closes #3804 : Add S_K split support for profile-based elements

Extends the existing Split hotkey (⇧ K) to work on elements with IfcMaterialProfileSet usage (beams, columns, members) in addition to layered walls. Adds DumbProfileJoiner.split(), a new SplitProfile operator (bim.split_profile), and a Split button in the workspace panel for PROFILE elements. Generated with the assistance of an AI coding tool.
2026-08-06 16:01:36 +00:00 · 2026-03-29 09:41:09 -05:00
668 changed files with 9427 additions and 67499 deletions
@@ -1,95 +0,0 @@
-#!/usr/bin/env -S uv run
-# /// script
-# dependencies = [
-#     "PyGithub",
-#     "requests",
-# ]
-# ///
-
-import os
-from pathlib import Path
-
-import requests
-from github import Github
-from github.GitReleaseAsset import GitReleaseAsset
-
-EXTENSION_ID = "bonsai"
-CURRENT_PYTHON_VERSION = "py313"
-CURRENT_PLATFORMS = ["linux-x64", "macos-arm64", "windows-x64"]
-
-
-def publish_asset(asset: GitReleaseAsset, token: str, repo_root: Path) -> None:
-    """
-    Publish an asset to Blender Extensions.
-    Reference: https://extensions.blender.org/api/v1/swagger
-    """
-    temp_path = repo_root / asset.name
-
-    response = requests.get(asset.browser_download_url)
-    response.raise_for_status()
-    temp_path.write_bytes(response.content)
-
-    url = f"https://extensions.blender.org/api/v1/extensions/{EXTENSION_ID}/versions/upload/"
-    headers = {"Authorization": f"Bearer {token}"}
-
-    files = {"version_file": temp_path.read_bytes()}
-    response = requests.post(url, headers=headers, files=files)
-    response.raise_for_status()
-
-    temp_path.unlink()
-
-    print(f"✓ Published {asset.name}")
-
-
-def main() -> None:
-    token = os.getenv("BLENDER_EXTENSIONS_TOKEN")
-    if not token:
-        raise Exception("BLENDER_EXTENSIONS_TOKEN environment variable not set")
-
-    # Get the repository root
-    repo_root = Path(__file__).parent.parent.parent
-
-    # Read VERSION file
-    version_file = repo_root / "VERSION"
-    version = version_file.read_text().strip()
-
-    print(f"Current VERSION: {version}")
-
-    tag_name = f"bonsai-{version}"
-
-    # Get release from GitHub
-    gh = Github()
-    gh_repo = gh.get_repo("IfcOpenShell/IfcOpenShell")
-    release = gh_repo.get_release(tag_name)
-
-    assets = release.get_assets()
-
-    asset_platform_map: dict[str, tuple[GitReleaseAsset, str]] = {}
-    for asset in assets:
-        if CURRENT_PYTHON_VERSION not in asset.name:
-            continue
-        for platform in CURRENT_PLATFORMS:
-            if platform in asset.name:
-                asset_platform_map[asset.name] = (asset, platform)
-                break
-
-    if len(asset_platform_map) != len(CURRENT_PLATFORMS):
-        found_platforms = {platform for _, (_, platform) in asset_platform_map.items()}
-        missing_platforms = set(CURRENT_PLATFORMS) - found_platforms
-        raise Exception(
-            f"Expected {len(CURRENT_PLATFORMS)} assets but found {len(asset_platform_map)}. "
-            f"Missing: {', '.join(sorted(missing_platforms))}"
-        )
-
-    print("\nRelease assets:")
-    for asset_name in sorted(asset_platform_map.keys()):
-        print(f"- {asset_name}")
-
-    # https://extensions.blender.org/api/v1/swagger
-    print("\nPublishing assets to Blender Extensions:")
-    for asset_name, (asset, platform) in asset_platform_map.items():
-        publish_asset(asset, token, repo_root)
-
-
-if __name__ == "__main__":
-    main()
@@ -53,7 +53,7 @@ jobs:
          python ../nix/cache_dependencies.py unpack

      - name: ccache
-        uses: hendrikmuhs/ccache-action@v1.2.23
+        uses: hendrikmuhs/ccache-action@v1.2.22
        with:
          key: mac-${{ matrix.arch }}

@@ -29,7 +29,7 @@ jobs:
          python ../IfcOpenShell/nix/cache_dependencies.py unpack

      - name: ccache
-        uses: hendrikmuhs/ccache-action@v1.2.23
+        uses: hendrikmuhs/ccache-action@v1.2.22
        with:
          key: ubuntu-22.04-${{ runner.arch }}

