($(PLATFORM), win)
-ifeq ($(PYVERSION), py37)
-HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/1.7.5/download/win-64/hpp-fcl-1.7.5-py37h839d6b1_0.tar.bz2
-EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/2.6.5/download/win-64/eigenpy-2.6.5-py37h2c32e34_0.tar.bz2
-BOOST_URL:=https://anaconda.org/conda-forge/boost/1.74.0/download/win-64/boost-1.74.0-py37h3b38789_3.tar.bz2
-LXML_URL:=https://files.pythonhosted.org/packages/9e/5e/171ee9d40a600f565fe691ec5bf7596247ec62cfb2edc00c91afe8ea837b/lxml-4.6.3-cp37-cp37m-win_amd64.whl
-SHAPELY_URL:=https://files.pythonhosted.org/packages/e2/87/b8b8d8d57b429b01aa56b7d723075c09f33c988b8091bb6f790c83436909/shapely-2.0.1-cp37-cp37m-win_amd64.whl
-PILLOW_URL:=https://files.pythonhosted.org/packages/69/f5/9e802159d78b2eaf26bf1f8b94648605993f5ca7247ac8870f065063fc40/Pillow-9.2.0-cp37-cp37m-win_amd64.whl
-endif
+PYPI_PLATFORM:=--platform win_amd64
 ifeq ($(PYVERSION), py39)
-HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/1.7.5/download/win-64/hpp-fcl-1.7.5-py39h2e7c763_0.tar.bz2
-EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/2.6.5/download/win-64/eigenpy-2.6.5-py39h3ce40e6_0.tar.bz2
-BOOST_URL:=https://anaconda.org/conda-forge/boost/1.74.0/download/win-64/boost-1.74.0-py39hefe7e4c_3.tar.bz2
+HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/2.3.4/download/win-64/hpp-fcl-2.3.4-py39h39b25cb_0.conda
+EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/3.1.0/download/win-64/eigenpy-3.1.0-py39hb6c915b_0.conda
+BOOST_URL:=https://anaconda.org/conda-forge/boost/1.78.0/download/win-64/boost-1.78.0-py39hea4d8d1_4.tar.bz2
 LXML_URL:=https://files.pythonhosted.org/packages/72/d4/426ecb8849c47c3e370c87aa0ac05d85768df917ffea27fcd6686a5e6495/lxml-4.6.3-cp39-cp39-win_amd64.whl
 SHAPELY_URL:=https://files.pythonhosted.org/packages/a7/ae/eab645c4075093584b7a65ab71cb8ff4563a015bd935c9b55dba14b2c1eb/shapely-2.0.1-cp39-cp39-win_amd64.whl
 PILLOW_URL:=https://files.pythonhosted.org/packages/19/3f/b4d4bcf05dbcbe07f2e9613a8f4180c297395e73a91d8ad22c32c6624f8c/Pillow-9.2.0-cp39-cp39-win_amd64.whl
 endif
 ifeq ($(PYVERSION), py310)
-HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/1.8.0/download/win-64/hpp-fcl-1.8.0-py310hc5a3c62_1.tar.bz2
-EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/2.6.11/download/win-64/eigenpy-2.6.11-py310hbd43d28_0.tar.bz2
-BOOST_URL:=https://anaconda.org/conda-forge/boost/1.74.0/download/win-64/boost-1.74.0-py310hc781a3c_5.tar.bz2
+HPPFCL_URL:=https://anaconda.org/conda-forge/hpp-fcl/2.3.4/download/win-64/hpp-fcl-2.3.4-py310heb59267_0.conda
+EIGENPY_URL:=https://anaconda.org/conda-forge/eigenpy/3.1.0/download/win-64/eigenpy-3.1.0-py310hd146abe_0.conda
+BOOST_URL:=https://anaconda.org/conda-forge/boost/1.78.0/download/win-64/boost-1.78.0-py310h220cb41_4.tar.bz2
 LXML_URL:=https://files.pythonhosted.org/packages/f6/71/65c80a4caa1617a4c6e8fe1500cebb179db96232e2f623bfe6a1f4294e39/lxml-4.8.0-cp310-cp310-win_amd64.whl
 SHAPELY_URL:=https://files.pythonhosted.org/packages/81/8a/7ac076a86b2632f1872284c5e60ed5f2fc26094875a85b35d9fa17b52504/shapely-2.0.1-cp310-cp310-win_amd64.whl
 PILLOW_URL:=https://files.pythonhosted.org/packages/02/55/67a3c17b9e7d972ed8c246f104da99ca4f3ea42fba566697e479011b84b6/Pillow-9.2.0-cp310-cp310-win_amd64.whl
 endif
-ASSIMP_URL:=https://anaconda.org/conda-forge/assimp/5.0.1/download/win-64/assimp-5.0.1-hc2aa0de_6.tar.bz2
-OCTOMAP_URL:=https://anaconda.org/conda-forge/octomap/1.9.7/download/win-64/octomap-1.9.7-h5362a0b_0.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
 endif

@@ -190,7 +169,7 @@ endif
 	cp -r blenderbim/* dist/blenderbim/

 	# Provides IfcOpenShell Python functionality
-	cd dist/working && wget https://s3.amazonaws.com/ifcopenshell-builds/ifcopenshell-python-$(PYNUMBER)-v0.7.0-8f41ae0-$(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/

@@ -206,9 +185,7 @@ endif
 	# IfcOpenBot sometimes lags behind, so we hotfix the Python utilities
 	cp -r dist/working/IfcOpenShell-0.7.0/src/ifcopenshell-python/ifcopenshell/util/* dist/blenderbim/libs/site/packages/ifcopenshell/util/
 	cp -r dist/working/IfcOpenShell-0.7.0/src/ifcopenshell-python/ifcopenshell/api/* dist/blenderbim/libs/site/packages/ifcopenshell/api/
-	cp dist/working/IfcOpenShell-0.7.0/src/ifcopenshell-python/ifcopenshell/entity_instance.py dist/blenderbim/libs/site/packages/ifcopenshell/
-	cp dist/working/IfcOpenShell-0.7.0/src/ifcopenshell-python/ifcopenshell/file.py dist/blenderbim/libs/site/packages/ifcopenshell/
-	cp dist/working/IfcOpenShell-0.7.0/src/ifcopenshell-python/ifcopenshell/validate.py dist/blenderbim/libs/site/packages/ifcopenshell/
+	cp dist/working/IfcOpenShell-0.7.0/src/ifcopenshell-python/ifcopenshell/*.py dist/blenderbim/libs/site/packages/ifcopenshell/
 	cp dist/working/IfcOpenShell-0.7.0/src/ifcopenshell-python/ifcopenshell/express/rule_executor.py dist/blenderbim/libs/site/packages/ifcopenshell/express/
 	# Provides bcf functionality
 	cp -r dist/working/IfcOpenShell-0.7.0/src/bcf/src/bcf dist/blenderbim/libs/site/packages/
@@ -222,8 +199,10 @@ endif
 	cp -r dist/working/IfcOpenShell-0.7.0/src/ifcbimtester/bimtester dist/blenderbim/libs/site/packages/
 	# Provides IFCTester functionality
 	cp -r dist/working/IfcOpenShell-0.7.0/src/ifctester/ifctester dist/blenderbim/libs/site/packages/
-	# Provides IFCCOBie functionality
-	cp -r dist/working/IfcOpenShell-0.7.0/src/ifccobie/* dist/blenderbim/libs/site/packages/
+	# Provides IFCFM functionality
+	cp -r dist/working/IfcOpenShell-0.7.0/src/ifcfm/ifcfm dist/blenderbim/libs/site/packages/
+	# Provides bSDD functionality
+	cp -r dist/working/IfcOpenShell-0.7.0/src/bsdd/* dist/blenderbim/libs/site/packages/
 	# Provides IFCDiff functionality
 	cp -r dist/working/IfcOpenShell-0.7.0/src/ifcdiff/* dist/blenderbim/libs/site/packages/
 	# Provides IFCCSV functionality
@@ -404,6 +383,10 @@ endif
 	mkdir dist/working
 	cd dist/working && $(PYTHON) -m venv env
 	cd dist/working && mkdir site-packages
+	# Required by IfcCSV
+	cd dist/working && . env/bin/activate && $(PIP) install pandas $(PYPI_PLATFORM) --python-version $(PYPI_VERSION) --implementation $(PYPI_IMP) --only-binary=:all: --target=./site-packages
+	cd dist/working && . env/bin/activate && $(PIP) install openpyxl --target=./site-packages
+	cd dist/working && . env/bin/activate && $(PIP) install odfpy --target=./site-packages
 	# Required by IFCCityJSON
 	cd dist/working && . env/bin/activate && $(PIP) install cjio --target=./site-packages
 	# Provides express rule validation for ifcopenshell.validate
@@ -416,7 +399,8 @@ endif
 	# Required by IFCClash
 	mkdir dist/working
 	cd dist/working && wget $(HPPFCL_URL)
-	cd dist/working && tar -xf hpp-fcl*
+	cd dist/working && unzip hpp-fcl*
+	cd dist/working && tar -I zstd -xvf pkg*
 ifeq ($(PLATFORM), linux)
 	cp -r dist/working/lib/$(PYLIBDIR)/site-packages/hppfcl dist/blenderbim/libs/site/packages/
 	cp -r dist/working/lib/*.so* dist/blenderbim/libs/
@@ -425,6 +409,10 @@ ifeq ($(PLATFORM), macos)
 	cp -r dist/working/lib/$(PYLIBDIR)/site-packages/hppfcl dist/blenderbim/libs/site/packages/
 	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
 endif
+ifeq ($(PLATFORM), macosm1)
+	cp -r dist/working/lib/$(PYLIBDIR)/site-packages/hppfcl dist/blenderbim/libs/site/packages/
+	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
+endif
 ifeq ($(PLATFORM), win)
 	cp -r dist/working/Lib/site-packages/hppfcl dist/blenderbim/libs/site/packages/
 	cp -r dist/working/Library/bin/*.dll dist/blenderbim/libs/site/packages/hppfcl/
@@ -441,6 +429,27 @@ endif
 ifeq ($(PLATFORM), macos)
 	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
 endif
+ifeq ($(PLATFORM), macosm1)
+	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
+endif
+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
+	cd dist/working && wget $(QHULL_URL)
+	cd dist/working && tar -xf qhull*
+ifeq ($(PLATFORM), linux)
+	cp -r dist/working/lib/*.so* dist/blenderbim/libs/
+endif
+ifeq ($(PLATFORM), macos)
+	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
+endif
+ifeq ($(PLATFORM), macosm1)
+	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
+endif
 ifeq ($(PLATFORM), win)
 	cp -r dist/working/Library/bin/*.dll dist/blenderbim/libs/site/packages/hppfcl/
 endif
@@ -449,13 +458,17 @@ endif
 	# Required by hpp-fcl
 	mkdir dist/working
 	cd dist/working && wget $(EIGENPY_URL)
-	cd dist/working && tar -xf eigenpy*
+	cd dist/working && unzip eigenpy*
+	cd dist/working && tar -I zstd -xvf pkg*
 ifeq ($(PLATFORM), linux)
 	cp -r dist/working/lib/*.so* dist/blenderbim/libs/
 endif
 ifeq ($(PLATFORM), macos)
 	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
 endif
+ifeq ($(PLATFORM), macosm1)
+	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
+endif
 ifeq ($(PLATFORM), win)
 	cp -r dist/working/Library/bin/*.dll dist/blenderbim/libs/site/packages/hppfcl/
 endif
@@ -471,8 +484,11 @@ endif
 ifeq ($(PLATFORM), macos)
 	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
 endif
+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

@@ -486,11 +502,33 @@ endif
 ifeq ($(PLATFORM), macos)
 	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
 endif
+ifeq ($(PLATFORM), macosm1)
+	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
+endif
 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
+	cd dist/working && wget $(BOOSTCPP_URL)
+	cd dist/working && unzip boost-cpp*
+	cd dist/working && tar -I zstd -xvf pkg*
+ifeq ($(PLATFORM), linux)
+	cp -r dist/working/lib/libboost_serialization.so* dist/blenderbim/libs/
+endif
+ifeq ($(PLATFORM), macos)
+	cp -r dist/working/lib/libboost_serialization.dylib dist/blenderbim/libs/
+endif
+ifeq ($(PLATFORM), macosm1)
+	cp -r dist/working/lib/libboost_serialization.dylib dist/blenderbim/libs/
+endif
+ifeq ($(PLATFORM), win)
+	cp -r dist/working/Library/bin/boost_serialization.dll dist/blenderbim/libs/site/packages/hppfcl/
+endif
+	rm -rf dist/working
+
 	# Required by hpp-fcl
 	mkdir dist/working
 	cd dist/working && wget $(ZLIB_URL)
@@ -501,6 +539,9 @@ endif
 ifeq ($(PLATFORM), macos)
 	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
 endif
+ifeq ($(PLATFORM), macosm1)
+	cp -r dist/working/lib/*.dylib dist/blenderbim/libs/
+endif
 ifeq ($(PLATFORM), win)
 	cp -r dist/working/Library/bin/*.dll dist/blenderbim/libs/site/packages/hppfcl/
 endif
@@ -553,28 +594,6 @@ endif
 	cd dist/working/parse_type-0.5.2/ && cp -r parse_type ../../blenderbim/libs/site/packages/
 	rm -rf dist/working

-	# Required by IFCCOBie for XLSX support
-	# TODO: see if we can replace this with openpyxl which does both read/write
-	mkdir dist/working
-	cd dist/working && wget https://files.pythonhosted.org/packages/0c/bc/82d6783f83f65f56d8b77d052773c4a2f952fa86385f0cd54e1e006658d7/XlsxWriter-1.2.9.tar.gz
-	cd dist/working && tar -xzvf XlsxWriter*
-	cd dist/working/XlsxWriter-1.2.9/ && cp -r xlsxwriter ../../blenderbim/libs/site/packages/
-	rm -rf dist/working
-
-	# Required by IFCCOBie for ODS support
-	mkdir dist/working
-	cd dist/working && wget https://files.pythonhosted.org/packages/97/73/8ade73f6749177003f7ce3304f524774adda96e6aaab30ea79fd8fda7934/odfpy-1.4.1.tar.gz
-	cd dist/working && tar -xzvf odfpy*
-	cd dist/working/odfpy-1.4.1/ && cp -r odf ../../blenderbim/libs/site/packages/
-	rm -rf dist/working
-
-	# Required by odfpy
-	mkdir dist/working
-	cd dist/working && wget https://files.pythonhosted.org/packages/a4/5f/f8aa58ca0cf01cbcee728abc9d88bfeb74e95e6cb4334cfd5bed5673ea77/defusedxml-0.6.0.tar.gz
-	cd dist/working && tar -xzvf defusedxml*
-	cd dist/working/defusedxml-0.6.0/ && cp -r defusedxml ../../blenderbim/libs/site/packages/
-	rm -rf dist/working
-
 	# Required by augin
 	mkdir dist/working
 	cd dist/working && wget https://files.pythonhosted.org/packages/76/b4/b7baffbda025efd5dc8fcd8d2e953e3aa939c236a484084fa8f4c3588ee9/boto3-1.17.17.tar.gz
@@ -647,6 +666,7 @@ endif
 	rm -rf dist/blenderbim/libs/site/packages/numpy.libs

 	cd dist/blenderbim && $(SED) "s/999999/$(VERSION)/" __init__.py
+	cd dist/blenderbim/bim && $(SED) "s/8888888/$(LAST_COMMIT_HASH)/" __init__.py
 	cd dist && zip -r blenderbim-$(VERSION)-$(PYVERSION)-$(PLATFORM).zip ./*
 	rm -rf dist/blenderbim

@@ -22,13 +22,14 @@ import site

 bl_info = {
    "name": "BlenderBIM",
-    "description": "Author, import, and export data using the Industry Foundation Classes schema",
+    "description": "Transforms Blender into a native Building Information Model authoring platform using IFC.",
    "author": "IfcOpenShell Contributors",
-    "blender": (2, 80, 0),
+    "blender": (3, 1, 0),
    "version": (0, 0, 999999),
-    "location": "File > Export, File > Import, Scene / Object / Material / Mesh Properties",
+    "location": "File Menu, Scene Properties Tab. See documentation for more.",
+    "doc_url": "https://blenderbim.org/docs",
    "tracker_url": "https://github.com/IfcOpenShell/IfcOpenShell/issues",
-    "category": "Import-Export",
+    "category": "System",
 }

 if sys.modules.get("bpy", None):
@@ -16,15 +16,21 @@
 # You should have received a copy of the GNU General Public License
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.

+import os
+from pathlib import Path
 import bpy
+import bpy.utils.previews
 import blenderbim
 import importlib
 from . import handler, ui, prop, operator, helper

+cwd = os.path.dirname(os.path.realpath(__file__))
+
 modules = {
    "project": None,
    "search": None,
    "bcf": None,
+    "bsdd": None,
    "root": None,
    "unit": None,
    "model": None,
@@ -39,7 +45,7 @@ modules = {
    "void": None,
    "aggregate": None,
    "geometry": None,
-    "cobie": None,
+    "fm": None,
    "resource": None,
    "cost": None,
    "sequence": None,
@@ -72,6 +78,7 @@ modules = {
    "augin": None,
    "debug": None,
    "ifcgit": None,
+    "covering": None,
    # Uncomment this line to enable loading of the demo module. Happy hacking!
    # The name "demo" must correlate to a folder name in `bim/module/`.
    # "demo": None,
@@ -86,9 +93,10 @@ classes = [
    operator.AddIfcFile,
    operator.BIM_OT_add_section_plane,
    operator.BIM_OT_remove_section_plane,
-    operator.ConfigureVisibility,
    operator.OpenUpstream,
    operator.OpenUri,
+    operator.SwitchTab,
+    operator.SetTab,
    operator.ReloadIfcFile,
    operator.RemoveIfcFile,
    operator.SelectDataDir,
@@ -105,7 +113,7 @@ classes = [
    operator.BIM_OT_enum_property_search,  # /!\ Register AFTER prop.StrProperty
    prop.ObjProperty,
    prop.Attribute,
-    prop.ModuleVisibility,
+    prop.BIMAreaProperties,
    prop.BIMProperties,
    prop.IfcParameter,
    prop.PsetQto,
@@ -114,51 +122,79 @@ classes = [
    prop.BIMCollectionProperties,
    prop.BIMMaterialProperties,
    prop.BIMMeshProperties,
-    ui.BIM_PT_section_plane,
    ui.BIM_UL_generic,
    ui.BIM_UL_topics,
    ui.BIM_ADDON_preferences,
-    # Scene panel groups
+    # Project overview
    ui.BIM_PT_project_info,
    ui.BIM_PT_project_setup,
-    ui.BIM_PT_collaboration,
-    ui.BIM_PT_selection,
    ui.BIM_PT_geometry,
-    ui.BIM_PT_services,
-    ui.BIM_PT_structural,
-    ui.BIM_PT_4D5D,
-    ui.BIM_PT_quality_control,
-    ui.BIM_PT_integrations,
-    # Object panel groups
-    ui.BIM_PT_object_metadata,
-    ui.BIM_PT_geometry_object,
-    ui.BIM_PT_services_object,
-    ui.BIM_PT_utilities_object,
-    ui.BIM_PT_misc_object,
+    ui.BIM_PT_tab_grouping_and_filtering,
+    # Tabs panel
+    ui.BIM_PT_tabs,
+    # Object information
+    ui.BIM_PT_tab_object_metadata,
+    ui.BIM_PT_tab_misc,
+    # Geometry and materials
+    ui.BIM_PT_tab_representations,
+    ui.BIM_PT_tab_geometric_relationships,
+    ui.BIM_PT_tab_parametric_geometry,
+    ui.BIM_PT_tab_materials,
+    ui.BIM_PT_tab_styles,
+    # Drawings and documents
+    # Services and systems
+    ui.BIM_PT_tab_services,
+    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
+    ui.BIM_PT_section_plane,
 ]

 for mod in modules.values():
    classes.extend(mod.classes)

+addon_keymaps = []
+icons = None
+is_registering = False
+last_commit_hash = "8888888"
+

 def on_register(scene):
-    handler.setDefaultProperties(scene)
+    global is_registering
+
+    if is_registering:
+        return
+    is_registering = True
+    handler.load_post(scene)
    if not bpy.app.background:
        bpy.app.handlers.depsgraph_update_post.remove(on_register)
+    is_registering = False


 def register():
    for cls in classes:
        bpy.utils.register_class(cls)
    bpy.app.handlers.depsgraph_update_post.append(on_register)
-    bpy.app.handlers.undo_pre.append(handler.undo_pre)
    bpy.app.handlers.undo_post.append(handler.undo_post)
-    bpy.app.handlers.redo_pre.append(handler.redo_pre)
    bpy.app.handlers.redo_post.append(handler.redo_post)
-    bpy.app.handlers.load_post.append(handler.setDefaultProperties)
+    bpy.app.handlers.load_post.append(handler.load_post)
    bpy.app.handlers.load_post.append(handler.loadIfcStore)
-    bpy.app.handlers.save_post.append(handler.ensureIfcExported)
    bpy.types.Scene.BIMProperties = bpy.props.PointerProperty(type=prop.BIMProperties)
+    bpy.types.Screen.BIMAreaProperties = bpy.props.CollectionProperty(type=prop.BIMAreaProperties)
    bpy.types.Collection.BIMCollectionProperties = bpy.props.PointerProperty(type=prop.BIMCollectionProperties)
    bpy.types.Object.BIMObjectProperties = bpy.props.PointerProperty(type=prop.BIMObjectProperties)
    bpy.types.Material.BIMObjectProperties = bpy.props.PointerProperty(type=prop.BIMObjectProperties)
@@ -167,24 +203,53 @@ def register():
    bpy.types.Curve.BIMMeshProperties = bpy.props.PointerProperty(type=prop.BIMMeshProperties)
    bpy.types.Camera.BIMMeshProperties = bpy.props.PointerProperty(type=prop.BIMMeshProperties)
    bpy.types.PointLight.BIMMeshProperties = bpy.props.PointerProperty(type=prop.BIMMeshProperties)
-    bpy.types.SCENE_PT_unit.append(ui.ifc_units)
    if hasattr(bpy.types, "UI_MT_button_context_menu"):
        bpy.types.UI_MT_button_context_menu.append(ui.draw_custom_context_menu)
+    bpy.types.STATUSBAR_HT_header.append(ui.draw_statusbar)

    for mod in modules.values():
        mod.register()

+    wm = bpy.context.window_manager
+    if wm.keyconfigs.addon:
+        km = wm.keyconfigs.addon.keymaps.new(name='Window', space_type='EMPTY')
+        kmi = km.keymap_items.new('bim.switch_tab', 'TAB', 'PRESS', ctrl=True)
+        addon_keymaps.append((km, kmi))
+
+    global icons
+
+    icons_dir = os.path.join(cwd, "data", "icons")
+    icon_preview = bpy.utils.previews.new()
+    for filename in os.listdir(icons_dir):
+        if filename.endswith(".png"):
+            icon_name = os.path.splitext(filename)[0]
+            icon_path = os.path.join(icons_dir, filename)
+            icon_preview.load(icon_name, icon_path, "IMAGE")
+
+    icons = icon_preview
+
+    global last_commit_hash
+    try:
+        import git
+        path = Path(__file__).resolve().parent
+        repo = git.Repo(str(path), search_parent_directories=True)
+        last_commit_hash = repo.head.object.hexsha
+    except:
+        pass

 def unregister():
+    global icons
+
+    bpy.utils.previews.remove(icons)
+
    for cls in reversed(classes):
        if getattr(cls, "is_registered", None) is None:
            bpy.utils.unregister_class(cls)
        elif cls.is_registered:
            bpy.utils.unregister_class(cls)