@@ -9,13 +9,6 @@ jobs:
    container: rockylinux:9

    steps:
-      - name: Set up uv
-        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78 # v7.6.0
-
-      - name: Install Python
-        # Installs latest Python version so it's preferred by uv over Rocky's system Python.
-        run: uv python install
-
      - name: Install Dependencies
        run: |
          dnf update -y
@@ -24,6 +17,7 @@ jobs:
                         sqlite-devel bzip2-devel zlib-devel openssl-devel xz-devel      \
                         readline-devel ncurses-devel libffi-devel libuuid-devel git-lfs \
                         findutils xz byacc
+          python3 -m pip install typing_extensions
          git config --global --add safe.directory '*'

      - name: Install aws cli
@@ -51,10 +45,10 @@ jobs:
      - name: Unpack Dependencies
        run: |
          cd build
-          uv run ../nix/cache_dependencies.py unpack
+          python3 ../nix/cache_dependencies.py unpack

      - name: ccache
-        uses: hendrikmuhs/ccache-action@v1.2.23
+        uses: hendrikmuhs/ccache-action@v1.2.22
        with:
          key: ubuntu-22.04-${{ runner.arch }}-rockylinux9

@@ -62,7 +56,7 @@ jobs:
        shell: bash
        run: |
          set -o pipefail
-          CXXFLAGS="-O3" CFLAGS="-O3 ${DARWIN_C_SOURCE}" ADD_COMMIT_SHA=1 BUILD_CFG=Release uv run ./nix/build-all.py -v --diskcleanup 2>&1 | tee build.log
+          CXXFLAGS="-O3" CFLAGS="-O3 ${DARWIN_C_SOURCE}" ADD_COMMIT_SHA=1 BUILD_CFG=Release python3 ./nix/build-all.py -v --diskcleanup 2>&1 | tee build.log

      - name: Upload Build Logs
        if: always()
@@ -77,7 +71,7 @@ jobs:
      - name: Pack Dependencies
        run: |
          cd build
-          uv run ../nix/cache_dependencies.py pack
+          python3 ../nix/cache_dependencies.py pack

      - name: Commit and Push Changes to Build Repository
        run: |
@@ -9,13 +9,6 @@ jobs:
    container: arm64v8/rockylinux:9

    steps:
-      - name: Set up uv
-        uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78 # v7.6.0
-
-      - name: Install Python
-        # Installs latest Python version so it's preferred by uv over Rocky's system Python.
-        run: uv python install
-
      - name: Install Dependencies
        run: |
          dnf update -y
@@ -24,6 +17,7 @@ jobs:
                         sqlite-devel bzip2-devel zlib-devel openssl-devel xz-devel      \
                         readline-devel ncurses-devel libffi-devel libuuid-devel git-lfs \
                         findutils xz byacc
+          python3 -m pip install typing_extensions
          git config --global --add safe.directory '*'

      - name: Install aws cli
@@ -51,10 +45,10 @@ jobs:
      - name: Unpack Dependencies
        run: |
          cd build
-          uv run ../nix/cache_dependencies.py unpack
+          python3 ../nix/cache_dependencies.py unpack

      - name: ccache
-        uses: hendrikmuhs/ccache-action@v1.2.23
+        uses: hendrikmuhs/ccache-action@v1.2.22
        with:
          key: ubuntu-22.04-${{ runner.arch }}-rockylinux9

@@ -62,7 +56,7 @@ jobs:
        shell: bash
        run: |
          set -o pipefail
-          CXXFLAGS="-O3" CFLAGS="-O3 ${DARWIN_C_SOURCE}" ADD_COMMIT_SHA=1 BUILD_CFG=Release uv run ./nix/build-all.py -v --diskcleanup 2>&1 | tee build.log
+          CXXFLAGS="-O3" CFLAGS="-O3 ${DARWIN_C_SOURCE}" ADD_COMMIT_SHA=1 BUILD_CFG=Release python3 ./nix/build-all.py -v --diskcleanup 2>&1 | tee build.log

      - name: Upload Build Logs
        if: always()
@@ -77,7 +71,7 @@ jobs:
      - name: Pack Dependencies
        run: |
          cd build
-          uv run ../nix/cache_dependencies.py pack
+          python3 ../nix/cache_dependencies.py pack

      - name: Commit and Push Changes to Build Repository
        run: |
@@ -52,7 +52,7 @@ jobs:
          }

      - name: ccache
-        uses: hendrikmuhs/ccache-action@v1.2.23
+        uses: hendrikmuhs/ccache-action@v1.2.22
        with:
          key: win-${{ matrix.arch }}
          # Windows ccache needs ~1GB
@@ -1,4 +1,4 @@
-name: ci-lint
+name: ci-black-formatting

 on:
  push:
@@ -30,7 +30,6 @@ jobs:
          uv tool install ruff
          uv tool install black
          uv tool install poethepoet
-          uv tool install ty==0.0.34

      # black doesn't catch all syntax errors, so we check them explicitly.
      - name: Check syntax errors
@@ -58,13 +57,6 @@ jobs:
          black --diff --check . | black-codeclimate | python .github/workflows/black_to_github_annotations.py
        continue-on-error: true

-      - name: ty check
-        id: ty
-        run: |
-          poe ty-venv
-          poe ty
-        continue-on-error: true
-
      - name: Ruff check
        id: ruff
        run: |
@@ -95,7 +87,8 @@ jobs:
            echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
          }

-          run_check poe ruff
+          run_check poe ruff-main
+          run_check poe ruff-old

          exit $ERROR
        continue-on-error: true
@@ -112,7 +105,4 @@ jobs:
          if [ "${{ steps.ruff.outcome }}" != "success" ]; then
            echo "::error::Ruff check failed, see Summary or 'ruff' step for the details." && ERROR=1
          fi
-          if [ "${{ steps.ty.outcome }}" != "success" ]; then
-            echo "::error::ty check failed, see 'ty check' step for the details." && ERROR=1
-          fi
          exit $ERROR
@@ -109,7 +109,7 @@ jobs:
          # Ensure Bonsai and ifcsverchok enable/disable works before uploading to extensions repo.

          # Download Blender.
-          wget -q -O blender.tar.xz https://download.blender.org/release/Blender5.1/blender-5.1.0-linux-x64.tar.xz
+          wget -q -O blender.tar.xz https://download.blender.org/release/Blender5.0/blender-5.0.1-linux-x64.tar.xz
          tar -xf blender.tar.xz

          # Setup Blender.
@@ -122,7 +122,7 @@ jobs:
          pip install -r requirements.txt
          python setup_extensions_repo.py --last-tag
          cd ..
-          bonsai_zip="$(pwd)/$(ls bonsai_unstable_repo/bonsai_py313*-linux-x64.zip)"
+          bonsai_zip="$(pwd)/$(ls bonsai_unstable_repo/bonsai_py311*-linux-x64.zip)"

          # Install Bonsai.
          blender --command extension install-file -r user_default -e $bonsai_zip
@@ -24,7 +24,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        pyver: [py311, py312, py313]
+        pyver: [py311, py312]
        config:
          - {
            name: "Windows Build",
@@ -42,11 +42,6 @@ jobs:
            name: "MacOS ARM Build",
            short_name: macosm1,
          }
-        exclude:
-          # Python 3.13 is needed for Blender 5.1+ and Blender dropped Intel Mac support in 5.0.
-          - pyver: py313
-            config:
-              short_name: macos
    steps:
      - uses: actions/checkout@v6
      - uses: actions/setup-python@v6 # https://github.com/actions/setup-python
@@ -1,35 +0,0 @@
-name: ci-ifcedit-pypi
-
-on:
-  workflow_dispatch:
-
-jobs:
-  activate:
-    runs-on: ubuntu-latest
-    if: |
-      github.repository == 'IfcOpenShell/IfcOpenShell'
-    steps:
-    - name: Set env
-      run: echo ok go
-
-  build:
-    needs: activate
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-    steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
-        with:
-          python-version: '3.11'
-      - name: Compile
-        run: |
-          pip install build
-          cd src/ifcedit &&
-          make dist IS_STABLE=TRUE
-      - name: Publish a Python distribution to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
-        with:
-          user: __token__
-          password: ${{ secrets.PYPI_API_TOKEN }}
-          packages_dir: src/ifcedit/dist
@@ -1,36 +0,0 @@
-name: ci-ifcmcp-pypi
-
-on:
-  workflow_dispatch:
-
-jobs:
-  activate:
-    runs-on: ubuntu-latest
-    if: |
-      github.repository == 'IfcOpenShell/IfcOpenShell'
-    steps:
-    - name: Set env
-      run: echo ok go
-
-  build:
-    needs: activate
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-    steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
-        with:
-          python-version: '3.11'
-      - name: Compile
-        run: |
-          pip install build
-          cd src/ifcmcp &&
-          make dist IS_STABLE=TRUE
-      - name: Publish a Python distribution to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
-        with:
-          user: __token__
-          password: ${{ secrets.PYPI_API_TOKEN }}
-          packages_dir: src/ifcmcp/dist
-          verbose: true
@@ -35,7 +35,7 @@ jobs:

    -
      name: ccache
-      uses: hendrikmuhs/ccache-action@v1.2.23
+      uses: hendrikmuhs/ccache-action@v1.2.22