-    bpy.app.handlers.load_post.remove(handler.setDefaultProperties)
+    bpy.app.handlers.load_post.remove(handler.load_post)
    bpy.app.handlers.load_post.remove(handler.loadIfcStore)
-    bpy.app.handlers.save_post.remove(handler.ensureIfcExported)
    del bpy.types.Scene.BIMProperties
    del bpy.types.Collection.BIMCollectionProperties
    del bpy.types.Object.BIMObjectProperties
@@ -194,9 +259,30 @@ def unregister():
    del bpy.types.Curve.BIMMeshProperties
    del bpy.types.Camera.BIMMeshProperties
    del bpy.types.PointLight.BIMMeshProperties
-    bpy.types.SCENE_PT_unit.remove(ui.ifc_units)
    if hasattr(bpy.types, "UI_MT_button_context_menu"):
        bpy.types.UI_MT_button_context_menu.remove(ui.draw_custom_context_menu)
+    bpy.types.STATUSBAR_HT_header.remove(ui.draw_statusbar)

    for mod in reversed(list(modules.values())):
        mod.unregister()
+
+    wm = bpy.context.window_manager
+    kc = wm.keyconfigs.addon
+    if kc:
+        for km, kmi in addon_keymaps:
+            km.keymap_items.remove(kmi)
+    addon_keymaps.clear()
+
+    for panel in [
+        "SCENE_PT_scene",
+        "SCENE_PT_unit",
+        "SCENE_PT_physics",
+        "SCENE_PT_rigid_body_world",
+        "SCENE_PT_audio",
+        "SCENE_PT_keying_sets",
+        "SCENE_PT_custom_props",
+    ]:
+        try:
+            bpy.utils.unregister_class(getattr(handler, f"Override_{panel}"))
+        except:
+            pass
@@ -27,6 +27,12 @@ text, tspan { /* 2.5mm */ fill: black; stroke: none; font-family: 'OpenGost Type
 .IfcAnnotation { fill: none; stroke: black; stroke-linecap: 'round'; stroke-width: 0.25; }
 .IfcGeographicElement { fill: none; stroke: black; stroke-linecap: 'round'; stroke-width: 1; }
 .PredefinedType-LINEWORK { stroke: black; stroke-width: 0.25; }
+.PredefinedType-LINEWORK.dashed { stroke-dasharray: 3, 2; }
+.PredefinedType-LINEWORK.fine { stroke-width: 0.18; stroke: #777777; }
+.PredefinedType-LINEWORK.thin { stroke-width: 0.25; }
+.PredefinedType-LINEWORK.medium { stroke-width: 0.35; }
+.PredefinedType-LINEWORK.thick { stroke-width: 0.5; }
+.PredefinedType-LINEWORK.strong { stroke-width: 1; }
 .PredefinedType-BACKGROUND { stroke: black; stroke-width: 0.18; }
 .PredefinedType-GRID { marker-start: url(#grid-marker); marker-end: url(#grid-marker); }
 .PredefinedType-SECTION { stroke-dasharray: 12.5, 3, 3, 3; }
@@ -40,7 +46,6 @@ text, tspan { /* 2.5mm */ fill: black; stroke: none; font-family: 'OpenGost Type
 .PredefinedType-SLOPEPERCENT { marker-end: url(#radius-marker-end); }
 .PredefinedType-SLOPEFRACTION { marker-end: url(#radius-marker-end); }
 .PredefinedType-DIAMETER { marker-start: url(#diameter-marker-start); marker-end: url(#diameter-marker-end); }
-.PredefinedType-HIDDENLINE { stroke-dasharray: 3, 2; }
 .PredefinedType-STAIRARROW { marker-start: url(#stair-marker-start); marker-end: url(#stair-marker-end); }
 .PredefinedType-BOUNDARY { fill: none; stroke: red; stroke-width: 1; stroke-dasharray: 12, 4, 3, 4, 3, 4; }
 .PredefinedType-SEALANT { fill: url(#crosshatch1); stroke-width: 0.25; }
@@ -75,7 +75,7 @@
    <marker id="stair-marker-end" markerHeight="42" markerWidth="21" orient="auto" refX="21" refY="21">
        <path d="M 0 0 L 21 21 L 0 42" class="annotation stair" style="stroke-width:2; marker-start: none; marker-end: none;" />
    </marker>
-    <marker id="plan-level-marker" markerHeight="30" markerWidth="30" refX="15" refY="15">
+    <marker id="plan-level-marker" markerHeight="30" markerWidth="30" refX="15" refY="15" orient="auto">
        <g>
            <path d="M 15 0 L 15 30" class="annotation" style="stroke-width:1;" />
            <path d="M 0 15 L 30 15" class="annotation" style="stroke-width:1;" />
@@ -84,7 +84,7 @@
            <path d="M 15 15 L 22.5 15 A 7.5 7.5 0 0 1 15 22.5 Z" fill="black"/>
        </g>
    </marker>
-    <marker id="section-level-marker" markerHeight="11" markerWidth="90" refX="20" refY="10">
+    <marker id="section-level-marker" markerHeight="11" markerWidth="90" refX="20" refY="10" orient="auto-start-reverse">
        <g>
            <path d="M 0 1 L 20 1 L 10 11 Z" fill="black" />
            <path d="M 0 1 L 90 1" class="annotation" style="stroke-width:1;" />
@@ -389,7 +389,7 @@
            "scene.display.shading.studiolight_background_blur": 0.0,
            "scene.display.shading.studiolight_intensity": 0.0,
            "scene.display.shading.studiolight_rotate_z": 0.0,
-            "scene.display.shading.type": "SOLID",
+            "scene.display.shading.type": "RENDERED",
            "scene.display.shading.use_compositor": "DISABLED",
            "scene.display.shading.use_dof": false,
            "scene.display.shading.use_scene_lights": false,
@@ -640,7 +640,7 @@
            "scene.display.shading.studiolight_background_blur": 0.0,
            "scene.display.shading.studiolight_intensity": 0.0,
            "scene.display.shading.studiolight_rotate_z": 0.0,
-            "scene.display.shading.type": "SOLID",
+            "scene.display.shading.type": "RENDERED",
            "scene.display.shading.use_compositor": "DISABLED",
            "scene.display.shading.use_dof": false,
            "scene.display.shading.use_scene_lights": false,
@@ -752,4 +752,4 @@
            "space.overlay.xray_alpha_bone": 0.0
        }
    }
-}
+}
@@ -21,6 +21,9 @@
        <line x1="-5" x2="5" style="stroke: black; stroke-width: 0.25;" />
        <text y="2.5" class="regular" text-anchor="middle" dominant-baseline="middle" data-type="text-template"></text>
    </g>
+    <g id="window-tag">
+        <path style="fill: white; stroke: black; stroke-width: 0.25;" d="m 0.0161133,-6.0583333 5.2339915,3.8366023 -2.031433,6.1633977 c 0,0 -6.4894866,-0.027414 -6.4894866,-0.027414 l -1.97929,-6.1803395 5.2662181,-3.7922467" />
+    </g>
    <g id="space-tag">
        <text y="-5" class="large" text-anchor="middle" dominant-baseline="middle" data-type="text-template"></text>
        <rect x="-6" y="-2.5" width="12" height="5" fill="white" stroke="black" style="stroke-width: 0.25;" />
@@ -41,4 +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="dot">
+        <circle r="1" fill="black" stroke="black" style="stroke-width: 0.25;" />
+    </g>
+    <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="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="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>
@@ -5,27 +5,27 @@ FILE_NAME('EPset_Drawing.ifc','2020-01-01T00:00:00',(),(),'EPset_Drawing','EPset
 FILE_SCHEMA(('IFC4'));
 ENDSEC;
 DATA;
-#1=IFCPROPERTYSETTEMPLATE('2JhNIvqZrFnAgxfhK0XVQX',$,'EPset_Drawing','',.PSET_OCCURRENCEDRIVEN.,'IfcAnnotation',(#2,#3,#4,#5,#6,#7,#8,#9,#10,#11,#12,#13,#14,#15,#16,#17,#18,#19,#20,#21));
+#1=IFCPROPERTYSETTEMPLATE('2JhNIvqZrFnAgxfhK0XVQX',$,'EPset_Drawing','',.PSET_OCCURRENCEDRIVEN.,'IfcAnnotation',(#2,#3,#4,#5,#6,#7,#8,#9,#10,#11,#12,#13,#14,#15,#16,#17,#18,#19,#20,#21,#22));
 #2=IFCSIMPLEPROPERTYTEMPLATE('23JavTMk98ZxXhrUEnjAcf',$,'TargetView','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
 #3=IFCSIMPLEPROPERTYTEMPLATE('1yVWUt5H9DAOuu0OaMMLpe',$,'Scale','The scale of this drawing represented as a numerator and denominator, such as 1/100',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
 #4=IFCSIMPLEPROPERTYTEMPLATE('3gsuPBtU93b8f0gg1pjkq6',$,'HumanScale','The scale of this drawing in human readable format, such as 1:100',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
-#4=IFCSIMPLEPROPERTYTEMPLATE('2T$a4OFsv2LeD5JeBKEV4f',$,'IsNTS','Whether or not the scale is intended to be significant',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
-#5=IFCSIMPLEPROPERTYTEMPLATE('0AK5C2UpL4$eaac2LszAx$',$,'HasUnderlay','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
-#6=IFCSIMPLEPROPERTYTEMPLATE('2j2ZEZR8X5tONm7kli5hM6',$,'HasLinework','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
-#7=IFCSIMPLEPROPERTYTEMPLATE('1ttChRysH9UuEX2FeMj5Hu',$,'HasAnnotation','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
-#8=IFCSIMPLEPROPERTYTEMPLATE('2NPPxuABv1huDTVh32TFgw',$,'GlobalReferencing','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
-#9=IFCSIMPLEPROPERTYTEMPLATE('10hT_1zrzEbRRKMXYAWvtD',$,'Metadata','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#10=IFCSIMPLEPROPERTYTEMPLATE('3Z0BXPSG5CWgtI33ioV7aj',$,'Include','Selector expression to include ifc elements in the drawing',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#11=IFCSIMPLEPROPERTYTEMPLATE('1RVts_g3PAw98PJA2yL3bO',$,'Exclude','Selector expression to exclude ifc elements in the drawing',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#12=IFCSIMPLEPROPERTYTEMPLATE('0c1$8NpYDEaBiJrj16jHIo',$,'Stylesheet','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#13=IFCSIMPLEPROPERTYTEMPLATE('3mRF52q81FQB$h4oTh7M45',$,'Markers','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#14=IFCSIMPLEPROPERTYTEMPLATE('1rhr_0N3LDtuORcEJP0KXM',$,'Symbols','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#15=IFCSIMPLEPROPERTYTEMPLATE('2sHDBuW7P4TROy$hL2w7ct',$,'Patterns','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#16=IFCSIMPLEPROPERTYTEMPLATE('1$xfo9EVb26QLqmPll2_RK',$,'MetricPrecision','',.P_SINGLEVALUE.,'IfcReal',$,$,$,$,$,.READWRITE.);
-#17=IFCSIMPLEPROPERTYTEMPLATE('38uAtrp9nD_901NO42zd$7',$,'ImperialPrecision','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
-#18=IFCSIMPLEPROPERTYTEMPLATE('1MX0uffTL6TOvtvEJpxFmk',$,'DecimalPlaces','',.P_SINGLEVALUE.,'IfcInteger',$,$,$,$,$,.READWRITE.);
-#19=IFCSIMPLEPROPERTYTEMPLATE('0joEq0Rd10cxweEh0NeHT6',$,'JoinCriteria','Comma separated selection keys which determine what cut objects are to be joined.',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#20=IFCSIMPLEPROPERTYTEMPLATE('0nYMT3OSj5gArVniCWZRtv',$,'ShadingStyles','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#21=IFCSIMPLEPROPERTYTEMPLATE('3VWG22eZXBdQwdKlzMeVQH',$,'CurrentShadingStyle','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
+#5=IFCSIMPLEPROPERTYTEMPLATE('2T$a4OFsv2LeD5JeBKEV4f',$,'IsNTS','Whether or not the scale is intended to be significant',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
+#6=IFCSIMPLEPROPERTYTEMPLATE('0AK5C2UpL4$eaac2LszAx$',$,'HasUnderlay','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
+#7=IFCSIMPLEPROPERTYTEMPLATE('2j2ZEZR8X5tONm7kli5hM6',$,'HasLinework','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
+#8=IFCSIMPLEPROPERTYTEMPLATE('1ttChRysH9UuEX2FeMj5Hu',$,'HasAnnotation','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
+#9=IFCSIMPLEPROPERTYTEMPLATE('2NPPxuABv1huDTVh32TFgw',$,'GlobalReferencing','',.P_SINGLEVALUE.,'IfcBoolean',$,$,$,$,$,.READWRITE.);
+#10=IFCSIMPLEPROPERTYTEMPLATE('10hT_1zrzEbRRKMXYAWvtD',$,'Metadata','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#11=IFCSIMPLEPROPERTYTEMPLATE('3Z0BXPSG5CWgtI33ioV7aj',$,'Include','Selector expression to include ifc elements in the drawing',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#12=IFCSIMPLEPROPERTYTEMPLATE('1RVts_g3PAw98PJA2yL3bO',$,'Exclude','Selector expression to exclude ifc elements in the drawing',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#13=IFCSIMPLEPROPERTYTEMPLATE('0c1$8NpYDEaBiJrj16jHIo',$,'Stylesheet','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#14=IFCSIMPLEPROPERTYTEMPLATE('3mRF52q81FQB$h4oTh7M45',$,'Markers','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#15=IFCSIMPLEPROPERTYTEMPLATE('1rhr_0N3LDtuORcEJP0KXM',$,'Symbols','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#16=IFCSIMPLEPROPERTYTEMPLATE('2sHDBuW7P4TROy$hL2w7ct',$,'Patterns','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#17=IFCSIMPLEPROPERTYTEMPLATE('1$xfo9EVb26QLqmPll2_RK',$,'MetricPrecision','',.P_SINGLEVALUE.,'IfcReal',$,$,$,$,$,.READWRITE.);
+#18=IFCSIMPLEPROPERTYTEMPLATE('38uAtrp9nD_901NO42zd$7',$,'ImperialPrecision','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
+#19=IFCSIMPLEPROPERTYTEMPLATE('1MX0uffTL6TOvtvEJpxFmk',$,'DecimalPlaces','',.P_SINGLEVALUE.,'IfcInteger',$,$,$,$,$,.READWRITE.);
+#20=IFCSIMPLEPROPERTYTEMPLATE('0joEq0Rd10cxweEh0NeHT6',$,'JoinCriteria','Comma separated selection keys which determine what cut objects are to be joined.',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#21=IFCSIMPLEPROPERTYTEMPLATE('0nYMT3OSj5gArVniCWZRtv',$,'ShadingStyles','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#22=IFCSIMPLEPROPERTYTEMPLATE('3VWG22eZXBdQwdKlzMeVQH',$,'CurrentShadingStyle','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
 ENDSEC;
 END-ISO-10303-21;
@@ -0,0 +1,13 @@
+ISO-10303-21;
+HEADER;
+FILE_DESCRIPTION((),'2;1');
+FILE_NAME('EPset_Status.ifc','2020-01-01T00:00:00',(),(),'EPset_Status','EPset_Status',$);
+FILE_SCHEMA(('IFC4'));
+ENDSEC;
+DATA;
+#1=IFCPROPERTYSETTEMPLATE('3JoyTt$cz4fhYuQvJeTMhs',$,'EPset_Status','',.PSET_TYPEDRIVENOVERRIDE.,'IfcProduct',(#2,#4));
+#2= IFCSIMPLEPROPERTYTEMPLATE('2HBOdOfz5E3hZ7IBLCq$$D',$,'Status','Status of the element, predominately used in renovation or retrofitting projects. The status can be assigned to as "New" - element designed as new addition, "Existing" - element exists and remains, "Demolish" - element existed but is to be demolished,  "Temporary" - element will exists only temporary (like a temporary support structure).',.P_ENUMERATEDVALUE.,'IfcLabel',$,#3,$,$,$,.READWRITE.);
+#3= IFCPROPERTYENUMERATION('EPEnum_ElementStatus',(IFCLABEL('NEW'),IFCLABEL('EXISTING'),IFCLABEL('DEMOLISH'),IFCLABEL('TEMPORARY'),IFCLABEL('OTHER'),IFCLABEL('NOTKNOWN'),IFCLABEL('UNSET')),$);
+#4=IFCSIMPLEPROPERTYTEMPLATE('3ttXxqmlz62BlxjzEPpqvH',$,'UserDefinedStatus','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
+ENDSEC;
+END-ISO-10303-21;
@@ -0,0 +1,16 @@
+ISO-10303-21;
+HEADER;
+FILE_DESCRIPTION((),'2;1');
+FILE_NAME('EQto_BodyGeometryValidation.ifc','2020-01-01T00:00:00',(),(),'EQto_BodyGeometryValidation','EQto_BodyGeometryValidation',$);
+FILE_SCHEMA(('IFC4'));
+ENDSEC;
+DATA;
+#1=IFCPROPERTYSETTEMPLATE('2KS9su6r517uLXTGKwwDdn',$,'EQto_BodyGeometryValidation','Quantities supplied for validating the correct interpretation of the body shape representation at import. In case of multiple representation items, the quantities are summed for each of the items (irrespective of any overlap). Choosing a suitable tolerance value for comparing the supplied numbers to the numbers calculated from the reconstructed geometry is at the discretion of the importing application.',.QTO_OCCURRENCEDRIVEN.,'IfcProduct',(#2,#3,#4,#5,#6,#7));
+#2=IFCSIMPLEPROPERTYTEMPLATE('3iCdOOLRjCwQ_HRTB41Xh8',$,'GrossSurfaceArea','Total gross area of the object, normally generated as perimeter * length + 2 * cross section area. It is the sum of OuterSurfaceArea + (2 x CrossSectionArea) and shall only be given, if the OuterSurfaceArea and CrossSectionArea cannot be established separately.\X2\000A000A\X0\Total gross surface area of the element before applying product-level geometric features such as openings and projections.',.Q_AREA.,$,$,$,$,$,$,.READWRITE.);
+#3=IFCSIMPLEPROPERTYTEMPLATE('0juemEqF5889vg7HwR87Fv',$,'NetSurfaceArea','Net surface area of the object, normally generated as perimeter * length + 2 * cross section area taking into account possible processing features (cut-out''s, etc.) or openings and recesses.\X2\000A000A\X0\Total net surface area of the element after applying product-level geometric features such as openings and projections.',.Q_AREA.,$,$,$,$,$,$,.READWRITE.);
+#4=IFCSIMPLEPROPERTYTEMPLATE('1LUuLSnMXFDgGLBCvte8aH',$,'GrossVolume','Total gross volume of the object. Openings, recesses, enclosed objects and projections are not taken into account.\X2\000A000A\X0\Total gross volume of the element before applying product-level geometric features such as openings and projections.',.Q_VOLUME.,$,$,$,$,$,$,.READWRITE.);
+#5=IFCSIMPLEPROPERTYTEMPLATE('0ny7TXUFz8wvnoQ2eU8czF',$,'NetVolume','Total net volume of the object, taking into account possible processing features (cut-out''s, etc.) or openings and recesses.\X2\000A000A\X0\Total net volume of the element before applying product-level geometric features such as openings and projections.',.Q_VOLUME.,$,$,$,$,$,$,.READWRITE.);
+#6=IFCSIMPLEPROPERTYTEMPLATE('31g8_gdUv8KRkOWzW48KoP',$,'SurfaceGenusBeforeFeatures','The Surface Genus of the evaluated representation items before applying product-level geometric features such as openings and projections.Surface Genus is a topological measure that represents the number of "holes" or "handles" on a surface. For example, a sphere has genus 0, and a torus has genus 1.Computed using the Euler characteristic:$$\\chi=V-E+F$$With the numbers of vertices (V), edges (E) and faces (F)$$\\chi=2\X2\2212\X0\2g\X2\2212\X0\b$$With surface genus (g) and the number of boundaries (b) the latter zero in case of an enclosed volume.',.Q_COUNT.,$,$,$,$,$,$,.READWRITE.);
+#7=IFCSIMPLEPROPERTYTEMPLATE('3kBBtGUebC09mUggGTKpjj',$,'SurfaceGenusAfterFeatures','The Surface Genus of the evaluated representation items after applying product-level geometric features such as openings and projections.Surface Genus is a topological measure that represents the number of "holes" or "handles" on a surface. For example, a sphere has genus 0, and a torus has genus 1.Computed using the Euler characteristic:$$\\chi=V-E+F$$With the numbers of vertices (V), edges (E) and faces (F)$$\\chi=2\X2\2212\X0\2g\X2\2212\X0\b$$With surface genus (g) and the number of boundaries (b) the latter zero in case of an enclosed volume.',.Q_COUNT.,$,$,$,$,$,$,.READWRITE.);
+ENDSEC;
+END-ISO-10303-21;
@@ -0,0 +1,23 @@
+ISO-10303-21;
+HEADER;
+FILE_DESCRIPTION(('ViewDefinition [CoordinationView]'),'2;1');
+FILE_NAME('','2023-09-28T23:00:50',(),(),'IfcOpenShell v0.7.0-fbd8ea1ed','IfcOpenShell v0.7.0-fbd8ea1ed','');
+FILE_SCHEMA(('IFC4'));
+ENDSEC;
+DATA;
+#1=IFCPROPERTYSETTEMPLATE('1TLQmgUKf0I8Zi07bm9Jqn',$,'ePSet_ProjectedCRS','',.PSET_OCCURRENCEDRIVEN.,'IfcProject',(#2,#3,#4,#5,#6,#7));
+#2=IFCSIMPLEPROPERTYTEMPLATE('2cH53PtVT3v88uf_uGFblG',$,'Name','',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
+#3=IFCSIMPLEPROPERTYTEMPLATE('3JsReA6vXDqR7aNC$haRYW',$,'Description','',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
+#4=IFCSIMPLEPROPERTYTEMPLATE('0u0uEsT5HFtuX5GvozO9ba',$,'GeodeticDatum','',.P_SINGLEVALUE.,'IfcIdentifier',$,$,$,$,$,.READWRITE.);
+#5=IFCSIMPLEPROPERTYTEMPLATE('1JgEX9Fsf0$ggxYltdkqiY',$,'VerticalDatum','',.P_SINGLEVALUE.,'IfcIdentifier',$,$,$,$,$,.READWRITE.);
+#6=IFCSIMPLEPROPERTYTEMPLATE('3ahTZjYrD0MAOo5IH6QuGH',$,'MapProjection','',.P_SINGLEVALUE.,'IfcIdentifier',$,$,$,$,$,.READWRITE.);
+#7=IFCSIMPLEPROPERTYTEMPLATE('3hqJR2ghD0GAti7q4sXKj7',$,'MapZone','',.P_SINGLEVALUE.,'IfcIdentifier',$,$,$,$,$,.READWRITE.);
+#8=IFCPROPERTYSETTEMPLATE('1jGHTycOj0vA8xHfRl4TNs',$,'ePSet_MapConversion','',.PSET_OCCURRENCEDRIVEN.,'IfcProject',(#9,#10,#11,#12,#13,#15));
+#9=IFCSIMPLEPROPERTYTEMPLATE('0nxsULXo17JRrAvNteYtNR',$,'Eastings','',.P_SINGLEVALUE.,'IfcLengthMeasure',$,$,$,$,$,.READWRITE.);
+#10=IFCSIMPLEPROPERTYTEMPLATE('26RfaGJs5CqemN0Xin12XL',$,'Northings','',.P_SINGLEVALUE.,'IfcLengthMeasure',$,$,$,$,$,.READWRITE.);
+#11=IFCSIMPLEPROPERTYTEMPLATE('0ziCn3nZv3m850VEUwWH42',$,'OrthogonalHeight','',.P_SINGLEVALUE.,'IfcLengthMeasure',$,$,$,$,$,.READWRITE.);
+#12=IFCSIMPLEPROPERTYTEMPLATE('3d4BOt4In8WR119ms1SaAe',$,'XAxisAbscissa','',.P_SINGLEVALUE.,'IfcReal',$,$,$,$,$,.READWRITE.);
+#13=IFCSIMPLEPROPERTYTEMPLATE('1Q4Voqj2j84RQRI8l67m28',$,'XAxisOrdinate','',.P_SINGLEVALUE.,'IfcReal',$,$,$,$,$,.READWRITE.);
+#15=IFCSIMPLEPROPERTYTEMPLATE('0O1Hc0$XnDNOG_jPBmbW5r',$,'Scale','',.P_SINGLEVALUE.,'IfcReal',$,$,$,$,$,.READWRITE.);
+ENDSEC;
+END-ISO-10303-21;
@@ -1,214 +0,0 @@
-# BlenderBIM Add-on - OpenBIM Blender Add-on
-# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
-#
-# This file is part of BlenderBIM Add-on.
-#
-# BlenderBIM Add-on is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# BlenderBIM Add-on is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
-
-presets = {
-    "Basic": ["project", "search", "bcf", "attribute", "spatial", "pset", "qto"],
-    "Admin": [
-        "project",
-        "search",
-        "bcf",
-        "root",
-        "unit",
-        "model",
-        "georeference",
-        "context",
-        "drawing",
-        "misc",
-        "attribute",
-        "type",
-        "spatial",
-        "void",
-        "aggregate",
-        "geometry",
-        "cobie",
-        "resource",
-        "cost",
-        "sequence",
-        "group",
-        "system",
-        "structural",
-        "boundary",
-        "profile",
-        "material",
-        "style",
-        "layer",
-        "owner",
-        "pset",
-        "qto",
-        "classification",
-        "constraint",
-        "document",
-        "pset_template",
-        "clash",
-        "lca",
-        "csv",
-        "bimtester",
-        "diff",
-        "patch",
-        "covetool",
-        "augin",
-        "debug",
-    ],
-    "BIM Coordination": [
-        "project",
-        "search",
-        "bcf",
-        "root",
-        "unit",
-        "georeference",
-        "attribute",
-        "type",
-        "spatial",
-        "void",
-        "aggregate",
-        "owner",
-        "pset",
-        "qto",
-        "clash",
-        "csv",
-        "bimtester",
-        "diff",
-        "patch",
-        "debug",
-    ],
-    "Architecture": [
-        "project",
-        "search",
-        "bcf",
-        "root",
-        "unit",
-        "model",
-        "georeference",
-        "context",
-        "drawing",
-        "misc",
-        "attribute",
-        "type",
-        "spatial",
-        "void",
-        "aggregate",
-        "geometry",
-        "group",
-        "system",
-        "boundary",
-        "profile",
-        "material",
-        "style",
-        "layer",
-        "owner",
-        "pset",
-        "qto",
-        "classification",
-        "pset_template",
-        "clash",
-        "csv",
-    ],
-    "Structural Engineering": [
-        "project",
-        "search",
-        "bcf",
-        "root",
-        "unit",
-        "model",
-        "georeference",
-        "context",
-        "drawing",
-        "misc",
-        "attribute",
-        "type",
-        "spatial",
-        "void",
-        "aggregate",
-        "geometry",
-        "group",
-        "system",
-        "structural",
-        "boundary",
-        "profile",
-        "material",
-        "style",
-        "layer",
-        "owner",
-        "pset",
-        "qto",
-        "classification",
-        "pset_template",
-        "clash",
-        "csv",
-    ],
-    "MEP": [
-        "project",
-        "search",
-        "bcf",
-        "root",
-        "unit",
-        "model",
-        "georeference",
-        "context",
-        "drawing",
-        "misc",
-        "attribute",
-        "type",
-        "spatial",
-        "void",
-        "aggregate",
-        "geometry",
-        "group",
-        "system",
-        "boundary",
-        "profile",
-        "material",
-        "style",
-        "layer",
-        "owner",
-        "pset",
-        "qto",
-        "classification",
-        "pset_template",
-        "clash",
-        "csv",
-    ],
-    "Quantity Surveying": ["project", "search", "attribute", "spatial", "void", "pset", "qto", "classification", "csv"],
-    "Model Enrichment": [
-        "project",
-        "search",
-        "root",
-        "attribute",
-        "spatial",
-        "pset",
-        "qto",
-        "pset_template",
-        "csv",
-        "patch",
-    ],
-    "3D Visualisation": ["project", "search", "bcf", "attribute", "spatial", "pset", "qto"],
-    "4D Scheduling": ["project", "search", "attribute", "spatial", "resource", "cost", "sequence", "pset", "qto"],
-    "5D Cost Management": [
-        "project",
-        "search",
-        "attribute",
-        "spatial",
-        "resource",
-        "cost",
-        "sequence",
-        "pset",
-        "qto",
-        "lca",
-    ],
-    "Facility Management": ["project", "search", "attribute", "spatial", "cobie", "pset", "qto", "lca"],
-}
@@ -1,2 +0,0 @@
-Name,foo
-TransomThickness,500
@@ -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:
@@ -16,6 +16,7 @@
 # You should have received a copy of the GNU General Public License
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.

+import os
 import bpy
 import json
 import addon_utils
@@ -26,36 +27,22 @@ 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


+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):
-    # TODO Do we still need this, now that we are monitoring the undo redo objects?
    try:
        obj.name
    except:
+        # The object is invalid but somehow still has a callback. Clear all
+        # msgbus subscriptions to prevent useless further triggers.
+        bpy.msgbus.clear_by_owner(obj)
        return  # In case the object RNA is gone during an undo / redo operation
    # Blender names are up to 63 UTF-8 bytes
    if len(bytes(obj.name, "utf-8")) >= 63:
@@ -69,14 +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 = 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()


@@ -98,8 +98,8 @@ def update_bim_tool_props():
    if not obj:
        return
    mode = bpy.context.mode
-    current_tool = bpy.context.workspace.tools.from_space_view3d_mode(mode).idname
-    if current_tool != "bim.bim_tool":
+    current_tool = bpy.context.workspace.tools.from_space_view3d_mode(mode)
+    if not current_tool or current_tool.idname not in LIST_OF_TOOLS:
        return
    element = tool.Ifc.get_entity(obj)
    if not element:
@@ -107,6 +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
@@ -117,7 +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()

@@ -168,67 +177,42 @@ def refresh_ui_data():
        except AttributeError:
            pass

-
-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()
    IfcStore.relink_all_objects()


-@persistent
-def undo_pre(scene):
-    IfcStore.track_undo_redo_stack_object_map()
-
-
@persistent
 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()
-        purge_module_data()
-    IfcStore.track_undo_redo_stack_selected_objects()
-    IfcStore.reload_undo_redo_stack_objects()
-
-
-@persistent
-def redo_pre(scene):
-    IfcStore.track_undo_redo_stack_object_map()
+        IfcStore.undo(until_key=bpy.context.scene.BIMProperties.last_transaction)
+        refresh_ui_data()
+    tool.Ifc.rebuild_element_maps()


@persistent
 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()
-        purge_module_data()
-    IfcStore.track_undo_redo_stack_selected_objects()
-    IfcStore.reload_undo_redo_stack_objects()
-
-
-@persistent
-def ensureIfcExported(scene):
-    if IfcStore.get_file() and not bpy.context.scene.BIMProperties.ifc_file:
-        bpy.ops.export_ifc.bim("INVOKE_DEFAULT")
+        IfcStore.redo(until_key=bpy.context.scene.BIMProperties.last_transaction)
+        refresh_ui_data()
+    tool.Ifc.rebuild_element_maps()


 def get_application(ifc):
@@ -259,13 +243,137 @@ def get_application_version():
    )


+def viewport_shading_changed_callback(area):
+    shading = area.spaces.active.shading.type
+    if shading == "RENDERED":
+        bpy.context.scene.BIMStylesProperties.active_style_type = "External"
+
+
+if getattr(bpy.types, "SCENE_PT_scene"):
+
+    class Override_SCENE_PT_scene(bpy.types.SCENE_PT_scene):
+        bl_idname = "SCENE_PT_scene_override"
+
+        @classmethod
+        def poll(cls, context):
+            return tool.Blender.is_tab(context, "BLENDER")
+
+
+if getattr(bpy.types, "SCENE_PT_unit"):
+
+    class Override_SCENE_PT_unit(bpy.types.SCENE_PT_unit):
+        bl_idname = "SCENE_PT_unit_override"
+
+        @classmethod
+        def poll(cls, context):
+            return tool.Blender.is_tab(context, "BLENDER")
+
+
+if getattr(bpy.types, "SCENE_PT_physics"):
+
+    class Override_SCENE_PT_physics(bpy.types.SCENE_PT_physics):
+        bl_idname = "SCENE_PT_physics_override"
+
+        @classmethod
+        def poll(cls, context):
+            return tool.Blender.is_tab(context, "BLENDER")
+
+
+if getattr(bpy.types, "SCENE_PT_rigid_body_world"):
+
+    class Override_SCENE_PT_rigid_body_world(bpy.types.SCENE_PT_rigid_body_world):
+        bl_idname = "SCENE_PT_rigid_body_world_override"
+
+        @classmethod
+        def poll(cls, context):
+            return tool.Blender.is_tab(context, "BLENDER")
+
+
+if getattr(bpy.types, "SCENE_PT_audio"):
+
+    class Override_SCENE_PT_audio(bpy.types.SCENE_PT_audio):
+        bl_idname = "SCENE_PT_audio_override"
+
+        @classmethod
+        def poll(cls, context):
+            return tool.Blender.is_tab(context, "BLENDER")
+
+
+if getattr(bpy.types, "SCENE_PT_keying_sets"):
+
+    class Override_SCENE_PT_keying_sets(bpy.types.SCENE_PT_keying_sets):
+        bl_idname = "SCENE_PT_keying_sets_override"
+
+        @classmethod
+        def poll(cls, context):
+            return tool.Blender.is_tab(context, "BLENDER")
+
+
+if getattr(bpy.types, "SCENE_PT_custom_props"):
+
+    class Override_SCENE_PT_custom_props(bpy.types.SCENE_PT_custom_props):
+        bl_idname = "SCENE_PT_custom_props_override"
+
+        @classmethod
+        def poll(cls, context):
+            return tool.Blender.is_tab(context, "BLENDER")
+
+
@persistent
-def setDefaultProperties(scene):
+def load_post(scene):
    global global_subscription_owner
    active_object_key = bpy.types.LayerObjects, "active"
    bpy.msgbus.subscribe_rna(
        key=active_object_key, owner=global_subscription_owner, args=(), notify=active_object_callback
    )
+
+    # subscribe to changes in viewport shading mode
+    # NOTE: couldn't find a way to make it work for new areas too
+    # it starts working for them after blender restart though
+    for screen in bpy.data.screens:
+        for area in screen.areas:
+            if area.type != "VIEW_3D":
+                continue
+            shading = area.spaces.active.shading
+            key = shading.path_resolve("type", False)
+
+            bpy.msgbus.subscribe_rna(
+                key=key, owner=global_subscription_owner, args=(area,), notify=viewport_shading_changed_callback
+            )
+
    ifcopenshell.api.owner.settings.get_user = lambda ifc: core_owner.get_user(tool.Owner)
    ifcopenshell.api.owner.settings.get_application = get_application
    AuthoringData.type_thumbnails = {}
+
+    if bpy.context.preferences.addons["blenderbim"].preferences.should_setup_workspace:
+        if "BIM" in bpy.data.workspaces:
+            bpy.context.window.workspace = bpy.data.workspaces["BIM"]
+        else:
+            bpy.ops.workspace.append_activate(idname="BIM", filepath=os.path.join(cwd, "data", "workspace.blend"))
+
+        # To improve usability for new users, we hijack the scene properties
+        # tab. We override default scene properties panels with our own poll
+        # to hide them unless the user has chosen to view Blender properties.
+        for panel in [
+            "SCENE_PT_scene",
+            "SCENE_PT_unit",
+            "SCENE_PT_physics",
+            "SCENE_PT_rigid_body_world",
+            "SCENE_PT_audio",
+            "SCENE_PT_keying_sets",
+            "SCENE_PT_custom_props",
+        ]:
+            if getattr(bpy.types, panel, None):
+                try:
+                    bpy.utils.register_class(globals()[f"Override_{panel}"])
+                    bpy.utils.unregister_class(getattr(bpy.types, panel))
+                except:
+                    pass
+
+    # https://blender.stackexchange.com/questions/140644/how-can-make-the-state-of-a-boolean-property-relative-to-the-3d-view-area
+    for screen in bpy.data.screens:
+        if len(screen.BIMAreaProperties) == 20:
+            continue
+        screen.BIMAreaProperties.clear()
+        for i in range(20):  # 20 is an arbitrary value of split areas
+            screen.BIMAreaProperties.add()
@@ -273,6 +273,84 @@ def convert_property_group_from_si(property_group, skip_props=()):
        setattr(property_group, prop_name, prop_value)


+def draw_filter(layout, props, data, module):
+    if not data.is_loaded:
+        data.load()
+
+    sprops = bpy.context.scene.BIMSearchProperties
+
+    if tool.Ifc.get():
+        row = layout.row(align=True)
+        row.label(text=f"{len(data.data['saved_searches'])} Saved Searches")
+
+        if data.data["saved_searches"]:
+            row.operator("bim.load_search", text="", icon="IMPORT").module = module
+        row.operator("bim.save_search", text="", icon="EXPORT").module = module
+
+    row = layout.row(align=True)
+    row.operator("bim.add_filter_group", text="Add Search Group", icon="ADD").module = module
+    row.operator("bim.edit_filter_query", text="", icon="FILTER").module = module
+
+    for i, filter_group in enumerate(props.filter_groups):
+        box = layout.box()
+
+        row = box.row(align=True)
+        row.prop(sprops, "facet", text="")
+        op = row.operator("bim.add_filter", text="Add Filter", icon="ADD")
+        op.type = sprops.facet
+        op.index = i
+        op.module = module
+
+        for j, ifc_filter in enumerate(filter_group.filters):
+            if ifc_filter.type == "entity":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "value", text="", icon="FILE_3D")
+            elif ifc_filter.type == "attribute":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "name", text="", icon="COPY_ID")
+                row.prop(ifc_filter, "value", text="")
+            elif ifc_filter.type == "type":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "value", text="", icon="FILE_VOLUME")
+            elif ifc_filter.type == "material":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "value", text="", icon="MATERIAL")
+            elif ifc_filter.type == "property":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "pset", text="", icon="PROPERTIES")
+                row.prop(ifc_filter, "name", text="")
+                row.prop(ifc_filter, "value", text="")
+            elif ifc_filter.type == "classification":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "value", text="", icon="OUTLINER")
+            elif ifc_filter.type == "location":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "value", text="", icon="PACKAGE")
+            elif ifc_filter.type == "query":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "name", text="", icon="POINTCLOUD_DATA")
+                row.prop(ifc_filter, "value", text="")
+            elif ifc_filter.type == "instance":
+                row = box.row(align=True)
+                row.prop(ifc_filter, "value", text="", icon="GRIP")
+                op = row.operator("bim.select_filter_elements", text="", icon="EYEDROPPER")
+                op.group_index = i
+                op.index = j
+                op.module = module
+            op = row.operator("bim.remove_filter", text="", icon="X")
+            op.group_index = i
+            op.index = j
+            op.module = module
+
+        row = box.row()
+        op = row.operator("bim.remove_filter_group", icon="X")
+        op.index = i
+        op.module = module
+
+
+# TODO this should move into ifcopenshell.util
+
+
 class IfcHeaderExtractor:
    def __init__(self, filepath: str):
        self.filepath = filepath
@@ -284,6 +362,8 @@ class IfcHeaderExtractor:
                return self.extract_ifc_spf(ifc_file)
        elif extension.lower() == "ifczip":
            return self.extract_ifc_zip()
+        elif extension.lower() == "ifcsqlite":
+            return {}  # TODO

    def extract_ifc_spf(self, ifc_file):
        # https://www.steptools.com/stds/step/IS_final_p21e3.html#clause-8
@@ -26,6 +26,7 @@ import ifcopenshell
 import blenderbim.bim.handler
 import blenderbim.tool as tool
 from pathlib import Path
+from blenderbim.tool.brick import BrickStore


 class IfcStore:
@@ -43,9 +44,6 @@ class IfcStore:
    classification_file = None
    library_path = ""
    library_file = None
-    element_listeners = set()
-    undo_redo_stack_objects = set()
-    undo_redo_stack_object_names = {}
    current_transaction = ""
    last_transaction = ""
    history = []
@@ -120,6 +118,8 @@ class IfcStore:

    @staticmethod
    def load_file(path):
+        if not os.path.isfile(path):
+            return
        extension = path.split(".")[-1]
        if extension.lower() == "ifczip":
            with tempfile.TemporaryDirectory() as unzipped_path:
@@ -130,7 +130,9 @@ class IfcStore:
                    return
        elif extension.lower() == "ifcxml":
            IfcStore.file = ifcopenshell.file(ifcopenshell.ifcopenshell_wrapper.parse_ifcxml(path))
-        elif extension.lower() == "ifc":
+        elif bpy.context.scene.BIMProjectProperties.should_stream:
+            IfcStore.file = ifcopenshell.open(path, should_stream=True)
+        else:
            IfcStore.file = ifcopenshell.open(path)

    @staticmethod
@@ -156,96 +158,6 @@ class IfcStore:
            return
        return obj

-    @staticmethod
-    def add_element_listener(callback):
-        IfcStore.element_listeners.add(callback)
-
-    @staticmethod
-    def track_undo_redo_stack_object_map():
-        """Keeps track of currently mapped object names, typically during undo and redo
-
-        When any Blender object is stored outside a Blender PointerProperty, such as
-        in a regular Python list, there is the likely probability that the object
-        will be invalidated when undo or redo occurs. Object invalidation seems to
-        occur whenever an object is affected during an operation.
-
-        For example, if an operator deletes a modifier on o1, then o1 will be invalidated.
-        """
-        for key, value in IfcStore.id_map.items():
-            try:
-                IfcStore.undo_redo_stack_object_names[key] = value.name
-            except:
-                continue
-
-    @staticmethod
-    def track_undo_redo_stack_selected_objects():
-        """Keeps track of selected object names, typically during undo and redo
-
-        When any Blender object is stored outside a Blender PointerProperty, such as
-        in a regular Python list, there is the likely probability that the object
-        will be invalidated when undo or redo occurs. Object invalidation seems to
-        occur for selected objects either pre/post undo/redo event, including
-        selected objects for consecutive undo/redos, and all children. This is
-        important because selected objects are often deleted from the scene.
-
-        So if I first select o1, then o2, then o3, then press undo, o3 will be
-        invalidated. If instead I press undo twice, o3 and o2 will be invalidated.
-        """
-        if bpy.context.active_object:
-            objects = set([o.name for o in bpy.context.selected_objects + [bpy.context.active_object]])
-            objects.update([o.name for o in bpy.context.active_object.children])
-        else:
-            objects = set([o.name for o in bpy.context.selected_objects])
-        for obj in bpy.context.selected_objects:
-            objects.update([o.name for o in obj.children])
-        IfcStore.undo_redo_stack_objects |= objects
-
-    @staticmethod
-    def reload_undo_redo_stack_objects():
-        """Reloads any invalidated objects after undo or redo
-
-        After an undo or redo operation, objects may have been invalidated in
-        our id_map and guid_map. Invalidated objects are typically those that
-        have been manipulated or deleted. This checks the cache of mapped and
-        selected objects prior to the operation and ensures that if the object
-        is invalidated, they are reloaded based on the object name that was
-        tracked prior to the undo / redo.
-        """
-        file = IfcStore.get_file()
-        if not file:
-            return
-
-        # First, reload objects that were selected or active
-        for name in IfcStore.undo_redo_stack_objects:
-            obj = bpy.data.objects.get(name)
-            if not obj:
-                continue
-            if not obj.BIMObjectProperties.ifc_definition_id:
-                continue
-            element = file.by_id(obj.BIMObjectProperties.ifc_definition_id)
-            data = {"id": element.id(), "obj": obj.name}
-            if hasattr(element, "GlobalId"):
-                data["guid"] = element.GlobalId
-            IfcStore.commit_link_element(data)
-
-        # Scan for any straggling invalidated objects which were indirectly affected and reload them too.
-        for key, value in IfcStore.id_map.items():
-            try:
-                value.name
-            except:
-                # TODO not so sure about this obj_name check
-                obj_name = IfcStore.undo_redo_stack_object_names.get(key, None)
-                if not obj_name:
-                    continue
-                obj = bpy.data.objects.get(obj_name)
-                if not obj or not obj.BIMObjectProperties.ifc_definition_id:
-                    continue
-                element = file.by_id(obj.BIMObjectProperties.ifc_definition_id)
-                data = {"id": element.id(), "obj": obj.name}
-                if hasattr(element, "GlobalId"):
-                    data["guid"] = element.GlobalId
-                IfcStore.commit_link_element(data)
-
    @staticmethod
    def relink_all_objects():
        if not IfcStore.get_file():
@@ -278,6 +190,13 @@ class IfcStore:

    @staticmethod
    def link_element(element, obj):
+        # Please use tool.Ifc.link() instead of this method. We want to
+        # refactor this class and deprecate usage of IfcStore in favour of
+        # tools.
+        if not isinstance(obj, (bpy.types.Object, bpy.types.Material)):
+            obj.BIMMeshProperties.ifc_definition_id = element.id()
+            return
+
        existing_obj = IfcStore.id_map.get(element.id(), None)
        if existing_obj == obj:
            return
@@ -301,11 +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)
-
-        for listener in IfcStore.element_listeners:
-            listener(element, obj)
+            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}
@@ -327,10 +244,13 @@ class IfcStore:
        IfcStore.id_map[data["id"]] = obj
        if "guid" in data:
            IfcStore.guid_map[data["guid"]] = obj
-        blenderbim.bim.handler.subscribe_to(obj, "mode", blenderbim.bim.handler.mode_callback)
        blenderbim.bim.handler.subscribe_to(obj, "name", blenderbim.bim.handler.name_callback)
        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, "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.