    - 
      name: Build ifcopenshell
@@ -1,35 +0,0 @@
-name: ci-ifcquery-pypi
-
-on:
-  workflow_dispatch:
-
-jobs:
-  activate:
-    runs-on: ubuntu-latest
-    if: |
-      github.repository == 'IfcOpenShell/IfcOpenShell'
-    steps:
-    - name: Set env
-      run: echo ok go
-
-  build:
-    needs: activate
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-    steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
-        with:
-          python-version: '3.11'
-      - name: Compile
-        run: |
-          pip install build
-          cd src/ifcquery &&
-          make dist IS_STABLE=TRUE
-      - name: Publish a Python distribution to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
-        with:
-          user: __token__
-          password: ${{ secrets.PYPI_API_TOKEN }}
-          packages_dir: src/ifcquery/dist
@@ -1,155 +0,0 @@
-# This file was generated with the assistance of an AI coding tool.
-name: ci-ifcwrap-standalone
-
-on:
-  workflow_dispatch:
-  pull_request:
-    paths:
-      - ".github/workflows/ci-ifcwrap-standalone.yml"
-      - "cmake/**"
-      - "src/ifcwrap/**"
-      - "src/ifcparse/**"
-      - "src/ifcgeom/**"
-      - "src/serializers/**"
-      - "src/ifcconvert/**"
-      - "src/ifcopenshell-python/**"
-      - "src/svgfill/**"
-  push:
-    paths:
-      - ".github/workflows/ci-ifcwrap-standalone.yml"
-      - "cmake/**"
-      - "src/ifcwrap/**"
-      - "src/ifcparse/**"
-      - "src/ifcgeom/**"
-      - "src/serializers/**"
-      - "src/ifcconvert/**"
-      - "src/ifcopenshell-python/**"
-      - "src/svgfill/**"
-
-env:
-  IFCOPENSHELL_PREFIX: ${{ github.workspace }}/ifcopenshell-install
-
-jobs:
-  build-ifcopenshell:
-    runs-on: ubuntu-22.04
-
-    steps:
-      - uses: actions/checkout@v6
-        with:
-          submodules: recursive
-
-      - name: Install C++ dependencies
-        run: |
-          sudo apt update
-          sudo apt-get install --no-install-recommends -y \
-            cmake \
-            gcc \
-            g++ \
-            libboost-date-time-dev \
-            libboost-filesystem-dev \
-            libboost-iostreams-dev \
-            libboost-program-options-dev \
-            libboost-regex-dev \
-            libboost-system-dev \
-            libboost-thread-dev \
-            libeigen3-dev \
-            libocct-data-exchange-dev \
-            libocct-draw-dev \
-            libocct-foundation-dev \
-            libocct-modeling-algorithms-dev \
-            libocct-modeling-data-dev \
-            libocct-ocaf-dev \
-            libocct-visualization-dev \
-            libpcre3-dev \
-            libtbb-dev \
-            libxml2-dev \
-            libxi-dev \
-            occt-misc \
-            tcl-dev \
-            tk-dev \
-            swig
-
-      - name: Configure minimal IfcOpenShell
-        run: |
-          cmake -S cmake -B build-ifcopenshell \
-            -DCMAKE_BUILD_TYPE=Release \
-            -DCMAKE_INSTALL_PREFIX="${IFCOPENSHELL_PREFIX}" \
-            -DCMAKE_PREFIX_PATH=/usr \
-            -DCMAKE_SYSTEM_PREFIX_PATH=/usr \
-            -DMINIMAL_BUILD=ON \
-            -DBUILD_IFCPYTHON=OFF \
-            "-DSCHEMA_VERSIONS=4x3_add2"
-
-      - name: Build and install minimal IfcOpenShell
-        run: |
-          cmake --build build-ifcopenshell --target install -j "$(nproc)"
-
-      - name: Set up Python 3.11
-        uses: actions/setup-python@v6
-        with:
-          python-version: 3.11
-
-      - name: Install Python import dependencies
-        run: |
-          python -m pip install --upgrade pip
-          python -m pip install numpy typing_extensions
-
-      - name: Configure standalone IfcPython
-        run: |
-          PYTHON_EXECUTABLE="$(python -c 'import sys; print(sys.executable)')"
-          PYTHON_INCLUDE_DIR="$(python -c 'import sysconfig; print(sysconfig.get_path("include"))')"
-
-          cmake -S src/ifcwrap -B "build-ifcwrap-311" \
-            -DCMAKE_BUILD_TYPE=Release \
-            -DCMAKE_PREFIX_PATH="${IFCOPENSHELL_PREFIX};/usr" \
-            -DPython_EXECUTABLE:FILEPATH="${PYTHON_EXECUTABLE}" \