@@ -396,24 +316,33 @@ class IfcStore:
            )

    @staticmethod
-    def execute_ifc_operator(operator, context):
+    def execute_ifc_operator(operator, context, is_invoke=False):
        is_top_level_operator = not bool(IfcStore.current_transaction)

        if is_top_level_operator:
            IfcStore.begin_transaction(operator)
-            IfcStore.get_file().begin_transaction()
+            if tool.Ifc.get():
+                tool.Ifc.get().begin_transaction()
+            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)
        else:
            operator.transaction_key = IfcStore.current_transaction

-        result = getattr(operator, "_execute")(context)
+        if is_invoke:
+            result = getattr(operator, "_invoke")(context, None)
+        else:
+            result = getattr(operator, "_execute")(context)

        if is_top_level_operator:
-            IfcStore.get_file().end_transaction()
-            IfcStore.add_transaction_operation(
-                operator, rollback=lambda d: IfcStore.get_file().undo(), commit=lambda d: IfcStore.get_file().redo()
-            )
+            if tool.Ifc.get():
+                tool.Ifc.get().end_transaction()
+                IfcStore.add_transaction_operation(
+                    operator, rollback=lambda d: tool.Ifc.get().undo(), commit=lambda d: tool.Ifc.get().redo()
+                )
+            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()

@@ -421,8 +350,6 @@ class IfcStore:

    @staticmethod
    def begin_transaction(operator):
-        IfcStore.undo_redo_stack_objects = set()
-        IfcStore.undo_redo_stack_object_names = {}
        IfcStore.current_transaction = str(uuid.uuid4())
        operator.transaction_key = IfcStore.current_transaction

@@ -448,19 +375,35 @@ class IfcStore:
        IfcStore.future = []

    @staticmethod
-    def undo():
+    def undo(until_key=None):
+        BrickStore.undo()
        if not IfcStore.history:
            return
-        event = IfcStore.history.pop()
-        for transaction in event["operations"][::-1]:
-            transaction["rollback"](transaction["data"])
-        IfcStore.future.append(event)
+
+        while IfcStore.history:
+            if IfcStore.history[-1]["key"] == until_key:
+                return
+
+            event = IfcStore.history.pop()
+            for transaction in event["operations"][::-1]:
+                transaction["rollback"](transaction["data"])
+            IfcStore.future.append(event)

    @staticmethod
-    def redo():
+    def redo(until_key=None):
+        BrickStore.redo()
+
        if not IfcStore.future:
            return
-        event = IfcStore.future.pop()
-        for transaction in event["operations"]:
-            transaction["commit"](transaction["data"])
-        IfcStore.history.append(event)
+
+        has_encountered_key = False
+        while IfcStore.future:
+            if has_encountered_key and IfcStore.future[-1]["key"] != until_key:
+                return
+            elif IfcStore.future[-1]["key"] == until_key:
+                has_encountered_key = True
+
+            event = IfcStore.future.pop()
+            for transaction in event["operations"]:
+                transaction["commit"](transaction["data"])
+            IfcStore.history.append(event)
@@ -20,10 +20,9 @@ import os
 import re
 import bpy
 import time
+import json
 import bmesh
-import shutil
 import logging
-import threading
 import mathutils
 import numpy as np
 import multiprocessing
@@ -31,7 +30,6 @@ import ifcopenshell
 import ifcopenshell.geom
 import ifcopenshell.util.unit
 import ifcopenshell.util.element
-import ifcopenshell.util.selector
 import ifcopenshell.util.geolocation
 import blenderbim.tool as tool
 from itertools import chain, accumulate
@@ -39,19 +37,10 @@ from blenderbim.bim.ifc import IfcStore
 from blenderbim.bim.module.drawing.prop import ANNOTATION_TYPES_DATA


-class FileCopy(threading.Thread):
-    def __init__(self, file_path, destination):
-        threading.Thread.__init__(self)
-        self.file_path = file_path
-        self.destination = destination
-
-    def run(self):
-        shutil.copy(self.file_path, self.destination)
-
-
 class MaterialCreator:
    def __init__(self, ifc_import_settings, ifc_importer):
        self.mesh = None
+        self.obj = None
        self.materials = {}
        self.styles = {}
        self.parsed_meshes = set()
@@ -60,6 +49,8 @@ class MaterialCreator:

    def create(self, element, obj, mesh):
        self.mesh = mesh
+        # as ifcopenshell triangulates the mesh, we need to merge it to quads again
+        self.obj = obj
        if (hasattr(element, "Representation") and not element.Representation) or (
            hasattr(element, "RepresentationMaps") and not element.RepresentationMaps
        ):
@@ -132,21 +123,70 @@ class MaterialCreator:
            return
        for style_id in style_ids:
            material = self.styles[style_id]
+            ifc_coordinate_id = material.BIMMaterialProperties.ifc_coordinate_id
+            if ifc_coordinate_id != 0:
+                self.load_texture_map(tool.Ifc.get().by_id(ifc_coordinate_id))
            if self.mesh.materials.find(material.name) == -1:
                self.mesh.materials.append(material)
        return True

+    def load_texture_map(self, coordinates):
+        # Get a BMesh representation
+        bm = bmesh.new()
+        bm.from_mesh(self.mesh)
+        uv_layer = bm.loops.layers.uv.verify()
+
+        # remap the faceset CoordList index to the vertices in blender mesh
+        coordinates_remap = []
+        for co in coordinates.MappedTo.Coordinates.CoordList:
+            co = mathutils.Vector(co)
+            index = next(v.index for v in bm.verts if (v.co - co).length_squared < 1e-5)
+            coordinates_remap.append(index)
+
+        faces_remap = None
+        texture_map = None
+        if coordinates.is_a("IfcIndexedPolygonalTextureMap"):
+            faces_remap = [
+                [coordinates_remap[i - 1] for i in tex_coord_index.TexCoordsOf.CoordIndex]
+                for tex_coord_index in coordinates.TexCoordIndices
+            ]
+            texture_map = [tex_coord_index.TexCoordIndex for tex_coord_index in coordinates.TexCoordIndices]
+        elif coordinates.is_a("IfcIndexedTriangleTextureMap"):
+            faces_remap = [
+                [coordinates_remap[i - 1] for i in triangle_face] for triangle_face in coordinates.MappedTo.CoordIndex
+            ]
+            texture_map = coordinates.TexCoordIndex
+
+        # apply uv to each face
+        for bface in bm.faces:
+            face = [loop.vert.index for loop in bface.loops]
+            # find the corresponding TexCoordIndex by matching ifc faceset with blender face
+            # remap TexCoordIndex as the loop start may different from blender face
+            texCoordIndex = next(
+                [tex_coord_index[face_remap.index(i)] for i in face]
+                for tex_coord_index, face_remap in zip(texture_map, faces_remap)
+                if all(i in face_remap for i in face)
+            )
+            # apply uv to each loop
+            for loop, i in zip(bface.loops, texCoordIndex):
+                loop[uv_layer].uv = coordinates.TexCoords.TexCoordsList[i - 1]
+
+        # Finish up, write the bmesh back to the mesh
+        bm.to_mesh(self.mesh)
+        bm.free()
+
    def assign_material_slots_to_faces(self):
        if "ios_materials" not in self.mesh or not self.mesh["ios_materials"]:
            return
        if len(self.mesh.materials) == 1:
            return
        material_to_slot = {}
-        for i, material in enumerate(self.mesh["ios_materials"]):
-            slot_index = self.mesh.materials.find(self.styles[material].name)
-            material_to_slot[i] = slot_index

        if len(self.mesh.polygons) == len(self.mesh["ios_material_ids"]):
+            for i, material in enumerate(self.mesh["ios_materials"]):
+                slot_index = self.mesh.materials.find(self.styles[material].name)
+                material_to_slot[i] = slot_index
+
            material_index = [
                (material_to_slot[mat_id] if mat_id != -1 else 0) for mat_id in self.mesh["ios_material_ids"]
            ]
@@ -178,16 +218,16 @@ 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 = {}
@@ -226,6 +266,8 @@ class IfcImporter:
        self.profile_code("Calculate unit scale")
        self.calculate_model_offset()
        self.profile_code("Calculate model offset")
+        self.predict_dense_mesh()
+        self.profile_code("Predict dense mesh")
        self.set_units()
        self.profile_code("Set units")
        self.create_project()
@@ -269,6 +311,8 @@ class IfcImporter:
            self.profile_code("Merging by colour")
        self.set_default_context()
        self.profile_code("Setting default context")
+        self.setup_viewport_camera()
+        self.setup_arrays()
        self.update_progress(100)
        bpy.context.window_manager.progress_end()

@@ -299,15 +343,17 @@ 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)
+            self.settings_body_2d.set_context_ids(self.body_contexts)
        # Annotation ContextType is to accommodate broken Revit files
        # See https://github.com/Autodesk/revit-ifc/issues/187
        self.plan_contexts = [
@@ -316,7 +362,7 @@ 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
@@ -327,13 +373,19 @@ class IfcImporter:
            if isinstance(self.elements, set):
                self.elements = list(self.elements)
            # TODO: enable filtering for annotations
-            self.annotations = set([a for a in self.file.by_type("IfcAnnotation") if not a.HasAssignments])
        else:
            if self.file.schema in ("IFC2X3", "IFC4"):
                self.elements = self.file.by_type("IfcElement") + self.file.by_type("IfcProxy")
            else:
                self.elements = self.file.by_type("IfcElement")
-            self.annotations = set([a for a in self.file.by_type("IfcAnnotation") if not a.HasAssignments])
+
+        drawing_groups = [g for g in self.file.by_type("IfcGroup") if g.ObjectType == "DRAWING"]
+        drawing_annotations = set()
+        for drawing_group in drawing_groups:
+            for rel in drawing_group.IsGroupedBy:
+                drawing_annotations.update(rel.RelatedObjects)
+        self.annotations = set([a for a in self.file.by_type("IfcAnnotation")])
+        self.annotations -= drawing_annotations

        self.elements = [e for e in self.elements if not e.is_a("IfcFeatureElement")]
        if self.ifc_import_settings.is_coordinating:
@@ -347,7 +399,8 @@ class IfcImporter:
            self.element_types = set(self.file.by_type("IfcTypeProduct"))

        if self.ifc_import_settings.has_filter and self.ifc_import_settings.should_filter_spatial_elements:
-            self.spatial_elements = self.get_spatial_elements_filtered_by_elements(self.elements)
+            filtered_elements = self.elements | set(self.file.by_type("IfcGrid"))
+            self.spatial_elements = self.get_spatial_elements_filtered_by_elements(filtered_elements)
        else:
            if self.file.schema == "IFC2X3":
                self.spatial_elements = set(self.file.by_type("IfcSpatialStructureElement"))
@@ -361,11 +414,13 @@ class IfcImporter:
            while True:
                results.add(spatial_element)
                spatial_element = ifcopenshell.util.element.get_aggregate(spatial_element)
-                if not spatial_element or spatial_element.is_a("IfcContext"):
+                if not spatial_element or spatial_element.is_a() in ("IfcProject", "IfcProjectLibrary"):
                    break
        return results

    def parse_native_elements(self):
+        if not self.ifc_import_settings.should_load_geometry:
+            return
        for element in self.elements:
            if self.is_native(element):
                self.native_elements.add(element)
@@ -410,19 +465,19 @@ class IfcImporter:
            return True

    def is_native_swept_disk_solid(self, element, representations):
-        # detect BBIM Railings to represent them with meshes and not curves
-        if tool.Pset.get_element_pset(element, "BBIM_Railing"):
-            return False
-
        for representation in representations:
            items = representation["raw"].Items or []  # Be forgiving of invalid IFCs because Revit :(
            if len(items) == 1 and items[0].is_a("IfcSweptDiskSolid"):
+                if tool.Blender.Modifier.is_railing(element):
+                    return False
                return True
            elif len(items) and (  # See #2508 why we accommodate for invalid IFCs here
                items[0].is_a("IfcSweptDiskSolid")
                and len({i.is_a() for i in items}) == 1
                and len({i.Radius for i in items}) == 1
            ):
+                if tool.Blender.Modifier.is_railing(element):
+                    return False
                return True
        return False

@@ -449,6 +504,26 @@ class IfcImporter:
                        products.extend(self.get_products_from_shape_representation(inverse_element))
        return products

+    def predict_dense_mesh(self):
+        threshold = 10000  # Just from experience.
+
+        faces = [len(e.CfsFaces) for e in self.file.by_type("IfcClosedShell")]
+        if faces and max(faces) > threshold:
+            self.ifc_import_settings.should_use_native_meshes = True
+            return
+
+        if self.file.schema == "IFC2X3":
+            return
+
+        faces = [len(e.Faces) for e in self.file.by_type("IfcPolygonalFaceSet")]
+        if faces and max(faces) > threshold:
+            self.ifc_import_settings.should_use_native_meshes = True
+            return
+
+        faces = [len(e.CoordIndex) for e in self.file.by_type("IfcTriangulatedFaceSet")]
+        if faces and max(faces) > threshold:
+            self.ifc_import_settings.should_use_native_meshes = True
+
    def calculate_model_offset(self):
        props = bpy.context.scene.BIMGeoreferenceProperties
        if props.has_blender_offset:
@@ -515,7 +590,13 @@ 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])
@@ -577,6 +658,8 @@ class IfcImporter:
                    return result

    def create_grids(self):
+        if not self.ifc_import_settings.should_load_geometry:
+            return
        grids = self.file.by_type("IfcGrid")
        for grid in grids:
            shape = None
@@ -585,7 +668,7 @@ 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)
@@ -604,7 +687,7 @@ 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:
@@ -622,34 +705,37 @@ class IfcImporter:

    def create_element_type(self, element):
        self.ifc_import_settings.logger.info("Creating object %s", element)
-        representation = ifcopenshell.util.representation.get_representation(element, "Model", "Body", "MODEL_VIEW")
-        if not representation:
-            representation = ifcopenshell.util.representation.get_representation(element, "Plan", "Annotation")
-        if not representation:
-            representation = ifcopenshell.util.representation.get_representation(element, "Model", "Annotation")
        mesh = None
-        if representation:
-            mesh_name = "{}/{}".format(representation.ContextOfItems.id(), representation.id())
-            mesh = self.meshes.get(mesh_name)
-            if mesh is None:
-                shape = None
-                try:
-                    shape = ifcopenshell.geom.create_shape(self.settings, representation)
-                except:
+        if self.ifc_import_settings.should_load_geometry:
+            representation = ifcopenshell.util.representation.get_representation(element, "Model", "Body", "MODEL_VIEW")
+            if not representation:
+                representation = ifcopenshell.util.representation.get_representation(element, "Plan", "Annotation")
+            if not representation:
+                representation = ifcopenshell.util.representation.get_representation(element, "Model", "Annotation")
+            if representation:
+                mesh_name = "{}/{}".format(representation.ContextOfItems.id(), representation.id())
+                mesh = self.meshes.get(mesh_name)
+                if mesh is None:
+                    shape = None
                    try:
-                        shape = ifcopenshell.geom.create_shape(self.settings_2d, representation)
+                        shape = ifcopenshell.geom.create_shape(self.settings, representation)
                    except:
-                        self.ifc_import_settings.logger.error("Failed to generate shape for %s", element)
-                if shape:
-                    mesh = self.create_mesh(element, shape)
-                    tool.Loader.link_mesh(shape, mesh)
-                    self.meshes[mesh_name] = mesh
+                        try:
+                            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:
+                        mesh = self.create_mesh(element, shape)
+                        tool.Loader.link_mesh(shape, mesh)
+                        self.meshes[mesh_name] = mesh
        obj = bpy.data.objects.new(tool.Loader.get_name(element), mesh)
        self.link_element(element, obj)
        self.material_creator.create(element, obj, mesh)
        self.type_products[element.GlobalId] = obj

    def create_native_elements(self):
+        if not self.ifc_import_settings.should_load_geometry:
+            return
        progress = 0
        checkpoint = time.time()
        total = len(self.native_elements)
@@ -678,7 +764,7 @@ class IfcImporter:
                    mesh = self.create_native_faceted_brep(element, mesh_name)
                elif native_data["type"] == "IfcFaceBasedSurfaceModel":
                    mesh = self.create_native_faceted_brep(element, mesh_name)
-                mesh.BIMMeshProperties.ifc_definition_id = representation.id()
+                tool.Ifc.link(representation, mesh)
                mesh.name = mesh_name
                self.meshes[mesh_name] = mesh
            self.create_product(element, mesh=mesh)
@@ -691,21 +777,76 @@ class IfcImporter:
        self.create_generic_elements(self.elements)

    def create_generic_elements(self, elements):
+        if isinstance(self.file, ifcopenshell.sqlite):
+            return self.create_generic_sqlite_elements(elements)
+
        # Based on my experience in viewing BIM models, representations are prioritised as follows:
        # 1. 3D Body, 2. 2D Body, 3. 2D Plans / annotations, 4. Point clouds, 5. No representation
        # If an element has a representation that doesn't follow 1, 2, 3, or 4, it will not show by default.
        # The user can load them later if they want to view them.
-        products = self.create_products(elements)
-        elements -= products
-        products = self.create_products(elements, settings=self.settings_curve)
-        elements -= products
-        products = self.create_products(elements, settings=self.settings_2d)
-        elements -= products
-        products = self.create_pointclouds(elements)
-        elements -= products
-        for element in elements:
+        if self.ifc_import_settings.should_load_geometry:
+            products = self.create_products(elements)
+            elements -= products
+            products = self.create_products(elements, settings=self.settings_body_2d)
+            elements -= products
+            products = self.create_products(elements, settings=self.settings_plan_2d)
+            elements -= products
+            products = self.create_pointclouds(elements)
+            elements -= products
+
+        total = len(elements)
+        for i, element in enumerate(elements):
+            if i % 250 == 0:
+                print("{} / {} elements processed ...".format(i, total))
            self.create_product(element)

+    def create_generic_sqlite_elements(self, elements):
+        self.geometry_cache = self.file.get_geometry([e.id() for e in elements])
+        for geometry_id, geometry in self.geometry_cache["geometry"].items():
+            mesh_name = tool.Loader.get_mesh_name(type("Geometry", (), {"id": geometry_id}))
+            mesh = bpy.data.meshes.new(mesh_name)
+
+            verts = geometry["verts"]
+            mesh["has_cartesian_point_offset"] = False
+
+            if geometry["faces"]:
+                num_vertices = len(verts) // 3
+                total_faces = len(geometry["faces"])
+                loop_start = range(0, total_faces, 3)
+                num_loops = total_faces // 3
+                loop_total = [3] * num_loops
+                num_vertex_indices = len(geometry["faces"])
+
+                mesh.vertices.add(num_vertices)
+                mesh.vertices.foreach_set("co", verts)
+                mesh.loops.add(num_vertex_indices)
+                mesh.loops.foreach_set("vertex_index", geometry["faces"])
+                mesh.polygons.add(num_loops)
+                mesh.polygons.foreach_set("loop_start", loop_start)
+                mesh.polygons.foreach_set("loop_total", loop_total)
+                mesh.update()
+            else:
+                e = geometry["edges"]
+                v = verts
+                vertices = [[v[i], v[i + 1], v[i + 2]] for i in range(0, len(v), 3)]
+                edges = [[e[i], e[i + 1]] for i in range(0, len(e), 2)]
+                mesh.from_pydata(vertices, edges, [])
+
+            mesh["ios_materials"] = geometry["materials"]
+            mesh["ios_material_ids"] = geometry["material_ids"]
+            self.meshes[mesh_name] = mesh
+
+        total = len(elements)
+        for i, element in enumerate(elements):
+            if i % 250 == 0:
+                print("{} / {} elements processed ...".format(i, total))
+            mesh = None
+            geometry_id = self.geometry_cache["shapes"][element.id()]["geometry"]
+            if geometry_id:
+                mesh_name = tool.Loader.get_mesh_name(type("Geometry", (), {"id": geometry_id}))
+                mesh = self.meshes.get(mesh_name)
+            self.create_product(element, mesh=mesh)
+
    def create_products(self, products, settings=None):
        if settings is None:
            settings = self.settings
@@ -783,10 +924,10 @@ 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):
@@ -823,7 +964,7 @@ class IfcImporter:
            return None

        for representation in representations:
-            if representation.RepresentationType == "PointCloud":
+            if representation.RepresentationType in ("PointCloud", "Point"):
                return representation

            elif self.file.schema == "IFC2X3" and representation.RepresentationType == "GeometricSet":
@@ -852,13 +993,17 @@ class IfcImporter:
        return result

    def create_pointcloud(self, product, representation):
-        placement_matrix = ifcopenshell.util.placement.get_local_placement(product.ObjectPlacement)
+        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)

@@ -868,6 +1013,7 @@ class IfcImporter:
        mesh_name = f"{representation.ContextOfItems.id()}/{representation.id()}"
        mesh = bpy.data.meshes.new(mesh_name)
        mesh.from_pydata(vertex_list, [], [])
+        tool.Ifc.link(representation, mesh)

        obj = bpy.data.objects.new("{}/{}".format(product.is_a(), product.Name), mesh)
        self.set_matrix_world(obj, self.apply_blender_offset_to_matrix_world(obj, placement_matrix))
@@ -1273,12 +1419,21 @@ class IfcImporter:
                last_obj = obj
        if not last_obj:
            return
+
+        # temporarily unhide types collection to make sure all objects will be cleaned
+        project_collection = bpy.context.view_layer.layer_collection.children[self.project["blender"].name]
+        types_collection = project_collection.children[self.type_collection.name]
+        types_collection.hide_viewport = False
        bpy.context.view_layer.objects.active = last_obj
+
        context_override = {}
        bpy.ops.object.editmode_toggle(context_override)
        bpy.ops.mesh.tris_convert_to_quads(context_override)
        bpy.ops.mesh.normals_make_consistent(context_override)
        bpy.ops.object.editmode_toggle(context_override)
+
+        types_collection.hide_viewport = True
+        bpy.context.view_layer.objects.active = last_obj
        IfcStore.edited_objs.clear()

    def load_file(self):
@@ -1342,14 +1497,11 @@ class IfcImporter:
        obj.BIMObjectProperties.collection = self.project["blender"]

    def create_collections(self):
-        if self.ifc_import_settings.collection_mode == "DECOMPOSITION":
-            self.create_decomposition_collections()
-        elif self.ifc_import_settings.collection_mode == "SPATIAL_DECOMPOSITION":
-            self.create_spatial_decomposition_collections()
-
-    def create_decomposition_collections(self):
        self.create_spatial_decomposition_collections()
-        self.create_aggregate_collections()
+        if self.ifc_import_settings.collection_mode == "DECOMPOSITION":
+            self.create_aggregate_collections()
+        elif self.ifc_import_settings.collection_mode == "SPATIAL_DECOMPOSITION":
+            pass

    def create_spatial_decomposition_collections(self):
        for rel_aggregate in self.project["ifc"].IsDecomposedBy or []:
@@ -1361,27 +1513,8 @@ class IfcImporter:
            self.create_spatial_decomposition_collection(self.project["blender"], orphaned_spaces)
            orphaned_spaces = [e for e in self.spatial_elements if e.GlobalId not in self.collections]

-        self.create_views_collection()
-        self.create_type_collection()
-
-    def create_type_collection(self):
-        for collection in self.project["blender"].children:
-            if collection.name == "Types":
-                self.type_collection = collection
-                break
-        if not self.type_collection:
-            self.type_collection = bpy.data.collections.new("Types")
-            self.project["blender"].children.link(self.type_collection)
-
-    def create_views_collection(self):
-        view_collection = None
-        for collection in self.project["blender"].children:
-            if collection.name == "Views":
-                view_collection = collection
-                break
-        if not view_collection:
-            view_collection = bpy.data.collections.new("Views")
-            self.project["blender"].children.link(view_collection)
+        tool.Loader.create_project_collection("Views")
+        self.type_collection = tool.Loader.create_project_collection("Types")

    def create_spatial_decomposition_collection(self, parent, related_objects):
        for element in related_objects:
@@ -1478,183 +1611,18 @@ class IfcImporter:
        if not blender_material:
            name = style.Name or str(style.id())
            blender_material = bpy.data.materials.new(name)
+            blender_material.use_fake_user = True

        self.link_element(style, blender_material)

        blender_material.BIMMaterialProperties.ifc_style_id = style.id()
        self.material_creator.styles[style.id()] = blender_material

-        rendering_style = None
-        texture_style = None
-
-        for surface_style in style.Styles:
-            if surface_style.is_a() == "IfcSurfaceStyleShading":
-                self.create_surface_style_shading(blender_material, surface_style)
-            elif surface_style.is_a("IfcSurfaceStyleRendering"):
-                rendering_style = surface_style
-                self.create_surface_style_rendering(blender_material, surface_style)
-            elif surface_style.is_a("IfcSurfaceStyleWithTextures"):
-                texture_style = surface_style
-
-        if rendering_style and texture_style:
-            self.create_surface_style_with_textures(blender_material, rendering_style, texture_style)
-
-        tool.Style.record_shading(blender_material)
-
-    def create_surface_style_shading(self, blender_material, surface_style):
-        alpha = 1.0
-        # Transparency was added in IFC4
-        if hasattr(surface_style, "Transparency") and surface_style.Transparency:
-            alpha = 1 - surface_style.Transparency
-        blender_material.diffuse_color = (
-            surface_style.SurfaceColour.Red,
-            surface_style.SurfaceColour.Green,
-            surface_style.SurfaceColour.Blue,
-            alpha,
-        )
-
-    def create_surface_style_rendering(self, blender_material, surface_style):
-        self.create_surface_style_shading(blender_material, surface_style)
-        if surface_style.ReflectanceMethod in ["PHYSICAL", "NOTDEFINED"]:
-            blender_material.use_nodes = True
-            bsdf = blender_material.node_tree.nodes["Principled BSDF"]
-            if surface_style.DiffuseColour:
-                if surface_style.DiffuseColour.is_a("IfcColourRgb"):
-                    bsdf.inputs["Base Color"].default_value = (
-                        surface_style.DiffuseColour.Red,
-                        surface_style.DiffuseColour.Green,
-                        surface_style.DiffuseColour.Blue,
-                        1,
-                    )
-                elif surface_style.DiffuseColour.is_a("IfcNormalisedRatioMeasure"):
-                    bsdf.inputs["Base Color"].default_value = (
-                        surface_style.SurfaceColour.Red * surface_style.DiffuseColour.wrappedValue,
-                        surface_style.SurfaceColour.Green * surface_style.DiffuseColour.wrappedValue,
-                        surface_style.SurfaceColour.Blue * surface_style.DiffuseColour.wrappedValue,
-                        1,
-                    )
-            if surface_style.SpecularColour and surface_style.SpecularColour.is_a("IfcNormalisedRatioMeasure"):
-                bsdf.inputs["Metallic"].default_value = surface_style.SpecularColour.wrappedValue
-            if surface_style.SpecularHighlight and surface_style.SpecularHighlight.is_a("IfcSpecularRoughness"):
-                bsdf.inputs["Roughness"].default_value = surface_style.SpecularHighlight.wrappedValue
-            if hasattr(surface_style, "Transparency") and surface_style.Transparency:
-                bsdf.inputs["Alpha"].default_value = 1 - surface_style.Transparency
-                blender_material.blend_method = "BLEND"
-        elif surface_style.ReflectanceMethod == "FLAT":
-            blender_material.use_nodes = True
-
-            output = {n.type: n for n in blender_material.node_tree.nodes}.get("OUTPUT_MATERIAL", None)
-            bsdf = blender_material.node_tree.nodes["Principled BSDF"]
-
-            mix = blender_material.node_tree.nodes.new(type="ShaderNodeMixShader")
-            mix.location = bsdf.location
-            blender_material.node_tree.links.new(mix.outputs[0], output.inputs["Surface"])
-
-            blender_material.node_tree.nodes.remove(bsdf)
-
-            lightpath = blender_material.node_tree.nodes.new(type="ShaderNodeLightPath")
-            lightpath.location = mix.location - mathutils.Vector((200, -200))
-            blender_material.node_tree.links.new(lightpath.outputs[0], mix.inputs[0])
-
-            bsdf = blender_material.node_tree.nodes.new(type="ShaderNodeBsdfTransparent")
-            bsdf.location = mix.location - mathutils.Vector((200, 0))
-            blender_material.node_tree.links.new(bsdf.outputs[0], mix.inputs[1])
-
-            rgb = blender_material.node_tree.nodes.new(type="ShaderNodeRGB")
-            rgb.location = mix.location - mathutils.Vector((200, 200))
-            blender_material.node_tree.links.new(rgb.outputs[0], mix.inputs[2])
-
-            if surface_style.DiffuseColour and surface_style.DiffuseColour.is_a("IfcColourRgb"):
-                rgb.outputs[0].default_value = (
-                    surface_style.DiffuseColour.Red,
-                    surface_style.DiffuseColour.Green,
-                    surface_style.DiffuseColour.Blue,
-                    1,
-                )
-
-    def create_surface_style_with_textures(self, blender_material, rendering_style, texture_style):
-        for texture in texture_style.Textures:
-            mode = getattr(texture, "Mode", None)
-            node = None
-
-            if texture.is_a("IfcImageTexture"):
-                image_url = texture.URLReference
-                if not os.path.abspath(texture.URLReference) and tool.Ifc.get_path():
-                    image_url = os.path.join(os.path.dirname(tool.Ifc.get_path()), texture.URLReference)
-
-            if rendering_style.ReflectanceMethod in ["PHYSICAL", "NOTDEFINED"]:
-                bsdf = blender_material.node_tree.nodes["Principled BSDF"]
-                if mode == "NORMAL":
-                    normalmap = blender_material.node_tree.nodes.new(type="ShaderNodeNormalMap")
-                    normalmap.location = bsdf.location - mathutils.Vector((200, 0))
-                    blender_material.node_tree.links.new(normalmap.outputs[0], bsdf.inputs["Normal"])
-
-                    node = blender_material.node_tree.nodes.new(type="ShaderNodeTexImage")
-                    node.location = normalmap.location - mathutils.Vector((200, 0))
-                    image = bpy.data.images.load(image_url)
-                    image.colorspace_settings.name = "Non-Color"
-                    node.image = image
-                    blender_material.node_tree.links.new(node.outputs[0], normalmap.inputs["Color"])
-                elif mode == "EMISSIVE":
-                    output = {n.type: n for n in blender_material.node_tree.nodes}.get("OUTPUT_MATERIAL", None)
-
-                    add = blender_material.node_tree.nodes.new(type="ShaderNodeAddShader")
-                    add.location = bsdf.location + mathutils.Vector((200, 0))
-                    blender_material.node_tree.links.new(bsdf.outputs[0], add.inputs[1])
-                    blender_material.node_tree.links.new(add.outputs[0], output.inputs[0])
-
-                    emission = blender_material.node_tree.nodes.new(type="ShaderNodeEmission")
-                    emission.location = add.location - mathutils.Vector((200, 0))
-                    blender_material.node_tree.links.new(emission.outputs[0], add.inputs[0])
-
-                    node = blender_material.node_tree.nodes.new(type="ShaderNodeTexImage")
-                    node.location = emission.location - mathutils.Vector((200, 0))
-                    image = bpy.data.images.load(image_url)
-                    node.image = image
-                    blender_material.node_tree.links.new(node.outputs[0], emission.inputs[0])
-                elif mode == "METALLICROUGHNESS":
-                    separate = blender_material.node_tree.nodes.new(type="ShaderNodeSeparateRGB")
-                    separate.location = bsdf.location - mathutils.Vector((200, 0))
-                    blender_material.node_tree.links.new(separate.outputs[1], bsdf.inputs["Roughness"])
-                    blender_material.node_tree.links.new(separate.outputs[2], bsdf.inputs["Metallic"])
-
-                    node = blender_material.node_tree.nodes.new(type="ShaderNodeTexImage")
-                    node.location = separate.location - mathutils.Vector((200, 0))
-                    image = bpy.data.images.load(image_url)
-                    image.colorspace_settings.name = "Non-Color"
-                    node.image = image
-                    blender_material.node_tree.links.new(node.outputs[0], separate.inputs[0])
-                elif mode == "OCCLUSION":
-                    # TODO work out how to implement glTF settings here
-                    # https://docs.blender.org/manual/en/dev/addons/import_export/scene_gltf2.html
-                    pass
-                elif mode == "DIFFUSE":
-                    node = blender_material.node_tree.nodes.new(type="ShaderNodeTexImage")
-                    node.location = bsdf.location - mathutils.Vector((400, 0))
-                    image = bpy.data.images.load(image_url)
-                    node.image = image
-                    blender_material.node_tree.links.new(node.outputs[0], bsdf.inputs["Base Color"])
-                    blender_material.node_tree.links.new(node.outputs[1], bsdf.inputs["Alpha"])
-                    blender_material.blend_method = "BLEND"
-            elif rendering_style.ReflectanceMethod == "FLAT":
-                bsdf = blender_material.node_tree.nodes["Mix Shader"]
-                if mode == "EMISSIVE":
-                    node = blender_material.node_tree.nodes.new(type="ShaderNodeTexImage")
-                    node.location = bsdf.location - mathutils.Vector((200, 0))
-                    image = bpy.data.images.load(image_url)
-                    node.image = image
-                    blender_material.node_tree.links.new(node.outputs[0], bsdf.inputs[2])
-
-            if node and getattr(texture, "IsMappedBy", None):
-                coordinates = texture.IsMappedBy[0]
-                coord = blender_material.node_tree.nodes.new(type="ShaderNodeTexCoord")
-                coord.location = node.location - mathutils.Vector((200, 0))
-                if coordinates.is_a("IfcTextureCoordinateGenerator") and coordinates.Mode == "COORD":
-                    blender_material.node_tree.links.new(coord.outputs["Generated"], node.inputs["Vector"])
-                elif coordinates.is_a("IfcTextureCoordinateGenerator") and coordinates.Mode == "COORD-EYE":
-                    blender_material.node_tree.links.new(coord.outputs["Camera"], node.inputs["Vector"])
-                else:
-                    blender_material.node_tree.links.new(coord.outputs["UV"], node.inputs["Vector"])
+        style_elements = tool.Style.get_style_elements(blender_material)
+        if tool.Style.has_blender_external_style(style_elements):
+            blender_material.BIMStyleProperties.active_style_type = "External"
+        else:
+            blender_material.BIMStyleProperties.active_style_type = "Shading"

    def place_objects_in_collections(self):
        for ifc_definition_id, obj in self.added_data.items():
@@ -1729,7 +1697,10 @@ class IfcImporter:
                return rel.RelatingGroup

    def get_element_matrix(self, element):
-        result = ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement)
+        if isinstance(element, ifcopenshell.sqlite_entity):
+            result = self.geometry_cache["shapes"][element.id()]["matrix"]
+        else:
+            result = ifcopenshell.util.placement.get_local_placement(element.ObjectPlacement)
        result[0][3] *= self.unit_scale
        result[1][3] *= self.unit_scale
        result[2][3] *= self.unit_scale
@@ -1879,6 +1850,10 @@ class IfcImporter:
                loop_total = [3] * num_loops
                num_vertex_indices = len(geometry.faces)

+                # See bug 3546
+                # ios_edges holds true edges that aren't triangulated.
+                mesh["ios_edges"] = list(set(tuple(e) for e in ifcopenshell.util.shape.get_edges(geometry)))
+
                mesh.vertices.add(num_vertices)
                mesh.vertices.foreach_set("co", verts)
                mesh.loops.add(num_vertex_indices)
@@ -1886,6 +1861,7 @@ class IfcImporter:
                mesh.polygons.add(num_loops)
                mesh.polygons.foreach_set("loop_start", loop_start)
                mesh.polygons.foreach_set("loop_total", loop_total)
+                mesh.polygons.foreach_set("use_smooth", [0] * total_faces)
                mesh.update()
            else:
                e = geometry.edges
@@ -1953,6 +1929,22 @@ 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")
+
+    def setup_arrays(self):
+        for element in self.file.by_type("IfcElement"):
+            pset_data = ifcopenshell.util.element.get_pset(element, "BBIM_Array")
+            if not pset_data or not pset_data.get("Data", None):  # skip array children
+                continue
+            for i in range(len(json.loads(pset_data["Data"]))):
+                tool.Blender.Modifier.Array.set_children_lock_state(element, i, True)
+                tool.Blender.Modifier.Array.constrain_children_to_parent(element)
+

 class IfcImportSettings:
    def __init__(self):
@@ -1962,8 +1954,9 @@ class IfcImportSettings:
        self.should_use_cpu_multiprocessing = True
        self.merge_mode = None
        self.should_merge_materials_by_colour = False
+        self.should_load_geometry = True
        self.should_use_native_meshes = False
-        self.should_clean_mesh = True
+        self.should_clean_mesh = False
        self.should_cache = True
        self.is_coordinating = True
        self.deflection_tolerance = 0.001
@@ -1991,6 +1984,7 @@ class IfcImportSettings:
        settings.should_use_cpu_multiprocessing = props.should_use_cpu_multiprocessing
        settings.merge_mode = props.merge_mode
        settings.should_merge_materials_by_colour = props.should_merge_materials_by_colour
+        settings.should_load_geometry = props.should_load_geometry
        settings.should_use_native_meshes = props.should_use_native_meshes
        settings.should_clean_mesh = props.should_clean_mesh
        settings.should_cache = props.should_cache
@@ -202,6 +202,7 @@ class BIM_OT_select_aggregate(bpy.types.Operator):
        aggregate_obj = tool.Ifc.get_object(aggregate)
        if aggregate_obj in context.selectable_objects:
            aggregate_obj.select_set(True)
+            bpy.context.view_layer.objects.active = aggregate_obj
        return {"FINISHED"}


@@ -22,13 +22,13 @@ from blenderbim.bim.ifc import IfcStore


 class BIM_PT_aggregate(Panel):
-    bl_label = "IFC Aggregates"
+    bl_label = "Aggregates"
    bl_idname = "BIM_PT_aggregate"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "object"
-    bl_parent_id = "BIM_PT_object_metadata"
+    bl_parent_id = "BIM_PT_tab_object_metadata"

    @classmethod
    def poll(cls, context):
@@ -54,12 +54,12 @@ def draw_ui(context, layout, obj_type, attributes):


 class BIM_PT_object_attributes(Panel):
-    bl_label = "IFC Attributes"
+    bl_label = "Attributes"
    bl_idname = "BIM_PT_object_attributes"
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "object"
-    bl_parent_id = "BIM_PT_object_metadata"
+    bl_parent_id = "BIM_PT_tab_object_metadata"

    @classmethod
    def poll(cls, context):
@@ -76,7 +76,7 @@ class BIM_PT_object_attributes(Panel):


 class BIM_PT_material_attributes(Panel):
-    bl_label = "IFC Material Attributes"
+    bl_label = "Material Attributes"
    bl_idname = "BIM_PT_material_attributes"
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
@@ -26,7 +26,7 @@ class BIM_PT_augin(bpy.types.Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_integrations"
+    bl_parent_id = "BIM_PT_tab_sandbox"

    def draw(self, context):
        layout = self.layout
@@ -57,6 +57,7 @@ classes = (
    operator.SelectBcfBimSnippetReference,
    operator.SelectBcfDocumentReference,
    operator.SelectBcfHeaderFile,
+    operator.UnloadBcfProject,
    operator.ViewBcfTopic,
    prop.BcfReferenceLink,
    prop.BcfLabel,
@@ -58,7 +58,6 @@ class LoadBcfProject(bpy.types.Operator):
    filter_glob: bpy.props.StringProperty(default="*.bcf;*.bcfzip", options={"HIDDEN"})

    def execute(self, context):
-        context.scene.BCFProperties.is_loaded = False
        if self.filepath:
            bcfstore.BcfStore.bcfxml = bcf.bcfxml.load(self.filepath)
        bcfxml = bcfstore.BcfStore.get_bcfxml()
@@ -72,6 +71,17 @@ class LoadBcfProject(bpy.types.Operator):
        return {"RUNNING_MODAL"}


+class UnloadBcfProject(bpy.types.Operator):
+    bl_idname = "bim.unload_bcf_project"
+    bl_label = "Unload BCF Project"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        bcfstore.BcfStore.set(None)
+        context.scene.BCFProperties.is_loaded = False
+        return {"FINISHED"}
+
+
 class LoadBcfTopics(bpy.types.Operator):
    bl_idname = "bim.load_bcf_topics"
    bl_label = "Load BCF Topics"
@@ -29,7 +29,7 @@ class BIM_PT_bcf(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_collaboration"
+    bl_parent_id = "BIM_PT_tab_collaboration"

    def draw(self, context):
        layout = self.layout
@@ -39,14 +39,16 @@ class BIM_PT_bcf(Panel):
        scene = context.scene
        props = scene.BCFProperties

-        row = layout.row(align=True)
-        row.operator("bim.new_bcf_project", text="New Project")
-        row.operator("bim.load_bcf_project", text="Load Project")

        if not props.is_loaded:
+            row = layout.row(align=True)
+            row.operator("bim.new_bcf_project", text="New Project")
+            row.operator("bim.load_bcf_project", text="Load Project")
            return

-        row.operator("bim.save_bcf_project", text="Save Project")
+        row = layout.row(align=True)
+        row.operator("bim.save_bcf_project", icon="EXPORT", text="Save Project")
+        row.operator("bim.unload_bcf_project", text="", icon="CANCEL")

        row = layout.row()
        row.prop(props, "name")
@@ -27,7 +27,7 @@ class BIM_PT_qa(Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_quality_control"
+    bl_parent_id = "BIM_PT_tab_quality_control"

    def draw(self, context):
        self.layout.use_property_split = True
@@ -35,6 +35,7 @@ from mathutils import Vector, Matrix
 from blenderbim.bim.ifc import IfcStore
 from blenderbim.bim.module.model.decorator import ProfileDecorator
 from blenderbim.bim.module.boundary.decorator import BoundaryDecorator
+import blenderbim.core


 def get_boundaries_collection(blender_space):
@@ -102,10 +103,8 @@ class Loader:
            unit_scale = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
            matrix = mathutils.Matrix(
                ifcopenshell.util.placement.get_axis2placement(surface.BasisSurface.Position).tolist()
-            )
-            matrix[0][3] *= unit_scale
-            matrix[1][3] *= unit_scale
-            matrix[2][3] *= unit_scale
+            )            
+            matrix.translation *= unit_scale
            mesh.transform(matrix)
        return mesh

@@ -690,7 +689,7 @@ class AddBoundary(bpy.types.Operator, tool.Ifc.Operator):
        mat.col[0][:3] = x_axis
        mat.col[1][:3] = y_axis
        mat.col[2][:3] = z_axis
-        mat.col[3][:3] = p1
+        mat.translation = p1

        return mat

@@ -724,7 +723,7 @@ class AddBoundary(bpy.types.Operator, tool.Ifc.Operator):
    def export_surface(self, polygon, target_face_matrix):
        x_axis = target_face_matrix.col[0][:3]
        z_axis = target_face_matrix.col[2][:3]
-        p1 = target_face_matrix.col[3][:3]
+        p1 = target_face_matrix.translation

        self.unit_scale = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
        tool.Model.unit_scale = self.unit_scale
@@ -25,7 +25,7 @@ from blenderbim.bim.module.boundary.data import SpaceBoundariesData


 class BIM_PT_SceneBoundaries(Panel):
-    bl_label = "IFC Space Boundaries"
+    bl_label = "Space Boundaries"
    bl_id_name = "BIM_PT_scene_boundaries"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
@@ -45,12 +45,12 @@ class BIM_PT_SceneBoundaries(Panel):


 class BIM_PT_Boundary(Panel):
-    bl_label = "IFC Space Boundary"
+    bl_label = "Space Boundary"
    bl_idname = "BIM_PT_Boundary"
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "object"
-    bl_parent_id = "BIM_PT_geometry_object"
+    bl_parent_id = "BIM_PT_tab_geometric_relationships"

    @classmethod
    def poll(cls, context):
@@ -117,14 +117,14 @@ class BIM_PT_Boundary(Panel):


 class BIM_PT_SpaceBoundaries(Panel):
-    bl_label = "IFC Space Boundaries"
+    bl_label = "Space Boundaries"
    bl_idname = "BIM_PT_SpaceBoundaries"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "object"
    bl_order = 1
-    bl_parent_id = "BIM_PT_geometry_object"
+    bl_parent_id = "BIM_PT_tab_geometric_relationships"

    @classmethod
    def poll(cls, context):
@@ -21,7 +21,7 @@ from . import ui, prop, operator

 classes = (
    operator.AddBrick,
-    operator.AddBrickFeed,
+    operator.AddBrickRelation,
    operator.AssignBrickReference,
    operator.CloseBrickProject,
    operator.ConvertBrickProject,
@@ -33,11 +33,18 @@ classes = (
    operator.RewindBrickClass,
    operator.ViewBrickClass,
    operator.ViewBrickItem,
+    operator.SerializeBrick,
+    operator.AddBrickNamespace,
+    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,
 )


@@ -41,17 +41,15 @@ class BrickschemaData:
        cls.is_loaded = True
        cls.data = {
            "is_loaded": cls.get_is_loaded(),
-            "attributes": cls.attributes(),
-            "namespaces": cls.namespaces(),
-            "brick_equipment_classes": cls.brick_equipment_classes(),
+            "active_relations": cls.active_relations(),
        }

    @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 attributes(cls):
+    def active_relations(cls):
        if BrickStore.graph is None:
            return []
        props = bpy.context.scene.BIMBrickProperties
@@ -59,78 +57,75 @@ class BrickschemaData:
            brick = props.bricks[props.active_brick_index]
        except:
            return []
-        results = []
        uri = brick.uri
+        namespace = str(uri.split("#")[0])
+        if namespace == "https://brickschema.org/schema/Brick":
+            return []
+        results = []
        query = BrickStore.graph.query(
            """
            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 ?name ?value ?sp ?sv WHERE {
-               <{uri}> ?name ?value .
-               OPTIONAL {
-               { ?name rdfs:range brick:TimeseriesReference . }
-                UNION
-               { ?name a brick:EntityProperty . }
-                ?value ?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:
-            name = row.get("name").toPython().split("#")[-1]
-            value = row.get("value")
+            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(
                {
-                    "name": name,
-                    "value": value.toPython().split("#")[-1],
-                    "is_uri": isinstance(value, URIRef),
-                    "value_uri": value.toPython(),
-                    "is_globalid": name == "globalID",
+                    "predicate_uri": predicate_uri,
+                    "predicate_name": predicate_name,
+                    "object_uri": object_uri,
+                    "object_name": object_name,
+                    "is_uri": isinstance(object_uri, URIRef),
+                    "is_globalid": predicate_name == "ifcGlobalID",
                }
            )
-            if isinstance(row.get("value"), BNode):
-                for s, p, o in BrickStore.graph.triples((value, None, None)):
+            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(
                        {
-                            "name": name + ":" + p.toPython().split("#")[-1],
-                            "value": o.toPython().split("#")[-1],
-                            "is_uri": isinstance(o, URIRef),
-                            "value_uri": o.toPython(),
-                            "is_globalid": p.toPython().split("#")[-1] == "globalID",
+                            "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

-    @classmethod
-    def namespaces(cls):
-        if BrickStore.graph is None:
-            return []
-        results = []
-        for alias, uri in BrickStore.graph.namespaces():
-            results.append((uri, f"{alias}: {uri}", ""))
-        return results
-
-    @classmethod
-    def brick_equipment_classes(cls):
-        if BrickStore.graph is None:
-            return []
-        results = []
-        query = BrickStore.graph.query(
-            """
-            PREFIX brick: <https://brickschema.org/schema/Brick#>
-            PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
-            SELECT ?class WHERE {
-                ?class rdfs:subClassOf* brick:Equipment .
-            }
-        """
-        )
-        for uri in sorted([x[0].toPython() for x in query]):
-            results.append((uri, uri.split("#")[-1], ""))
-        return results
-

 class BrickschemaReferencesData:
    data = {}
@@ -154,7 +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

@@ -16,17 +16,19 @@
 # You should have received a copy of the GNU General Public License
 # along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.