-            -DPython_INCLUDE_DIR:PATH="${PYTHON_INCLUDE_DIR}" \
-            -DPYTHON_EXECUTABLE:FILEPATH="${PYTHON_EXECUTABLE}" \
-            -DPYTHON_INCLUDE_DIR:PATH="${PYTHON_INCLUDE_DIR}"
-
-      - name: Build and install standalone IfcPython
-        run: |
-          cmake --build "build-ifcwrap-311" --target install -j "$(nproc)"
-
-      - name: Import installed IfcPython
-        run: |
-          PYTHONPATH="${RUNNER_TEMP}/ifcopenshell-python" python - <<'PY'
-          import ifcopenshell
-
-          print("IfcOpenShell import ok:", ifcopenshell.version)
-          PY
-
-      - name: Set up Python 3.12
-        uses: actions/setup-python@v6
-        with:
-          python-version: 3.12
-
-      - name: Install Python import dependencies
-        run: |
-          python -m pip install --upgrade pip
-          python -m pip install numpy typing_extensions
-
-      - name: Configure standalone IfcPython
-        run: |
-          PYTHON_EXECUTABLE="$(python -c 'import sys; print(sys.executable)')"
-          PYTHON_INCLUDE_DIR="$(python -c 'import sysconfig; print(sysconfig.get_path("include"))')"
-
-          cmake -S src/ifcwrap -B "build-ifcwrap-312" \
-            -DCMAKE_BUILD_TYPE=Release \
-            -DCMAKE_PREFIX_PATH="${IFCOPENSHELL_PREFIX};/usr" \
-            -DPython_EXECUTABLE:FILEPATH="${PYTHON_EXECUTABLE}" \
-            -DPython_INCLUDE_DIR:PATH="${PYTHON_INCLUDE_DIR}" \
-            -DPYTHON_EXECUTABLE:FILEPATH="${PYTHON_EXECUTABLE}" \
-            -DPYTHON_INCLUDE_DIR:PATH="${PYTHON_INCLUDE_DIR}"
-
-      - name: Build and install standalone IfcPython
-        run: |
-          cmake --build "build-ifcwrap-312" --target install -j "$(nproc)"
-
-      - name: Import installed IfcPython
-        run: |
-          PYTHONPATH="${RUNNER_TEMP}/ifcopenshell-python" python - <<'PY'
-          import ifcopenshell
-
-          print("IfcOpenShell import ok:", ifcopenshell.version)
-          PY
@@ -1,46 +0,0 @@
-name: Release Pyodide WASM Wheel
-
-on:
-  workflow_dispatch:
-
-jobs:
-  build-and-push:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout IfcOpenShell
-        uses: actions/checkout@v6
-
-      - name: Install uv
-        uses: astral-sh/setup-uv@v7
-
-      - name: Build wheel
-        working-directory: pyodide
-        run: uv run pack_wheel.py --build
-
-      - name: Find wheel
-        id: wheel
-        run: |
-          WHEEL=$(ls pyodide/dist/ifcopenshell-*.whl)
-          echo "path=$WHEEL" >> $GITHUB_OUTPUT
-          echo "name=$(basename $WHEEL)" >> $GITHUB_OUTPUT
-
-      - name: Checkout wasm-wheels
-        uses: actions/checkout@v6
-        with:
-          repository: IfcOpenShell/wasm-wheels
-          path: wasm-wheels
-          token: ${{ secrets.BUILD_REPO_TOKEN }}
-
-      - name: Commit and push wheel to wasm-wheels
-        run: |
-          WHEEL_NAME="${{ steps.wheel.outputs.name }}"
-          cp "${{ steps.wheel.outputs.path }}" "wasm-wheels/$WHEEL_NAME"
-          cd wasm-wheels
-          git config user.name "IfcOpenBot"
-          git config user.email "ifcopenbot@ifcopenshell.org"
-          git add "$WHEEL_NAME"
-          git commit -m "Add $WHEEL_NAME"
-          VERSION=$(cat ../VERSION)
-          git tag "v${VERSION}"
-          git push origin main
-          git push origin "v${VERSION}"
@@ -10,13 +10,9 @@ on:
      - 'src/ifcgeomserver/**'
      - 'src/ifcjni/**'
      - 'src/ifcmax/**'
-      - 'src/ifc5d/**'
-      - 'src/ifcedit/**'
-      - 'src/ifcmcp/**'
      - 'src/ifcopenshell-python/**'
      - '!src/ifcopenshell-python/docs/**'
      - 'src/ifcparse/**'
-      - 'src/ifcquery/**'
      - 'src/ifcwrap/**'
      - 'src/qtviewer/**'
      - 'src/svgfill/**'
@@ -55,7 +51,7 @@ jobs:
      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
-          pip install xmlschema xsdata numpy lxml pytest isodate lark networkx tabulate python-dateutil shapely pyparsing psutil
+          pip install xmlschema xsdata numpy lxml pytest isodate lark networkx tabulate python-dateutil shapely
          pip install src/bcf --no-deps
          pip install pytest-xdist==3.8.0