+import os
 import bpy
 import ifcopenshell.api
 import blenderbim.tool as tool
 import blenderbim.core.brick as core
 import blenderbim.bim.handler
 from blenderbim.bim.ifc import IfcStore
+from blenderbim.tool.brick import BrickStore


 class Operator:
    def execute(self, context):
-        self._execute(context)
+        IfcStore.execute_ifc_operator(self, context)
        blenderbim.bim.handler.refresh_ui_data()
        return {"FINISHED"}

@@ -35,11 +37,16 @@ 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"})

    def _execute(self, context):
-        core.load_brick_project(tool.Brick, filepath=self.filepath)
+        if os.path.exists(self.filepath) and "ttl" in os.path.splitext(self.filepath)[1].lower():
+            root = context.scene.BIMBrickProperties.brick_list_root
+            core.load_brick_project(tool.Brick, filepath=self.filepath, brick_root=root)
+        else:
+            self.report({'ERROR'}, f'Failed to load {self.filepath}')

    def invoke(self, context, event):
        context.window_manager.fileselect_add(self)
@@ -50,35 +57,45 @@ 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"})

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


 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)
+        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):
-        core.rewind_brick_class(tool.Brick)
+        core.rewind_brick_class(tool.Brick, split_screen=self.split_screen)


 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)
@@ -88,6 +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)
@@ -97,9 +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,
@@ -113,35 +140,41 @@ 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_equipment_class,
-            library=library,
+            brick_class=props.brick_entity_class,
+            library=tool.Ifc.get().by_id(int(props.libraries)) if props.libraries else None,
+            label=props.new_brick_label,
        )


-class AddBrickFeed(bpy.types.Operator, Operator):
-    bl_idname = "bim.add_brick_feed"
-    bl_label = "Add Brick Feed"
+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):
-        source = tool.Ifc.get_entity([o for o in context.selected_objects if o != context.active_object][0])
-        destination = tool.Ifc.get_entity(context.active_object)
-        core.add_brick_feed(
-            tool.Ifc,
+        props = context.scene.BIMBrickProperties
+        brick = props.bricks[props.active_brick_index]
+        if props.new_brick_relation_type == "http://www.w3.org/2000/01/rdf-schema#label":
+            object = props.new_brick_relation_object
+        elif props.split_screen_toggled:
+            object = props.split_screen_bricks[props.split_screen_active_brick_index].uri
+        else:
+            object = props.namespace + props.new_brick_relation_object
+        core.add_brick_relation(
            tool.Brick,
-            source=source,
-            destination=destination,
+            brick_uri=brick.uri,
+            predicate=props.new_brick_relation_type,
+            object=object
        )


@@ -149,6 +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
@@ -158,19 +192,44 @@ class ConvertIfcToBrick(bpy.types.Operator, Operator):
        core.convert_ifc_to_brick(tool.Brick, namespace=props.namespace, library=library)


-class NewBrickFile(bpy.types.Operator, Operator):
+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)
+        IfcStore.add_transaction_operation(self, rollback=self.rollback, commit=lambda data: True)
+        self._execute(context)
+        self.transaction_data = {
+            "schema": BrickStore.schema,
+            "path": BrickStore.path,
+            "graph": BrickStore.graph,
+        }
+        IfcStore.add_transaction_operation(self, rollback=lambda data: True, commit=self.commit)
+        IfcStore.end_transaction(self)
+        blenderbim.bim.handler.refresh_ui_data()
+        return {"FINISHED"}

    def _execute(self, context):
-        core.new_brick_file(tool.Brick)
+        root = context.scene.BIMBrickProperties.brick_list_root
+        core.new_brick_file(tool.Brick, brick_root=root)
+
+    def rollback(self, data):
+        BrickStore.purge()
+
+    def commit(self, data):
+        BrickStore.schema = data["schema"]
+        BrickStore.path = data["path"]
+        BrickStore.graph = data["graph"]


 class RefreshBrickViewer(bpy.types.Operator, Operator):
    bl_idname = "bim.refresh_brick_viewer"
    bl_label = "Refresh Brick Viewer"
    bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Refresh the list view"

    def _execute(self, context):
        core.refresh_brick_viewer(tool.Brick)
@@ -180,6 +239,7 @@ 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
@@ -189,3 +249,57 @@ class RemoveBrick(bpy.types.Operator, Operator):
            library=tool.Ifc.get().by_id(int(props.libraries)) if props.libraries else None,
            brick_uri=props.bricks[props.active_brick_index].uri,
        )
+
+
+class SerializeBrick(bpy.types.Operator):
+    bl_idname = "bim.serialize_brick"
+    bl_label = "Serialize Brick"
+    filter_glob: bpy.props.StringProperty(default="*.ttl", options={"HIDDEN"})
+    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
+    should_save_as: bpy.props.BoolProperty(name="Should Save As", default=False, options={"HIDDEN"})
+
+    def invoke(self, context, event):
+        if self.should_save_as or not BrickStore.path:
+            WindowManager = context.window_manager
+            WindowManager.fileselect_add(self)
+            return {"RUNNING_MODAL"}
+        else:
+            return self.execute(context)
+
+    def execute(self, context):
+        if self.should_save_as or not BrickStore.path:
+            BrickStore.path = self.filepath
+        core.serialize_brick(tool.Brick)
+        return {"FINISHED"}
+
+    @classmethod
+    def description(cls, context, properties):
+        if properties.should_save_as:
+            return "Save Brick project to a selected file"
+        return "Save the Brick project"
+
+
+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_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")
+
+    def _execute(self, context):
+        props = context.scene.BIMBrickProperties
+        brick = props.bricks[props.active_brick_index]
+        core.remove_brick_relation(tool.Brick, brick_uri=brick.uri, predicate=self.predicate, object=self.object)
@@ -30,7 +30,9 @@ 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):
    BrickschemaData.is_loaded = False
@@ -43,15 +45,35 @@ def get_libraries(self, context):


 def get_namespaces(self, context):
-    if not BrickschemaData.is_loaded:
-        BrickschemaData.load()
-    return BrickschemaData.data["namespaces"]
+    return [(uri, f"{alias}: {uri}", "") for alias, uri in BrickStore.namespaces]


-def get_brick_equipment_classes(self, context):
-    if not BrickschemaData.is_loaded:
-        BrickschemaData.load()
-    return BrickschemaData.data["brick_equipment_classes"]
+def get_brick_entity_classes(self, context):
+    entity = self.brick_entity_create_type
+    return [(uri, uri.split("#")[-1], "") for uri in BrickStore.entity_classes[entity]]
+
+
+def get_brick_roots(self, context): 
+    return [(root, root, "") for root in BrickStore.root_classes]
+
+
+def get_brick_relations(self, context):
+    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):
@@ -67,5 +89,26 @@ class BIMBrickProperties(PropertyGroup):
    bricks: CollectionProperty(name="Bricks", type=Brick)
    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, update=update_view)
+    # namespace manager
    namespace: EnumProperty(name="Namespace", items=get_namespaces)
-    brick_equipment_class: EnumProperty(name="Brick Equipment Class", items=get_brick_equipment_classes)
+    new_brick_namespace_alias: StringProperty(name="New Brick Namespace Alias")
+    new_brick_namespace_uri: StringProperty(name="New Brick Namespace URI")
+    # create brick entity
+    new_brick_label: StringProperty(name="New Brick Label")
+    brick_entity_create_type: EnumProperty(name="Brick Entity Types", items=get_brick_roots)
+    brick_entity_class: EnumProperty(name="Brick Equipment Class", items=get_brick_entity_classes)
+    # create relations
+    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_object: StringProperty(name="New Brick Relation Object")
+    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, update=split_screen_update_view)
@@ -20,21 +20,33 @@ import blenderbim.tool as tool
 from bpy.types import Panel, UIList
 from blenderbim.bim.helper import prop_with_search
 from blenderbim.bim.module.brick.data import BrickschemaData, BrickschemaReferencesData
+from blenderbim.tool.brick import BrickStore


 class BIM_PT_brickschema(Panel):
    bl_label = "Brickschema Project"
    bl_idname = "BIM_PT_brickschema"
-    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
+    bl_parent_id = "BIM_PT_tab_operations"

    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")
@@ -42,38 +54,217 @@ class BIM_PT_brickschema(Panel):
            return

        row = self.layout.row(align=True)
-        if len(self.props.brick_breadcrumbs):
-            row.operator("bim.rewind_brick_class", text="", icon="FRAME_PREV")
-        row.label(text=self.props.active_brick_class)
-        row.operator("bim.refresh_brick_viewer", text="", icon="FILE_REFRESH")
+        if BrickStore.path:
+            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")
+        op.should_save_as = False
+        op = row.operator("bim.serialize_brick", icon="FILE_TICK", text="Save As")
+        op.should_save_as = True
        row.operator("bim.close_brick_project", text="", icon="CANCEL")

+
+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"
+
+    @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.label(text="Active Namespace:")
+
        row = self.layout.row(align=True)
        prop_with_search(row, self.props, "namespace", text="")
-        prop_with_search(row, self.props, "brick_equipment_class", text="")
-        row.operator("bim.add_brick", text="", icon="ADD")

        row = self.layout.row(align=True)
-        row.alignment = "RIGHT"
-        row.operator("bim.add_brick_feed", text="", icon="PLUGIN")
-        row.operator("bim.remove_brick", text="", icon="X")
+        row.label(text="Bind New Namespace:")

-        self.layout.template_list("BIM_UL_bricks", "", self.props, "bricks", self.props, "active_brick_index")
+        row = self.layout.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")

-        for attribute in BrickschemaData.data["attributes"]:
+
+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)
+        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.label(text=self.props.active_brick_class)
+
+        if self.props.set_list_root_toggled:
+            row = grid_left.row(align=True)
+            row.prop(data=self.props, property="brick_list_root", text="")
+
+        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:
+            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 = grid_right.row(align=True)
+                row.prop(data=self.props, property="split_screen_brick_list_root", text="")
+
+            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)
-            row.label(text=attribute["name"])
-            row.label(text=attribute["value"])
-            if attribute["is_uri"]:
-                op = row.operator("bim.view_brick_item", text="", icon="DISCLOSURE_TRI_RIGHT")
-                op.item = attribute["value_uri"]
-            if attribute["is_globalid"]:
-                op = row.operator("bim.select_global_id", icon="RESTRICT_SELECT_OFF", text="")
-                op.global_id = attribute["value"]
+            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")

+            if self.props.brick_create_relations_toggled and self.props.split_screen_toggled:
+                row = self.layout.row(align=True)
+                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_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_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"]:
+            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"])
+            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_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"]:
+                op = row.operator("bim.select_global_id", icon="RESTRICT_SELECT_OFF", text="")
+                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 = "IFC Brickschema References"
+    bl_label = "Brickschema References"
    bl_idname = "BIM_PT_ifc_brickschema_references"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
@@ -95,15 +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")
@@ -118,16 +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):
-    def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
-        if item:
-            row = layout.row(align=True)
-            if item.total_items:
-                op = row.operator("bim.view_brick_class", text="", icon="DISCLOSURE_TRI_RIGHT", emboss=False)
-                op.brick_class = item.name
-            row.label(text=item.label if item.label else item.name)
-            if item.total_items:
-                row.label(text=str(item.total_items))
+            row.operator("bim.view_brick_item", text="", icon="DISCLOSURE_TRI_RIGHT").item = reference["identification"]
@@ -0,0 +1,42 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import bpy
+from . import ui, prop, operator
+
+classes = (
+    operator.GetBSDDClassificationProperties,
+    operator.LoadBSDDDomains,
+    operator.SearchBSDDClassifications,
+    operator.SetActiveBSDDDomain,
+    prop.BSDDDomain,
+    prop.BSDDClassification,
+    prop.BSDDPset,
+    prop.BIMBSDDProperties,
+    ui.BIM_UL_bsdd_domains,
+    ui.BIM_UL_bsdd_classifications,
+    ui.BIM_PT_bsdd,
+)
+
+
+def register():
+    bpy.types.Scene.BIMBSDDProperties = bpy.props.PointerProperty(type=prop.BIMBSDDProperties)
+
+
+def unregister():
+    del bpy.types.Scene.BIMBSDDProperties
@@ -0,0 +1,132 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import bpy
+import bsdd
+import json
+import ifcopenshell
+import blenderbim.tool as tool
+
+
+class LoadBSDDDomains(bpy.types.Operator):
+    bl_idname = "bim.load_bsdd_domains"
+    bl_label = "Load bSDD Domains"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        props = context.scene.BIMBSDDProperties
+        props.domains.clear()
+        client = bsdd.Client()
+        for domain in sorted(client.Domain(), key=lambda x: x["name"]):
+            new = props.domains.add()
+            new.name = domain["name"]
+            new.namespace_uri = domain["namespaceUri"]
+            new.default_language_code = domain["defaultLanguageCode"]
+            new.organization_name_owner = domain["organizationNameOwner"]
+            new.status = domain["status"]
+            new.version = domain["version"]
+        return {"FINISHED"}
+
+
+class SetActiveBSDDDomain(bpy.types.Operator):
+    bl_idname = "bim.set_active_bsdd_domain"
+    bl_label = "Load bSDD Domains"
+    bl_options = {"REGISTER", "UNDO"}
+    name: bpy.props.StringProperty()
+    uri: bpy.props.StringProperty()
+
+    def execute(self, context):
+        props = context.scene.BIMBSDDProperties
+        props.active_domain = self.name
+        props.active_uri = self.uri
+        return {"FINISHED"}
+
+
+class SearchBSDDClassifications(bpy.types.Operator):
+    bl_idname = "bim.search_bsdd_classifications"
+    bl_label = "Search bSDD Classifications"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        props = context.scene.BIMBSDDProperties
+        props.classifications.clear()
+        client = bsdd.Client()
+        related_ifc_entities = []
+        if len(props.keyword) < 3:
+            return {"FINISHED"}
+        if props.should_filter_ifc_class and context.active_object:
+            element = tool.Ifc.get_entity(context.active_object)
+            if element:
+                related_ifc_entities = [element.is_a()]
+        results = client.ClassificationSearchOpen(props.keyword, DomainNamespaceUris=[props.active_uri], RelatedIfcEntities=related_ifc_entities)
+        for result in sorted(results["classifications"], key=lambda x: x["referenceCode"]):
+            new = props.classifications.add()
+            new.name = result["name"]
+            new.reference_code = result["referenceCode"]
+            new.description = result.get("description", "")
+            new.namespace_uri = result["namespaceUri"]
+            new.domain_name = result["domainName"]
+            new.domain_namespace_uri = result["domainNamespaceUri"]
+        return {"FINISHED"}
+
+
+class GetBSDDClassificationProperties(bpy.types.Operator):
+    bl_idname = "bim.get_bsdd_classification_properties"
+    bl_label = "Search bSDD Classifications"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def execute(self, context):
+        bprops = context.scene.BIMBSDDProperties
+        bprops.classification_psets.clear()
+        bsdd_classification = bprops.classifications[bprops.active_classification_index]
+        client = bsdd.Client()
+        data = client.Classification(bsdd_classification.namespace_uri)
+
+        properties = data.get("classificationProperties", None)
+        if not properties:
+            return {"FINISHED"}
+
+        psets = {}
+
+        for prop in properties:
+            if prop.get("propertyDomainName") != "IFC":
+                continue
+            pset = prop.get("propertySet", None)
+            if not pset:
+                continue
+            psets.setdefault(pset, {})
+
+            predefined_value = prop.get("predefinedValue")
+            if predefined_value:
+                possible_values = [predefined_value]
+            else:
+                possible_values = prop.get("possibleValues", []) or []
+                possible_values = [v["value"] for v in possible_values]
+
+            psets[pset][prop["name"]] = possible_values
+
+        for pset_name, pset in psets.items():
+            new = bprops.classification_psets.add()
+            new.name = pset_name
+            for name, values in pset.items():
+                new2 = new.properties.add()
+                new2.name = name
+                new2.enum_items = json.dumps(values)
+                new2.data_type = "enum"
+        return {"FINISHED"}
@@ -0,0 +1,66 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import bpy
+from bpy.types import PropertyGroup
+from blenderbim.bim.prop import Attribute, StrProperty
+from bpy.props import (
+    PointerProperty,
+    StringProperty,
+    EnumProperty,
+    BoolProperty,
+    IntProperty,
+    FloatProperty,
+    FloatVectorProperty,
+    CollectionProperty,
+)
+
+
+class BSDDDomain(PropertyGroup):
+    name: StringProperty(name="Name")
+    namespace_uri: StringProperty(name="URI")
+    default_language_code: StringProperty(name="Language")
+    organization_name_owner: StringProperty(name="Organization")
+    status: StringProperty(name="Status")
+    version: StringProperty(name="Version")
+
+
+class BSDDClassification(PropertyGroup):
+    name: StringProperty(name="Name")
+    reference_code: StringProperty(name="Reference Code")
+    description: StringProperty(name="Description")
+    namespace_uri: StringProperty(name="Namespace URI")
+    domain_name: StringProperty(name="Domain Name")
+    domain_namespace_uri: StringProperty(name="Domain Namespace URI")
+
+
+class BSDDPset(PropertyGroup):
+    name: StringProperty(name="Name")
+    properties: CollectionProperty(name="Properties", type=Attribute)
+
+
+class BIMBSDDProperties(PropertyGroup):
+    active_domain: StringProperty(name="Active Domain")
+    active_uri: StringProperty(name="Active URI")
+    domains: CollectionProperty(name="Domains", type=BSDDDomain)
+    active_domain_index: IntProperty(name="Active Domain Index")
+    classifications: CollectionProperty(name="Classifications", type=BSDDClassification)
+    active_classification_index: IntProperty(name="Active Classification Index")
+    keyword: StringProperty(name="Keyword")
+    should_filter_ifc_class: BoolProperty(name="Filter Active IFC Class", default=True)
+    classification_psets: CollectionProperty(name="Classification Psets", type=BSDDPset)
@@ -0,0 +1,71 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2023 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import blenderbim.tool as tool
+from bpy.types import Panel, UIList
+from blenderbim.bim.ifc import IfcStore
+
+
+class BIM_PT_bsdd(Panel):
+    bl_label = "buildingSMART Data Dictionary"
+    bl_idname = "BIM_PT_bsdd"
+    bl_options = {"DEFAULT_CLOSED"}
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+    bl_parent_id = "BIM_PT_project_setup"
+
+    def draw(self, context):
+        props = context.scene.BIMBSDDProperties
+        if props.active_domain:
+            row = self.layout.row()
+            row.label(text="Active: " + props.active_domain, icon="URL")
+        else:
+            row = self.layout.row()
+            row.label(text="No Active bSDD Domain", icon="ERROR")
+
+        if len(props.domains):
+            self.layout.template_list(
+                "BIM_UL_bsdd_domains",
+                "",
+                props,
+                "domains",
+                props,
+                "active_domain_index",
+            )
+        else:
+            row = self.layout.row()
+            row.operator("bim.load_bsdd_domains")
+
+
+class BIM_UL_bsdd_domains(UIList):
+    def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
+        if item:
+            row = layout.row(align=True)
+            row.label(text=f"{item.name} ({item.organization_name_owner})")
+            op = row.operator("bim.set_active_bsdd_domain", text="", icon="RESTRICT_SELECT_OFF")
+            op.name = item.name
+            op.uri = item.namespace_uri
+
+
+class BIM_UL_bsdd_classifications(UIList):
+    def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
+        if item:
+            row = layout.row(align=True)
+            row.label(text=item.reference_code)
+            row.label(text=item.name)
@@ -137,24 +137,22 @@ class CadTool(WorkSpaceTool):
        else:
            if (
                (RailingData.is_loaded or not RailingData.load())
-                and RailingData.data["parameters"]
+                and RailingData.data["pset_data"]
                and context.active_object.BIMRailingProperties.is_editing_path
            ):
                row = layout.row(align=True)
-                row.label(text="", icon="EVENT_SHIFT")
-                row.label(text="", icon="EVENT_Q")
-                row.operator("bim.cad_hotkey", text="Apply Railing Path").hotkey = "S_Q"
+                row.label(text="", icon=f"EVENT_TAB")
+                row.operator("bim.finish_editing_railing_path")
                row.operator("bim.cancel_editing_railing_path", icon="CANCEL", text="")

            elif (
                (RoofData.is_loaded or not RoofData.load())
-                and RoofData.data["parameters"]
+                and RoofData.data["pset_data"]
                and context.active_object.BIMRoofProperties.is_editing_path
            ):
                row = layout.row(align=True)
-                row.label(text="", icon="EVENT_SHIFT")
-                row.label(text="", icon="EVENT_Q")
-                row.operator("bim.cad_hotkey", text="Apply Roof Path").hotkey = "S_Q"
+                row.label(text="", icon=f"EVENT_TAB")
+                row.operator("bim.finish_editing_roof_path")
                row.operator("bim.cancel_editing_roof_path", icon="CANCEL", text="")

                row = layout.row(align=True)
@@ -229,7 +227,7 @@ class CadHotkey(bpy.types.Operator):
                row.prop(props, "y")
            elif (
                (RoofData.is_loaded or not RoofData.load())
-                and RoofData.data["parameters"]
+                and RoofData.data["pset_data"]
                and bpy.context.active_object.BIMRoofProperties.is_editing_path
            ):
                self.layout.row().prop(props, "gable_roof_edge_angle")
@@ -270,26 +268,12 @@ class CadHotkey(bpy.types.Operator):
        elif bpy.context.active_object.data.BIMMeshProperties.subshape_type == "AXIS":
            bpy.ops.bim.edit_extrusion_axis()

-        elif (
-            (RailingData.is_loaded or not RailingData.load())
-            and RailingData.data["parameters"]
-            and bpy.context.active_object.BIMRailingProperties.is_editing_path
-        ):
-            bpy.ops.bim.finish_editing_railing_path()
-
-        elif (
-            (RoofData.is_loaded or not RoofData.load())
-            and RoofData.data["parameters"]
-            and bpy.context.active_object.BIMRoofProperties.is_editing_path
-        ):
-            bpy.ops.bim.finish_editing_roof_path()
-
    def hotkey_S_R(self):
        if self.is_profile():
            bpy.ops.bim.add_rectangle(x=self.props.x, y=self.props.y)
        elif (
            (RoofData.is_loaded or not RoofData.load())
-            and RoofData.data["parameters"]
+            and RoofData.data["pset_data"]
            and bpy.context.active_object.BIMRoofProperties.is_editing_path
        ):
            bpy.ops.bim.set_gable_roof_edge_angle(
@@ -23,7 +23,7 @@ import bmesh
 import logging
 import numpy as np
 import ifcopenshell
-from mathutils import Matrix
+from mathutils import Matrix, Vector
 from math import radians
 from blenderbim.bim.ifc import IfcStore

@@ -222,6 +222,7 @@ class ExecuteIfcClash(bpy.types.Operator):
        _, extension = os.path.splitext(self.filepath)
        if extension != ".json":
            self.filepath = bpy.path.ensure_ext(self.filepath, ".bcf")
+
        settings = ifcclash.ClashSettings()
        settings.output = self.filepath
        settings.logger = logging.getLogger("Clash")
@@ -230,12 +231,28 @@ class ExecuteIfcClash(bpy.types.Operator):

        if context.scene.BIMClashProperties.should_create_clash_snapshots:

-            def get_viewpoint_snapshot(viewpoint, mat):
+            def get_viewpoint_snapshot(viewpoint):
                camera = bpy.data.objects.get("IFC Clash Camera")
                if not camera:
                    camera = bpy.data.objects.new("IFC Clash Camera", bpy.data.cameras.new("IFC Clash Camera"))
                    context.scene.collection.objects.link(camera)
-                camera.matrix_world = Matrix(mat)
+
+                bcf_camera = viewpoint.visualization_info.perspective_camera
+                p = bcf_camera.camera_view_point
+                z = bcf_camera.camera_direction
+                z = Vector([z.x, z.y, z.z]) * -1
+                y = bcf_camera.camera_up_vector
+                y = Vector([y.x, y.y, y.z])
+                x = y.cross(z)
+
+                mat = Matrix([
+                    [x[0], y[0], z[0], p.x],
+                    [x[1], y[1], z[1], p.y],
+                    [x[2], y[2], z[2], p.z],
+                    [0, 0, 0, 0],
+                ])
+
+                camera.matrix_world = mat
                context.scene.camera = camera
                camera.data.angle = radians(60)
                area = next(area for area in context.screen.areas if area.type == "VIEW_3D")
@@ -246,7 +263,8 @@ class ExecuteIfcClash(bpy.types.Operator):
                context.scene.render.image_settings.file_format = "PNG"
                context.scene.render.filepath = os.path.join(context.scene.BIMProperties.data_dir, "snapshot.png")
                bpy.ops.render.opengl(write_still=True)
-                return context.scene.render.filepath
+                with open(context.scene.render.filepath, "rb") as f:
+                    return ("snapshot.png", f.read())

            clasher.get_viewpoint_snapshot = get_viewpoint_snapshot

@@ -318,8 +336,15 @@ class SelectIfcClashResults(bpy.types.Operator):
            else:
                element_file = self.file

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

@@ -21,13 +21,13 @@ from bpy.types import Panel


 class BIM_PT_ifcclash(Panel):
-    bl_label = "IFC Clash Sets"
+    bl_label = "Clash Sets"
    bl_idname = "BIM_PT_ifcclash"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_quality_control"
+    bl_parent_id = "BIM_PT_tab_clash_detection"

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

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

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


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


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


 class BIMClassificationProperties(PropertyGroup):
+    classification_source: EnumProperty(
+        items=[
+            ("FILE", "IFC File", ""),
+            ("BSDD", "buildingSMART Data Dictionary", ""),
+            ("MANUAL", "Manual Entry", ""),
+        ],
+        name="Classification Source",
+        default="FILE",
+    )
    available_classifications: EnumProperty(items=get_available_classifications, name="Available Classifications")
    classification_attributes: CollectionProperty(name="Classification Attributes", type=Attribute)
    active_classification_id: IntProperty(name="Active Classification Id")
@@ -30,7 +30,7 @@ from blenderbim.bim.module.classification.data import (


 class BIM_PT_classifications(Panel):
-    bl_label = "IFC Classifications"
+    bl_label = "Classifications"
    bl_idname = "BIM_PT_classifications"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
@@ -48,6 +48,42 @@ class BIM_PT_classifications(Panel):

        self.props = context.scene.BIMClassificationProperties

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

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

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

    def draw_add_ui(self, context):
+        row = self.layout.row(align=True)
+        row.label(text="Source", icon="OUTLINER")
+        row.prop(self.sprops, "classification_source", text="")
+
+        if self.sprops.classification_source == "FILE":
+            self.draw_add_file_ui(context)
+        elif self.sprops.classification_source == "BSDD":
+            self.draw_add_bsdd_ui(context)
+        elif self.sprops.classification_source == "MANUAL":
+            self.draw_add_manual_ui(context)
+
+    def draw_add_manual_ui(self, context):
+        row = self.layout.row()
+        row.label(text="TODO", icon="ERROR")
+
+    def draw_add_bsdd_ui(self, context):
+        if not self.bprops.active_domain:
+            row = self.layout.row()
+            row.label(text="No Active bSDD Domain", icon="ERROR")
+            return
+
+        row = self.layout.row()
+        row.label(text="Active: " + self.bprops.active_domain, icon="URL")
+
+        row = self.layout.row(align=True)
+        row.prop(self.bprops, "keyword", text="")
+        row.operator("bim.search_bsdd_classifications", text="", icon="VIEWZOOM")
+
+        row = self.layout.row()
+        row.prop(self.bprops, "should_filter_ifc_class")
+
+        if len(self.bprops.classifications):
+            self.layout.template_list(
+                "BIM_UL_bsdd_classifications",
+                "",
+                self.bprops,
+                "classifications",
+                self.bprops,
+                "active_classification_index",
+            )
+        else:
+            row = self.layout.row()
+            row.label(text="No Search Results")
+
+        if self.bprops.active_classification_index < len(self.bprops.classifications):
+            row = self.layout.row(align=True)
+            op = row.operator(
+                "bim.add_classification_reference_from_bsdd", text="Add Classification Reference", icon="ADD"
+            )
+            op.obj = self.obj
+            op.obj_type = self.obj_type
+            row.operator("bim.get_bsdd_classification_properties", text="", icon="COPY_ID")
+
+            if len(self.bprops.classification_psets):
+                for pset in self.bprops.classification_psets:
+                    box = self.layout.box()
+                    row = box.row()
+                    row.label(text=pset.name, icon="COPY_ID")
+                    blenderbim.bim.helper.draw_attributes(pset.properties, box)
+
+    def draw_add_file_ui(self, context):
        if not self.data.data["active_classification_library"]:
            row = self.layout.row(align=True)
-            row.label(text="No Active Classification Library")
+            row.label(text="No Active Classification Library", icon="ERROR")
            row.operator("bim.load_classification_library", text="", icon="IMPORT")
            return
+
        row = self.layout.row(align=True)
        row.label(text=f"Active Classification Library: {self.data.data['active_classification_library']}")
-        #row.prop(self.sprops, "available_classifications", text="")
+        # row.prop(self.sprops, "available_classifications", text="")
        if not self.sprops.available_library_references:
            op = row.operator("bim.change_classification_level", text="", icon="GREASEPENCIL")
            op.parent_id = int(self.sprops.available_classifications)
@@ -156,13 +249,13 @@ class ReferenceUI:


 class BIM_PT_classification_references(Panel, ReferenceUI):
-    bl_label = "IFC Classification References"
+    bl_label = "Classification References"
    bl_idname = "BIM_PT_classification_references"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "object"
-    bl_parent_id = "BIM_PT_object_metadata"
+    bl_parent_id = "BIM_PT_tab_object_metadata"

    @classmethod
    def poll(cls, context):
@@ -180,7 +273,7 @@ class BIM_PT_classification_references(Panel, ReferenceUI):


 class BIM_PT_material_classifications(Panel, ReferenceUI):
-    bl_label = "IFC Material Classifications"
+    bl_label = "Material Classifications"
    bl_idname = "BIM_PT_material_classifications"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
@@ -206,7 +299,7 @@ class BIM_PT_material_classifications(Panel, ReferenceUI):


 class BIM_PT_cost_classifications(Panel, ReferenceUI):
-    bl_label = "IFC Cost Classifications"
+    bl_label = "Cost Classifications"
    bl_idname = "BIM_PT_cost_classifications"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
@@ -1,124 +0,0 @@
-# BlenderBIM Add-on - OpenBIM Blender Add-on
-# Copyright (C) 2020, 2021 Dion Moult <dion@thinkmoult.com>
-#
-# This file is part of BlenderBIM Add-on.
-#
-# BlenderBIM Add-on is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# BlenderBIM Add-on is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
-
-import bpy
-import os
-import logging
-import ifcopenshell
-import json
-import webbrowser
-import tempfile
-from blenderbim.bim.ifc import IfcStore
-
-
-class SelectCobieIfcFile(bpy.types.Operator):
-    bl_idname = "bim.select_cobie_ifc_file"
-    bl_label = "Select COBie IFC File"
-    bl_options = {"REGISTER", "UNDO"}
-    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
-
-    def execute(self, context):
-        context.scene.COBieProperties.cobie_ifc_file = self.filepath
-        return {"FINISHED"}
-
-    def invoke(self, context, event):
-        context.window_manager.fileselect_add(self)
-        return {"RUNNING_MODAL"}
-
-
-class SelectCobieJsonFile(bpy.types.Operator):
-    bl_idname = "bim.select_cobie_json_file"
-    bl_label = "Select COBie JSON File"
-    bl_options = {"REGISTER", "UNDO"}
-    filepath: bpy.props.StringProperty(subtype="FILE_PATH")
-
-    def execute(self, context):
-        context.scene.COBieProperties.cobie_json_file = self.filepath
-        return {"FINISHED"}
-
-    def invoke(self, context, event):
-        context.window_manager.fileselect_add(self)
-        return {"RUNNING_MODAL"}
-
-
-class ExecuteIfcCobie(bpy.types.Operator):
-    bl_idname = "bim.execute_ifc_cobie"
-    bl_label = "Execute IFCCOBie"
-    file_format: bpy.props.StringProperty()
-
-    @classmethod
-    def poll(cls, context):
-        props = context.scene.COBieProperties
-        return props.should_load_from_memory or props.cobie_ifc_file
-
-    def execute(self, context):
-        from cobie import IfcCobieParser
-
-        props = context.scene.COBieProperties
-
-        if props.should_load_from_memory:
-            output_dir = tempfile.gettempdir()
-        else:
-            output_dir = os.path.dirname(props.cobie_ifc_file)
-
-        output = os.path.join(output_dir, "output")
-        logger = logging.getLogger("IFCtoCOBie")
-        fh = logging.FileHandler(os.path.join(output_dir, "cobie.log"))
-        fh.setLevel(logging.DEBUG)
-        fh.setFormatter(logging.Formatter("%(asctime)s : %(levelname)s : %(message)s"))
-        logger = logging.getLogger("IFCtoCOBie")
-        logger.addHandler(fh)
-        selector = ifcopenshell.util.selector.Selector()
-        if props.cobie_json_file:
-            with open(props.cobie_json_file, "r") as f:
-                custom_data = json.load(f)
-        else:
-            custom_data = {}
-        parser = IfcCobieParser(logger, selector)
-
-        ifc_file = IfcStore.get_file()
-
-        if not (ifc_file and props.should_load_from_memory):
-            ifc_file = props.cobie_ifc_file
-
-        parser.parse(
-            ifc_file,
-            props.cobie_types,
-            props.cobie_components,
-            custom_data,
-        )
-        if self.file_format == "xlsx":
-            from cobie import CobieXlsWriter
-
-            writer = CobieXlsWriter(parser, output)
-            writer.write()
-            webbrowser.open("file://" + output + "." + self.file_format)
-        elif self.file_format == "ods":
-            from cobie import CobieOdsWriter
-
-            writer = CobieOdsWriter(parser, output)
-            writer.write()
-            webbrowser.open("file://" + output + "." + self.file_format)
-        else:
-            from cobie import CobieCsvWriter
-
-            writer = CobieCsvWriter(parser, output_dir)
-            writer.write()
-            webbrowser.open("file://" + output_dir)
-        webbrowser.open("file://" + output_dir + "/cobie.log")
-        return {"FINISHED"}
@@ -23,7 +23,7 @@ from blenderbim.bim.module.constraint.data import ConstraintsData, ObjectConstra


 class BIM_PT_constraints(Panel):
-    bl_label = "IFC Constraints"
+    bl_label = "Constraints"
    bl_idname = "BIM_PT_constraints"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
@@ -68,14 +68,14 @@ class BIM_PT_constraints(Panel):


 class BIM_PT_object_constraints(Panel):
-    bl_label = "IFC Constraints"
+    bl_label = "Constraints"
    bl_idname = "BIM_PT_object_constraints"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "object"
    bl_order = 1
-    bl_parent_id = "BIM_PT_misc_object"
+    bl_parent_id = "BIM_PT_tab_misc"

    @classmethod
    def poll(cls, context):
@@ -23,7 +23,7 @@ from blenderbim.bim.module.context.data import ContextData


 class BIM_PT_context(bpy.types.Panel):
-    bl_label = "IFC Geometric Representation Contexts"
+    bl_label = "Geometric Representation Contexts"
    bl_idname = "BIM_PT_context"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
@@ -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"
@@ -163,7 +191,7 @@ class RemoveCostItem(bpy.types.Operator, tool.Ifc.Operator):
    cost_item: bpy.props.IntProperty()

    def _execute(self, context):
-        core.remove_cost_item(tool.Ifc, tool.Cost, cost_item=tool.Ifc.get().by_id(self.cost_item))
+        core.remove_cost_item(tool.Ifc, tool.Cost, cost_item_id=self.cost_item)


 class EnableEditingCostItem(bpy.types.Operator, tool.Ifc.Operator):
@@ -631,17 +659,21 @@ class ExportCostSchedules(bpy.types.Operator):
    bl_description = "Export a cost schedule to a CSV, XSLX OR ODS file"
    cost_schedule: bpy.props.IntProperty()
    format: bpy.props.EnumProperty("Format", items=(("CSV", "CSV", ""), ("XLSX", "XLSX", ""), ("ODS", "ODS", "")))
+    filepath: bpy.props.StringProperty(subtype="FILE_PATH")

    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, 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"}

    def invoke(self, context, event):
        wm = context.window_manager
-        return wm.invoke_props_dialog(self)
+        wm.fileselect_add(self)
+        return {"RUNNING_MODAL"}

    def draw(self, context):
        self.layout.label(text="Choose a format")
@@ -24,13 +24,13 @@ from blenderbim.bim.module.cost.data import CostSchedulesData


 class BIM_PT_cost_schedules(Panel):
-    bl_label = "IFC Cost Schedules"
+    bl_label = "Cost Schedules"
    bl_idname = "BIM_PT_cost_schedules"
-    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_4D5D"
+    bl_parent_id = "BIM_PT_tab_cost"
+    bl_options = {"HIDE_HEADER"}

    @classmethod
    def poll(cls, context):
@@ -42,19 +42,19 @@ class BIM_PT_cost_schedules(Panel):
            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 found.", icon="COMMUNITY")
-            row = self.layout.row()
-            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)
@@ -139,8 +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):
@@ -267,7 +267,7 @@ class BIM_PT_cost_schedules(Panel):


 class BIM_PT_cost_item_types(Panel):
-    bl_label = "IFC Cost Item Types"
+    bl_label = "Cost Item Types"
    bl_idname = "BIM_PT_cost_item_types"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
@@ -353,7 +353,7 @@ class BIM_PT_cost_item_types(Panel):


 class BIM_PT_cost_item_quantities(Panel):
-    bl_label = "IFC Cost Item Quantities"
+    bl_label = "Cost Item Quantities"
    bl_idname = "BIM_PT_cost_item_quantities"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
@@ -525,7 +525,7 @@ class BIM_PT_cost_item_quantities(Panel):


 class BIM_PT_cost_item_rates(Panel):
-    bl_label = "IFC Cost Item Rates"
+    bl_label = "Cost Item Rates"
    bl_idname = "BIM_PT_cost_item_rates"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
@@ -620,18 +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(",", " ")
@@ -643,8 +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:
@@ -657,20 +664,6 @@ class BIM_UL_cost_items_trait:
                op.cost_item = ifc_definition_id
                op.new_index = cost_item["NestingIndex"] - 1

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

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

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


-class COBieProperties(PropertyGroup):
-    cobie_ifc_file: StringProperty(default="", name="COBie IFC File")
-    cobie_types: StringProperty(default=".COBieType", name="COBie Types")
-    cobie_components: StringProperty(default=".COBie", name="COBie Components")
-    cobie_json_file: StringProperty(default="", name="COBie JSON File")
-    should_load_from_memory: BoolProperty(default=False, name="Load from Memory")
+class BIMCoveringProperties(PropertyGroup):
+    pass
+#    depth: bpy.props.FloatProperty(name="Depth", default=0.1, subtype="DISTANCE", description="Flooring depth")
@@ -0,0 +1,166 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2023 @Andrej730
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import os
+import bpy
+import blenderbim.tool as tool
+from blenderbim.bim.helper import prop_with_search
+from blenderbim.bim.module.model.data import AuthoringData
+from bpy.types import WorkSpaceTool
+from blenderbim.bim.ifc import IfcStore
+import blenderbim.bim.handler
+
+
+# declaring it here to avoid circular import problems
+class Operator:
+    def execute(self, context):
+        IfcStore.execute_ifc_operator(self, context)
+        blenderbim.bim.handler.refresh_ui_data()
+        return {"FINISHED"}
+
+class CoveringTool(WorkSpaceTool):
+    bl_space_type = "VIEW_3D"
+    bl_context_mode = "OBJECT"
+    bl_idname = "bim.covering_tool"
+    bl_label = "Covering Tool"
+    bl_description = "Create and edit coverings"
+    bl_icon = os.path.join(os.path.dirname(__file__), "ops.authoring.covering")
+    bl_widget = None
+    bl_keymap = tool.Blender.get_default_selection_keypmap() + (
+        ("bim.covering_hotkey", {"type": "A", "value": "PRESS", "shift": True}, {"properties": [("hotkey", "S_A")]}),
+    )
+
+    @classmethod
+    def draw_settings(cls, context, layout, ws_tool):
+        CoveringToolUI.draw(context, layout, ifc_element_type="IfcCoveringType")
+
+def add_layout_hotkey(layout, text, hotkey, description):
+    args = ["covering", layout, text, hotkey, description]
+    tool.Blender.add_layout_hotkey_operator(*args)
+
+class CoveringToolUI:
+    @classmethod
+    def draw(cls, context, layout, ifc_element_type = None):
+        cls.layout = layout
+        cls.props = context.scene.BIMModelProperties
+        cls.covering_props = context.scene.BIMCoveringProperties
+
+        row = cls.layout.row(align=True)
+        if not tool.Ifc.get():
+            row.label(text="No IFC Project", icon="ERROR")
+            return
+
+        if not AuthoringData.is_loaded:
+            AuthoringData.load(ifc_element_type)
+        elif AuthoringData.data["ifc_element_type"] != ifc_element_type:
+            AuthoringData.load(ifc_element_type)
+
+
+        if context.region.type == "TOOL_HEADER":
+            cls.draw_header_interface()
+        elif context.region.type in ("UI", "WINDOW"):
+            cls.draw_basic_bim_tool_interface()
+
+        cls.draw_default_interface()
+
+
+
+    @classmethod
+    def draw_header_interface(cls):
+        cls.draw_type_selection_interface()
+
+    @classmethod
+    def draw_default_interface(cls):
+        if AuthoringData.data["ifc_classes"]:
+            row = cls.layout.row(align=True)
+            row.label(text="", icon="EVENT_SHIFT")
+            row.label(text="", icon="EVENT_A")
+            active_obj = bpy.context.active_object
+            element = tool.Ifc.get_entity(active_obj)
+            if element and bpy.context.selected_objects and element.is_a("IfcWall"):
+                op = row.operator("bim.add_instance_flooring_coverings_from_walls")
+            else:
+                op = row.operator("bim.add_constr_type_instance", text="Add")
+                op.from_invoke = True
+                if cls.props.relating_type_id.isnumeric():
+                    op.relating_type_id = int(cls.props.relating_type_id)
+
+    @classmethod
+    def draw_type_selection_interface(cls):
+        # shared by both sidebar and header
+        row = cls.layout.row(align=True)
+        if AuthoringData.data["ifc_classes"]:
+            row = cls.layout.row(align=True)
+            row.label(text="", icon="FILE_3D")
+            prop_with_search(row, cls.props, "relating_type_id", text="")
+            row.operator("bim.launch_type_manager", icon="LIGHTPROBE_GRID", text="")
+        else:
+            row.label(text=f"No {AuthoringData.data['ifc_element_type']} Found", icon="ERROR")
+            row = cls.layout.row()
+            row.operator("bim.launch_type_manager", icon="LIGHTPROBE_GRID", text="Launch Type Manager")
+
+    @classmethod
+    def draw_basic_bim_tool_interface(cls):
+        cls.draw_type_selection_interface()
+
+        if AuthoringData.data["ifc_classes"]:
+            if cls.props.ifc_class:
+                box = cls.layout.box()
+                if AuthoringData.data["type_thumbnail"]:
+                    box.template_icon(icon_value=AuthoringData.data["type_thumbnail"], scale=5)
+                else:
+                    op = box.operator("bim.load_type_thumbnails", text="Load Thumbnails", icon="FILE_REFRESH")
+                    op.ifc_class = cls.props.ifc_class
+
+
+class Hotkey(bpy.types.Operator, Operator):
+    bl_idname = "bim.covering_hotkey"
+    bl_label = "Hotkey"
+    bl_options = {"REGISTER", "UNDO"}
+    hotkey: bpy.props.StringProperty()
+    description: bpy.props.StringProperty()
+
+    @classmethod
+    def poll(cls, context):
+        return tool.Ifc.get()
+
+    @classmethod
+    def description(cls, context, operator):
+        return operator.description or ""
+
+    def _execute(self, context):
+#        self.props = context.scene.BIMCoveringProperties
+        getattr(self, f"hotkey_{self.hotkey}")()
+
+    def invoke(self, context, event):
+        # https://blender.stackexchange.com/questions/276035/how-do-i-make-operators-remember-their-property-values-when-called-from-a-hotkey
+        # self.props = context.scene.BIMSpatialProperties
+        return self.execute(context)
+
+    def draw(self, context):
+        pass
+
+    def hotkey_S_A(self):
+        active_obj = bpy.context.active_object
+        element = tool.Ifc.get_entity(active_obj)
+        if element and bpy.context.selected_objects and element.is_a("IfcWall"):
+            bpy.ops.bim.add_instance_flooring_coverings_from_walls()
+        else:
+            bpy.ops.bim.add_constr_type_instance()
+
@@ -26,7 +26,7 @@ class BIM_PT_covetool(bpy.types.Panel):
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_integrations"
+    bl_parent_id = "BIM_PT_tab_sandbox"

    def draw(self, context):
        layout = self.layout
@@ -21,14 +21,15 @@ from . import ui, prop, operator

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

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


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


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

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

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

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

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

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

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

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

        return {"FINISHED"}

@@ -128,12 +149,13 @@ class ExportCsvAttributes(bpy.types.Operator):

 class ExportIfcCsv(bpy.types.Operator):
    bl_idname = "bim.export_ifccsv"
-    bl_label = "Export IFC to CSV"
+    bl_label = "Export IFC"
    filename_ext = ".csv"
    filepath: bpy.props.StringProperty(subtype="FILE_PATH")

    def invoke(self, context, event):
-        self.filepath = bpy.path.ensure_ext(bpy.data.filepath, ".csv")
+        props = context.scene.CsvProperties
+        self.filepath = bpy.path.ensure_ext(bpy.data.filepath, f".{props.format}")
        WindowManager = context.window_manager
        WindowManager.fileselect_add(self)
        return {"RUNNING_MODAL"}
@@ -142,24 +164,61 @@ class ExportIfcCsv(bpy.types.Operator):
        import ifccsv

        props = context.scene.CsvProperties
-        self.filepath = bpy.path.ensure_ext(self.filepath, ".csv")
+        self.filepath = bpy.path.ensure_ext(self.filepath, f".{props.format}")
        if props.should_load_from_memory:
            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=args.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):
@@ -178,25 +237,20 @@ class ImportIfcCsv(bpy.types.Operator):
            ifc_file = ifcopenshell.open(props.csv_ifc_file)
        ifc_csv = ifccsv.IfcCsv()
        sep = props.csv_custom_delimiter if props.csv_delimiter == "CUSTOM" else props.csv_delimiter
-        ifc_csv.Import(ifc_file, self.filepath, delimiter=sep)
+        attributes = [a.name for a in props.csv_attributes]
+        ifc_csv.Import(
+            ifc_file,
+            self.filepath,
+            attributes=attributes,
+            delimiter=sep,
+            null=props.null_value,
+            empty=props.empty_value,
+            bool_true=props.true_value,
+            bool_false=props.false_value,
+        )
        if not props.should_load_from_memory:
            ifc_file.write(props.csv_ifc_file)
-        purge_module_data()
-        return {"FINISHED"}
-
-
-class EyedropIfcCsv(bpy.types.Operator):
-    bl_idname = "bim.eyedrop_ifccsv"
-    bl_label = "Query Selected Items"
-    bl_options = {"REGISTER", "UNDO"}
-
-    def execute(self, context):
-        global_ids = []
-        self.file = IfcStore.get_file()
-        for obj in context.selected_objects:
-            if hasattr(obj, "BIMObjectProperties") and obj.BIMObjectProperties.ifc_definition_id:
-                global_ids.append("#" + self.file.by_id(obj.BIMObjectProperties.ifc_definition_id).GlobalId)
-        context.scene.CsvProperties.ifc_selector = "|".join(global_ids)
+        refresh_ui_data()
        return {"FINISHED"}