@@ -83,7 +79,7 @@ jobs:
          libhdf5-dev libcgal-dev libeigen3-dev
          
      - name: ccache
-        uses: hendrikmuhs/ccache-action@v1.2.23
+        uses: hendrikmuhs/ccache-action@v1.2.22
        with:
          key: ubuntu-22.04-${{ runner.arch }}

@@ -256,26 +252,13 @@ jobs:
          pip install deepdiff
          cd ../ifcdiff && make test || ERROR=1
          cd ../ifcpatch && make test || ERROR=1
-          pip install -e ../ifc5d --no-deps
-          pip install odfpy xlsxwriter
-          cd ../ifc5d && make test || ERROR=1
-          pip install -e ../ifcquery --no-deps
-          cd ../ifcquery && make test || ERROR=1
-          pip install -e ../ifcedit --no-deps
-          cd ../ifcedit && make test || ERROR=1
-          pip install mcp
-          pip install -e ../ifcmcp --no-deps
-          cd ../ifcmcp && make test || ERROR=1
          pip install -e ../ifctester --no-deps
          cd ../ifctester && make test || ERROR=1
          make build-ids-docs || ERROR=1
          # Run mathutils related tests at the end to ensure no other code is relying on mathutils.
-          # mathutils only has pre-built wheels for Python 3.13+; skip on older versions.
          cd ../ifcopenshell-python
-          if python -c "import sys; sys.exit(0 if sys.version_info >= (3, 13) else 1)"; then
-            pip install mathutils
-            make test-mathutils || ERROR=1
-          fi
+          pip install mathutils
+          make test-mathutils || ERROR=1
          if [ $ERROR -ne 0 ]; then
            echo "One or more tests failed";
            exit 1;
@@ -0,0 +1,36 @@
+name: Build and Deploy Stable Documentation
+
+on:
+  workflow_dispatch:  # Manual trigger
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.x'
+
+      - name: Install dependencies
+        run: |
+          cd src/bonsai/docs
+          pip install -r requirements.txt  # Run pip install from the docs directory
+
+      - name: Build documentation
+        run: |
+          cd src/bonsai/docs
+          make html
+
+      - name: Deploy to GitHub Pages (Stable)
+        uses: peaceiris/actions-gh-pages@v4
+        with:
+          deploy_key: ${{ secrets.ACTIONS_DEPLOY_KEY }}
+          external_repository: IfcOpenShell/bonsaibim_org_docs
+          publish_branch: main
+          cname: docs.bonsaibim.org
+          publish_dir: src/bonsai/docs/_build/html
@@ -1,65 +0,0 @@
-name: Deploy AI chat App to static page repo
-
-permissions:
-  id-token: write
-  pages: write
-
-on:
-  push:
-    paths:
-      - 'src/ifcchat/**'
-      - '.github/workflows/publish-aichat-app.yaml'
-    branches:
-      - v0.8.0
-  workflow_dispatch:
-
-jobs:
-  activate:
-    runs-on: ubuntu-latest
-    if: |
-      github.repository == 'IfcOpenShell/IfcOpenShell'
-    steps:
-    - name: Set env
-      run: echo ok go
-      
-  build:
-    needs: activate
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout (recursive)
-        uses: actions/checkout@v6
-        with:
-          submodules: recursive
-          fetch-depth: 0
-      - name: Checkout intermediate Pages repo
-        uses: actions/checkout@v6
-        with:
-          repository: IfcOpenShell/aichat_ifcopenshell_org_static_html
-          ref: gh-pages
-          path: output
-          token: ${{ secrets.WEBSITE_PUBLISH }}
-      - name: Sync demo app into target subfolder
-        run: |
-          rsync -av --delete --exclude='.git/' src/ifcchat/ output/
-      - name: Setup Python
-        uses: actions/setup-python@v6
-        with:
-          python-version: "3.x"
-      - name: Download wheels
-        working-directory: output/
-        run: |
-          pip download ifcquery==0.8.5 ifcopenshell-mcp==0.8.5 ifcedit==0.8.5 lark==1.3.1 isodate==0.7.2 --no-deps -d ./dist
-      - name: Commit and push if changed
-        working-directory: output
-        run: |
-          git config --global user.name 'IfcOpenBot'
-          git config --global user.email 'IfcOpenBot@users.noreply.github.com'
-
-          git add .
-          if git diff --cached --quiet; then
-            echo "No changes to commit"
-            exit 0
-          fi
-
-          git commit  -m "$(git log --oneline -1)"
-          git push origin gh-pages
@@ -1,16 +0,0 @@
-name: Publish Bonsai Releases
-
-on:
-  workflow_dispatch:
-
-jobs:
-  publish:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v6
-
-      - uses: astral-sh/setup-uv@v7
-
-      - run: uv run .github/scripts/publish-bonsai-releases.py
-        env:
-          BLENDER_EXTENSIONS_TOKEN: ${{ secrets.BLENDER_EXTENSIONS_TOKEN }}
@@ -1,4 +1,4 @@
-name: Deploy Pyodide Demo App to static page repo
+name: Deploy Pyodide Demo App to GitHub Pages

 permissions:
  id-token: write
@@ -11,7 +11,6 @@ on:
      - '.github/workflows/publish-pyodide-demo-app.yml'
    branches:
      - v0.8.0
-  workflow_dispatch:

 jobs:
  activate:
@@ -31,27 +30,21 @@ jobs:
        with:
          submodules: recursive
          fetch-depth: 0
-      - name: Checkout intermediate Pages repo
-        uses: actions/checkout@v6
+      - name: Setup Pages
+        uses: actions/configure-pages@v6
+      - name: Upload static files as artifact
+        id: deployment
+        uses: actions/upload-pages-artifact@v4
        with:
-          repository: IfcOpenShell/wasm_ifcopenshell_org_static_html
-          ref: gh-pages
-          path: output
-          token: ${{ secrets.WEBSITE_PUBLISH }}
-      - name: Sync demo app into target subfolder
-        run: |
-          rsync -av --delete --exclude='.git/' src/pyodide/demo-app/ output/
-      - name: Commit and push if changed
-        working-directory: output
-        run: |
-          git config --global user.name 'IfcOpenBot'
-          git config --global user.email 'IfcOpenBot@users.noreply.github.com'
+          path: src/pyodide/demo-app/

-          git add .
-          if git diff --cached --quiet; then
-            echo "No changes to commit"
-            exit 0
-          fi
-
-          git commit -m "$(git log --oneline -1)"
-          git push origin gh-pages
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v5
@@ -28,7 +28,6 @@ venv
 !.vscode/launch.json
 !.vscode/tasks.json
 .vs
-/*.code-workspace