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

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


+class CsvAttribute(PropertyGroup):
+    name: StringProperty(name="Query", default="class")
+    header: StringProperty(name="Header Value", default="IFC Class")
+    sort: EnumProperty(items=[("NONE", "None", ""), ("ASC", "Ascending", ""), ("DESC", "Descending", "")])
+    group: EnumProperty(
+        items=[
+            ("NONE", "None", "Don't group any rows"),
+            ("GROUP", "Group", "All rows where this value is identical will be merged"),
+            ("CONCAT", "Concatenation", "Concatenate values if values vary within a group"),
+            ("VARIES", "Varies", "Show a custom value if values vary within a group"),
+            ("SUM", "Sum", "Sums the total value of rows in a group"),
+            ("AVERAGE", "Average", "Averages the total value of rows in a group"),
+            ("MIN", "Min", "Gets the minimum value of rows in a group"),
+            ("MAX", "Max", "Gets the maximum value of rows in a group"),
+        ]
+    )
+    varies_value: StringProperty(default="Varies", name="Varies Value")
+    summary: EnumProperty(
+        items=[
+            ("NONE", "None", "Don't provide a summary row"),
+            ("SUM", "Sum", "Sums the total value of all rows"),
+            ("AVERAGE", "Average", "Averages the total value of all rows"),
+            ("MIN", "Min", "Gets the minimum value of all rows"),
+            ("MAX", "Max", "Gets the maximum value of all rows"),
+        ]
+    )
+    formatting: StringProperty(default="{{value}}", name="Formatting")
+
+
 class CsvProperties(PropertyGroup):
    csv_ifc_file: StringProperty(default="", name="IFC File")
    ifc_selector: StringProperty(default="", name="IFC Selector")
-    csv_attributes: CollectionProperty(name="CSV Attributes", type=StrProperty)
+    filter_groups: CollectionProperty(type=BIMFilterGroup, name="Filter Groups")
+    csv_attributes: CollectionProperty(name="CSV Attributes", type=CsvAttribute)
+    should_preserve_existing: BoolProperty(default=False, name="Preserve Existing")
+    include_global_id: BoolProperty(default=True, name="Include GlobalId")
+    null_value: StringProperty(default="N/A", name="Null Value")
+    empty_value: StringProperty(default="-", name="Empty String Value")
+    true_value: StringProperty(default="YES", name="True Value")
+    false_value: StringProperty(default="NO", name="False Value")
    csv_delimiter: EnumProperty(
        items=[
            (";", ";", ""),
@@ -45,5 +82,19 @@ class CsvProperties(PropertyGroup):
        name="IFC CSV Delimiter",
        default=",",
    )
+    format: EnumProperty(
+        items=[
+            ("csv", "csv", ""),
+            ("xlsx", "xlsx", ""),
+            ("ods", "ods", ""),
+        ],
+        name="Output format",
+        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")
@@ -16,18 +16,20 @@
 # 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 = "IFC CSV Import/Export"
+    bl_label = "Spreadsheet Import/Export"
    bl_idname = "BIM_PT_ifccsv"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_collaboration"
+    bl_parent_id = "BIM_PT_tab_collaboration"

    def draw(self, context):
        layout = self.layout
@@ -36,41 +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, "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")
-        c = split.column()
-        c.operator("bim.import_ifccsv", icon="IMPORT")
+        row.operator("bim.export_ifccsv", icon="EXPORT", text="Export IFC to " + props.format.upper())
+        row.operator("bim.import_ifccsv", icon="IMPORT")
@@ -20,22 +20,26 @@ import bpy
 from . import ui, prop, operator

 classes = (
+    operator.ConvertToBlender,
+    operator.CopyDebugInformation,
    operator.CreateAllShapes,
    operator.CreateShapeFromStepId,
    operator.InspectFromObject,
    operator.InspectFromStepId,
+    operator.OverrideDisplayType,
    operator.ParseExpress,
    operator.PrintIfcFile,
    operator.PrintObjectPlacement,
    operator.ProfileImportIFC,
    operator.PurgeHdf5Cache,
    operator.PurgeIfcLinks,
-    operator.ConvertToBlender,
    operator.RewindInspector,
    operator.SelectExpressFile,
    operator.SelectHighPolygonMeshes,
    operator.SelectHighestPolygonMeshes,
    operator.ValidateIfcFile,
+    operator.PrintUnusedElementStats,
+    operator.PurgeUnusedElementsByClass,
    prop.BIMDebugProperties,
    ui.BIM_PT_debug,
 )
@@ -20,6 +20,9 @@ import os
 import bpy
 import time
 import logging
+import platform
+import subprocess
+import addon_utils
 import ifcopenshell
 import ifcopenshell.util.placement
 import ifcopenshell.util.representation
@@ -31,6 +34,58 @@ import blenderbim.tool as tool
 from blenderbim.bim.ifc import IfcStore


+class CopyDebugInformation(bpy.types.Operator):
+    bl_idname = "bim.copy_debug_information"
+    bl_label = "Copy Debug Information"
+    bl_description = "Copies debugging information to your clipboard for use in bugreports"
+
+    def execute(self, context):
+        version = ".".join(
+            [
+                str(x)
+                for x in [
+                    addon.bl_info.get("version", (-1, -1, -1))
+                    for addon in addon_utils.modules()
+                    if addon.bl_info["name"] == "BlenderBIM"
+                ][0]
+            ]
+        )
+        info = {
+            "os": platform.system(),
+            "os_version": platform.version(),
+            "python_version": platform.python_version(),
+            "architecture": platform.architecture(),
+            "machine": platform.machine(),
+            "processor": platform.processor(),
+            "blender_version": bpy.app.version_string,
+            "blenderbim_version": version,
+            "ifc": False,
+        }
+
+        if tool.Ifc.get():
+            info.update(
+                {
+                    "ifc": os.path.basename(tool.Ifc.get_path()) if os.path.isfile(tool.Ifc.get_path()) else "Unsaved",
+                    "schema": tool.Ifc.get().schema,
+                    "preprocessor_version": tool.Ifc.get().wrapped_data.header.file_name.preprocessor_version,
+                    "originating_system": tool.Ifc.get().wrapped_data.header.file_name.originating_system,
+                }
+            )
+
+        # Format it in a readable way
+        text = "\n".join(f"{k}: {v}" for k, v in info.items())
+        print(text)
+
+        if platform.system() == "Windows":
+            command = "echo | set /p nul=" + text.strip()
+        elif platform.system() == "Darwin":  # for MacOS
+            command = 'printf "' + text.strip().replace("\n", "\\n").replace('"', "") + '" | pbcopy'
+        else:  # Linux
+            command = 'printf "' + text.strip().replace("\n", "\\n").replace('"', "") + '" | xclip -selection clipboard'
+        subprocess.run(command, shell=True, check=True)
+        return {"FINISHED"}
+
+
 class PrintIfcFile(bpy.types.Operator):
    bl_idname = "bim.print_ifc_file"
    bl_label = "Print IFC File"
@@ -61,19 +116,19 @@ 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"}


 class ConvertToBlender(bpy.types.Operator):
-    bl_idname = "bim.converttoblender"
+    bl_idname = "bim.convert_to_blender"
    bl_label = "Convert To Blender File"
    bl_description = "Removes all IFC data, and converts the file to a simple Blender file."
    bl_options = {"REGISTER", "UNDO"}

    def execute(self, context):
        for o in bpy.data.objects:
-            if o.type in {'MESH', 'EMPTY'}:
+            if o.type in {"MESH", "EMPTY"}:
                o.BIMObjectProperties.ifc_definition_id = 0
                if o.data:
                    o.data.BIMMeshProperties.ifc_definition_id = 0
@@ -81,7 +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"}


@@ -99,6 +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"}


@@ -135,6 +192,8 @@ class CreateAllShapes(bpy.types.Operator):

        total = len(elements)
        settings = ifcopenshell.geom.settings()
+        settings_2d = ifcopenshell.geom.settings()
+        settings_2d.set(settings_2d.INCLUDE_CURVES, True)
        failures = []
        excludes = ()  # For the developer to debug with
        for i, element in enumerate(elements):
@@ -142,8 +201,16 @@ class CreateAllShapes(bpy.types.Operator):
                continue
            print(f"{i}/{total}:", element)
            start = time.time()
+            shape = None
            try:
                shape = ifcopenshell.geom.create_shape(settings, element)
+            except:
+                try:
+                    shape = ifcopenshell.geom.create_shape(settings_2d, element)
+                except:
+                    failures.append(element)
+                    print("***** FAILURE *****")
+            if shape:
                print(
                    "Success",
                    time.time() - start,
@@ -151,9 +218,6 @@ class CreateAllShapes(bpy.types.Operator):
                    len(shape.geometry.edges),
                    len(shape.geometry.faces),
                )
-            except:
-                failures.append(element)
-                print("***** FAILURE *****")
        print(f"Failures: {len(failures)}")
        for failure in failures:
            print(failure)
@@ -166,6 +230,7 @@ class CreateShapeFromStepId(bpy.types.Operator):
    bl_description = "Recreate a mesh object from a STEP ID"
    bl_options = {"REGISTER", "UNDO"}
    should_include_curves: bpy.props.BoolProperty()
+    step_id: bpy.props.IntProperty(default=0)

    @classmethod
    def poll(cls, context):
@@ -178,7 +243,7 @@ class CreateShapeFromStepId(bpy.types.Operator):
        logger = logging.getLogger("ImportIFC")
        self.ifc_import_settings = import_ifc.IfcImportSettings.factory(context, IfcStore.path, logger)
        self.file = IfcStore.get_file()
-        element = self.file.by_id(int(context.scene.BIMDebugProperties.step_id))
+        element = self.file.by_id(self.step_id or int(context.scene.BIMDebugProperties.step_id))
        settings = ifcopenshell.geom.settings()
        if self.should_include_curves:
            settings.set(settings.INCLUDE_CURVES, True)
@@ -316,10 +381,30 @@ class InspectFromObject(bpy.types.Operator):
 class PrintObjectPlacement(bpy.types.Operator):
    bl_idname = "bim.print_object_placement"
    bl_label = "Print Object Placement"
+    bl_options = {"REGISTER", "UNDO"}
+    bl_description = (
+        "Print object placement to the system console.\n\n" + "ALT+CLICK create an empty object at that position"
+    )
    step_id: bpy.props.IntProperty()
+    create_empty_object: bpy.props.BoolProperty(name="Create Empty Object", default=False, options={"SKIP_SAVE"})
+    arrow_size: bpy.props.FloatProperty(name="Arrow Size", default=0.2, subtype="DISTANCE")
+
+    def invoke(self, context, event):
+        # keep the viewport position on alt+click
+        # make sure to use SKIP_SAVE on property, otherwise it might get stuck
+        if event.type == "LEFTMOUSE" and event.alt:
+            self.create_empty_object = True
+        return self.execute(context)

    def execute(self, context):
-        print(ifcopenshell.util.placement.get_local_placement(IfcStore.get_file().by_id(self.step_id)))
+        placement = ifcopenshell.util.placement.get_local_placement(IfcStore.get_file().by_id(self.step_id))
+        if self.create_empty_object:
+            bpy.ops.object.empty_add(type="ARROWS")
+            si_conversion = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
+            context.active_object.matrix_world = placement.transpose()
+            context.active_object.matrix_world.translation *= si_conversion
+            context.active_object.empty_display_size = self.arrow_size
+        print(placement)
        return {"FINISHED"}


@@ -358,3 +443,55 @@ class PurgeHdf5Cache(bpy.types.Operator):
    def execute(self, context):
        core.purge_hdf5_cache(tool.Debug)
        return {"FINISHED"}
+
+
+class OverrideDisplayType(bpy.types.Operator):
+    bl_idname = "bim.override_display_type"
+    bl_label = "Override Display Type"
+    display: bpy.props.StringProperty()
+
+    def execute(self, context):
+        for obj in context.selected_objects:
+            obj.display_type = self.display
+        return {"FINISHED"}
+
+
+class PrintUnusedElementStats(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.print_unused_elements_stats"
+    bl_label = "Purge Unused Elements Stats"
+    bl_options = {"REGISTER", "UNDO"}
+    bl_description = (
+        "Print all unused elements in current IFC project in system console, not limited to the selected class"
+    )
+
+    ignore_contexts: bpy.props.BoolProperty(name="Ignore Contexts", default=True)
+    ignore_relationships: bpy.props.BoolProperty(name="Ignore Relationships", default=True)
+    ignore_types: bpy.props.BoolProperty(name="Ignore Types", default=True)
+
+    def _execute(self, context):
+        props = context.scene.BIMDebugProperties
+        # ignore some classes that could have zero 0 inverse references by their nature
+        ignore_classes = []
+        if self.ignore_contexts:
+            ignore_classes += ["IfcRepresentationContext"]
+        if self.ignore_relationships:
+            ignore_classes += ["IfcRelationship"]
+        if self.ignore_types:
+            ignore_classes += ["IfcTypeProduct"]
+
+        unused_elements = tool.Debug.print_unused_elements_stats(props.ifc_class_purge, ignore_classes)
+        self.report({"INFO"}, f"{unused_elements} unused elements found, check the system console for the details.")
+
+
+class PurgeUnusedElementsByClass(bpy.types.Operator, tool.Ifc.Operator):
+    bl_idname = "bim.purge_unused_elements_by_class"
+    bl_label = "Purge Unused Elements By Class"
+    bl_description = (
+        "Will find all elements of class that have no inverse refernces and will remove them, use very carefully."
+    )
+    bl_options = {"REGISTER", "UNDO"}
+
+    def _execute(self, context):
+        props = context.scene.BIMDebugProperties
+        purged_elements = core.purge_unused_elements(tool.Ifc, tool.Debug, props.ifc_class_purge)
+        self.report({"INFO"}, f"{purged_elements} unused elements found and removed.")
@@ -40,3 +40,14 @@ class BIMDebugProperties(PropertyGroup):
    inverse_attributes: CollectionProperty(name="Inverse Attributes", type=Attribute)
    inverse_references: CollectionProperty(name="Inverse References", type=Attribute)
    express_file: StringProperty(name="Express File")
+    display_type: EnumProperty(
+        items=[
+            ("BOUNDS", "Bounds", ""),
+            ("WIRE", "Wire", ""),
+            ("SOLID", "Solid", ""),
+            ("TEXTURED", "Textured", ""),
+        ],
+        name="Display Type",
+        default="BOUNDS",
+    )
+    ifc_class_purge: StringProperty(name="Unused Elements IFC Class", default="")
@@ -21,13 +21,13 @@ from bpy.types import Panel


 class BIM_PT_debug(Panel):
-    bl_label = "IFC Debug"
+    bl_label = "Debug"
    bl_idname = "BIM_PT_debug"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_quality_control"
+    bl_parent_id = "BIM_PT_tab_quality_control"

    def draw(self, context):
        layout = self.layout
@@ -48,6 +48,9 @@ class BIM_PT_debug(Panel):
        row = layout.row()
        row.operator("bim.print_ifc_file")

+        row = layout.row()
+        row.operator("bim.copy_debug_information")
+
        row = layout.row()
        row.operator("bim.purge_hdf5_cache")

@@ -55,7 +58,10 @@ class BIM_PT_debug(Panel):
        row.operator("bim.purge_ifc_links")

        row = layout.row()
-        row.operator("bim.converttoblender")
+        row.operator("bim.update_representation", text="Manually Save Representation")
+
+        row = layout.row()
+        row.operator("bim.convert_to_blender")

        row = layout.row()
        row.operator("bim.create_all_shapes")
@@ -77,6 +83,20 @@ class BIM_PT_debug(Panel):
        ).percentile = context.scene.BIMDebugProperties.percentile_of_polygons
        row.prop(props, "percentile_of_polygons", text="")

+        row = layout.split(factor=0.5, align=True)
+        row.prop(props, "display_type", text="")
+        row.operator("bim.override_display_type").display = context.scene.BIMDebugProperties.display_type
+
+        if context.active_object and context.active_object.data:
+            mprops = context.active_object.data.BIMMeshProperties
+            row = layout.row()
+            row.operator("bim.get_representation_ifc_parameters")
+            for index, ifc_parameter in enumerate(mprops.ifc_parameters):
+                row = layout.row(align=True)
+                row.prop(ifc_parameter, "name", text="")
+                row.prop(ifc_parameter, "value", text="")
+                row.operator("bim.update_parametric_representation", icon="FILE_REFRESH", text="").index = index
+
        layout.label(text="Inspector:")

        row = layout.row(align=True)
@@ -22,6 +22,7 @@ import ifccsv
 import ifcopenshell
 import blenderbim.bim.handler
 import blenderbim.tool as tool
+from blenderbim.bim.ifc import IfcStore


 class SelectDiffJsonFile(bpy.types.Operator):
@@ -51,8 +52,27 @@ class VisualiseDiff(bpy.types.Operator):
            diff = json.load(file)
        for obj in context.visible_objects:
            obj.color = (1.0, 1.0, 1.0, 1.0)
-            element = tool.Ifc.get_entity(obj)
-            if not element:
+
+            if not obj.BIMObjectProperties.ifc_definition_id:
+                continue
+
+            ifc_file = ""
+            for scene in obj.users_scene:
+                if scene.BIMProperties.ifc_file:
+                    ifc_file = scene.BIMProperties.ifc_file
+                    if scene.library:
+                        break
+
+            if ifc_file:
+                if ifc_file not in IfcStore.session_files:
+                    IfcStore.session_files[ifc_file] = ifcopenshell.open(ifc_file)
+                element_file = IfcStore.session_files[ifc_file]
+            else:
+                element_file = ifc_file
+
+            try:
+                element = element_file.by_id(obj.BIMObjectProperties.ifc_definition_id)
+            except:
                continue
            global_id = getattr(element, "GlobalId", None)
            if not global_id:
@@ -24,13 +24,13 @@ import json


 class BIM_PT_diff(Panel):
-    bl_label = "IFC Diff"
+    bl_label = "Diff"
    bl_idname = "BIM_PT_diff"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"
-    bl_parent_id = "BIM_PT_quality_control"
+    bl_parent_id = "BIM_PT_tab_quality_control"

    def draw(self, context):
        if not DiffData.is_loaded:
@@ -23,7 +23,7 @@ from blenderbim.bim.module.document.data import DocumentData, ObjectDocumentData


 class BIM_PT_documents(Panel):
-    bl_label = "IFC Documents"
+    bl_label = "Documents"
    bl_idname = "BIM_PT_documents"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
@@ -76,14 +76,14 @@ class BIM_PT_documents(Panel):


 class BIM_PT_object_documents(Panel):
-    bl_label = "IFC Documents"
+    bl_label = "Documents"
    bl_idname = "BIM_PT_object_documents"
    bl_options = {"DEFAULT_CLOSED"}
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "object"
    bl_order = 1
-    bl_parent_id = "BIM_PT_misc_object"
+    bl_parent_id = "BIM_PT_tab_misc"

    @classmethod
    def poll(cls, context):
@@ -24,22 +24,27 @@ classes = (
    operator.ActivateDrawingStyle,
    operator.ActivateModel,
    operator.AddAnnotation,
+    operator.AddAnnotationType,
    operator.AddDrawing,
    operator.AddDrawingStyle,
    operator.AddDrawingStyleAttribute,
    operator.AddDrawingToSheet,
+    operator.AddReference,
+    operator.AddReferenceToSheet,
    operator.AddSchedule,
    operator.AddScheduleToSheet,
-    operator.AddReferenceToSheet,
    operator.AddSheet,
    operator.AddTextLiteral,
    operator.BuildSchedule,
    operator.CleanWireframes,
    operator.ContractSheet,
+    operator.ContractTargetView,
    operator.CreateDrawing,
    operator.CreateSheets,
+    operator.DisableAddAnnotationType,
    operator.DisableEditingAssignedProduct,
    operator.DisableEditingDrawings,
+    operator.DisableEditingReferences,
    operator.DisableEditingSchedules,
    operator.DisableEditingSheets,
    operator.DisableEditingText,
@@ -48,34 +53,34 @@ classes = (
    operator.EditSheet,
    operator.EditText,
    operator.EditTextPopup,
+    operator.EnableAddAnnotationType,
    operator.EnableEditingAssignedProduct,
    operator.EnableEditingText,
    operator.ExpandSheet,
+    operator.ExpandTargetView,
    operator.LoadDrawings,
+    operator.LoadReferences,
    operator.LoadSchedules,
    operator.LoadSheets,
    operator.OpenDrawing,
+    operator.OpenReference,
    operator.OpenSchedule,
    operator.OpenSheet,
+    operator.ReloadDrawingStyles,
    operator.RemoveDrawing,
    operator.RemoveDrawingFromSheet,
    operator.RemoveDrawingStyle,
    operator.RemoveDrawingStyleAttribute,
+    operator.RemoveReference,
    operator.RemoveSchedule,
-    operator.ReloadDrawingStyles,
    operator.RemoveSheet,
    operator.RemoveTextLiteral,
-    operator.SelectAllDrawings,
    operator.ResizeText,
    operator.SaveDrawingStyle,
    operator.SaveDrawingStylesData,
+    operator.SelectAllDrawings,
    operator.SelectAssignedProduct,
    operator.SelectDocIfcFile,
-    operator.LoadReferences,
-    operator.DisableEditingReferences,
-    operator.AddReference,
-    operator.RemoveReference,
-    operator.OpenReference,
    prop.Variable,
    prop.Drawing,
    prop.Document,
@@ -89,7 +94,6 @@ classes = (
    prop.BIMAnnotationProperties,
    ui.BIM_PT_camera,
    ui.BIM_PT_drawing_underlay,
-    ui.BIM_PT_annotation_utilities,
    ui.BIM_PT_sheets,
    ui.BIM_PT_drawings,
    ui.BIM_PT_schedules,
@@ -103,13 +107,14 @@ classes = (
    gizmos.DimensionLabelGizmo,
    gizmos.ExtrusionGuidesGizmo,
    gizmos.ExtrusionWidget,
+    workspace.LaunchAnnotationTypeManager,
    workspace.Hotkey,
 )


 def register():
    if not bpy.app.background:
-        bpy.utils.register_tool(workspace.AnnotationTool, after={"bim.bim_tool"}, separator=False, group=True)
+        bpy.utils.register_tool(workspace.AnnotationTool, after={"bim.bim_tool"}, separator=True, group=False)
    bpy.types.Scene.DocProperties = bpy.props.PointerProperty(type=prop.DocProperties)
    bpy.types.Scene.BIMAnnotationProperties = bpy.props.PointerProperty(type=prop.BIMAnnotationProperties)
    bpy.types.Camera.BIMCameraProperties = bpy.props.PointerProperty(type=prop.BIMCameraProperties)
@@ -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
@@ -152,7 +165,15 @@ class Annotator:
    def get_placeholder_coords(camera=None):
        if not camera:
            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
@@ -162,9 +183,14 @@ class Annotator:

        y_offset = camera.matrix_world.to_quaternion() @ Vector((0, y, 0))
        x_offset = camera.matrix_world.to_quaternion() @ Vector((y / 2, 0, 0))
+
+        center = camera.matrix_world.inverted() @ bpy.context.scene.cursor.location
+        center.z = 0
+        center = camera.matrix_world @ center
+
        return (
-            camera.location + z_offset,
-            camera.location + z_offset + y_offset,
-            camera.location + z_offset + x_offset,
-            camera.location + z_offset + x_offset + y_offset,
+            center + z_offset,
+            center + z_offset + y_offset,
+            center + z_offset + x_offset,
+            center + z_offset + x_offset + y_offset,
        )
--- a/Show More
+++ b/Show More