 # PyCharm files
 .idea
@@ -127,7 +126,5 @@ src/ifcopenshell-python/ifcopenshell/express/*.exp.cache.dat

 # temp files from AI coding tools
 *.claude
-CLAUDE.local.md
 *.py.tmp*
 *.json.tmp*
-
@@ -50,14 +50,11 @@ Contents
 | [ifcconvert](https://docs.ifcopenshell.org/ifcconvert.html)                | CLI app to convert IFC to many other formats                          | LGPL-3.0-or-later\* | [![Official](https://img.shields.io/badge/IfcOpenShell.org-Download-70ba35)](https://docs.ifcopenshell.org/ifcconvert/installation.html) [![GitHub](https://img.shields.io/github/v/release/ifcopenshell/ifcopenshell?filter=ifcconvert-*&label=GitHub&color=f6f8fa)](https://github.com/IfcOpenShell/IfcOpenShell/releases?q=ifcconvert&expanded=true)
 | [ifccsv](https://docs.ifcopenshell.org/ifccsv.html)                    | Library and CLI app to export and import schedules from IFC           | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifccsv?label=PyPI&color=006dad)](https://pypi.org/project/ifccsv/) |
 | [ifcdiff](https://docs.ifcopenshell.org/ifcdiff.html)                   | Compare changes between IFC models                                    | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifcdiff?label=PyPI&color=006dad)](https://pypi.org/project/ifcdiff/) |
-| [ifcedit](https://docs.ifcopenshell.org/ifcedit.html)                   | CLI wrapper for ifcopenshell.api IFC model mutation functions         | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifcedit?label=PyPI&color=006dad)](https://pypi.org/project/ifcedit/) |
 | [ifcfm](https://docs.ifcopenshell.org/ifcfm.html)                     | Extract IFC data for FM handover requirements                         | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifcfm?label=PyPI&color=006dad)](https://pypi.org/project/ifcfm/) |
 | [ifcmax](https://docs.ifcopenshell.org/ifcmax.html)                    | Historic extension for IFC support in 3DS Max                         | LGPL-3.0-or-later\* | [![Official](https://img.shields.io/badge/IfcOpenShell.org-Download-70ba35)](https://docs.ifcopenshell.org/ifcmax.html)
-| [ifcmcp](https://docs.ifcopenshell.org/ifcmcp.html)                    | MCP server for querying and editing IFC building models               | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifcopenshell-mcp?label=PyPI&color=006dad)](https://pypi.org/project/ifcopenshell-mcp/) |
-| [ifcopenshell-python](https://docs.ifcopenshell.org/ifcopenshell-python.html)       | Python library for IFC manipulation                                   | LGPL-3.0-or-later\* | [![Official](https://img.shields.io/badge/IfcOpenShell.org-Download-70ba35)](https://docs.ifcopenshell.org/ifcopenshell-python/installation.html) [![GitHub](https://img.shields.io/github/v/release/ifcopenshell/ifcopenshell?filter=ifcopenshell-python-*&label=GitHub&color=f6f8fa)](https://github.com/IfcOpenShell/IfcOpenShell/releases?q=ifcopenshell-python&expanded=true) [![PyPI](https://img.shields.io/pypi/v/ifcopenshell?label=PyPI&color=006dad)](https://pypi.org/project/ifcopenshell/) [![Anaconda](https://img.shields.io/conda/vn/conda-forge/ifcopenshell?label=Anaconda&color=43b02a)](https://anaconda.org/conda-forge/ifcopenshell) [![Anaconda](https://img.shields.io/conda/vn/ifcopenshell/ifcopenshell?label=Anaconda-Unstable&color=43b02a)](https://anaconda.org/ifcopenshell/ifcopenshell) [![Docker](https://img.shields.io/docker/pulls/aecgeeks/ifcopenshell?label=Docker&color=1D63ED)](https://hub.docker.com/r/aecgeeks/ifcopenshell) [![AUR](https://img.shields.io/aur/version/ifcopenshell?label=AUR&color=1793d1)](https://aur.archlinux.org/packages/ifcopenshell) [![AUR Unstable](https://img.shields.io/aur/version/ifcopenshell-git?label=AUR-Unstable&color=1793d1)](https://aur.archlinux.org/packages/ifcopenshell-git) [![Pyodide WASM Wheels tag](https://img.shields.io/github/v/tag/ifcopenshell/wasm-wheels?sort=semver&label=pyodide-wasm-wheels)](https://github.com/IfcOpenShell/wasm-wheels) |
+| [ifcopenshell-python](https://docs.ifcopenshell.org/ifcopenshell-python.html)       | Python library for IFC manipulation                                   | LGPL-3.0-or-later\* | [![Official](https://img.shields.io/badge/IfcOpenShell.org-Download-70ba35)](https://docs.ifcopenshell.org/ifcopenshell-python/installation.html) [![GitHub](https://img.shields.io/github/v/release/ifcopenshell/ifcopenshell?filter=ifcopenshell-python-*&label=GitHub&color=f6f8fa)](https://github.com/IfcOpenShell/IfcOpenShell/releases?q=ifcopenshell-python&expanded=true) [![PyPI](https://img.shields.io/pypi/v/ifcopenshell?label=PyPI&color=006dad)](https://pypi.org/project/ifcopenshell/) [![Anaconda](https://img.shields.io/conda/vn/conda-forge/ifcopenshell?label=Anaconda&color=43b02a)](https://anaconda.org/conda-forge/ifcopenshell) [![Anaconda](https://img.shields.io/conda/vn/ifcopenshell/ifcopenshell?label=Anaconda-Unstable&color=43b02a)](https://anaconda.org/ifcopenshell/ifcopenshell) [![Docker](https://img.shields.io/docker/pulls/aecgeeks/ifcopenshell?label=Docker&color=1D63ED)](https://hub.docker.com/r/aecgeeks/ifcopenshell) [![AUR](https://img.shields.io/aur/version/ifcopenshell?label=AUR&color=1793d1)](https://aur.archlinux.org/packages/ifcopenshell) [![AUR Unstable](https://img.shields.io/aur/version/ifcopenshell-git?label=AUR-Unstable&color=1793d1)](https://aur.archlinux.org/packages/ifcopenshell-git) [Pyodide WASM Wheels](https://github.com/IfcOpenShell/wasm-wheels#pyodide-test-wheels) |
 | [ifcpatch](https://docs.ifcopenshell.org/ifcpatch.html)                  | Utility to run pre-packaged scripts to manipulate IFCs                | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifcpatch?label=PyPI&color=006dad)](https://pypi.org/project/ifcpatch/) |
-| [ifcquery](https://docs.ifcopenshell.org/ifcquery.html)                  | CLI tool for querying and inspecting IFC building models              | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifcquery?label=PyPI&color=006dad)](https://pypi.org/project/ifcquery/) |
-| [ifcsverchok](https://docs.ifcopenshell.org/ifcsverchok.html)               | Blender Add-on for visual node programming with IFC                   | GPL-3.0-or-later    | [![GitHub](https://img.shields.io/github/v/release/ifcopenshell/ifcopenshell?filter=ifcsverchok-*.*.*&label=GitHub&color=f6f8fa)](https://github.com/IfcOpenShell/IfcOpenShell/releases?q=ifcsverchok&expanded=true)
+| [ifcsverchok](https://docs.ifcopenshell.org/ifcsverchok.html)               | Blender Add-on for visual node programming with IFC                   | GPL-3.0-or-later    | [![GitHub Unstable](https://img.shields.io/github/v/release/ifcopenshell/ifcopenshell?filter=ifcsverchok-*.*.*.*&label=GitHub-Unstable&color=f6f8fa)](https://github.com/IfcOpenShell/IfcOpenShell/releases?q=ifcsverchok&expanded=true)
 | [ifctester](https://docs.ifcopenshell.org/ifctester.html)                 | Library, CLI and webapp for IDS model auditing                        | LGPL-3.0-or-later   | [![PyPI](https://img.shields.io/pypi/v/ifctester?label=PyPI&color=006dad)](https://pypi.org/project/ifctester/) |

 The IfcOpenShell C++ codebase is split into multiple interal libraries:
@@ -1 +1 @@
-0.8.6
+0.8.5
@@ -27,14 +27,13 @@ endif()
 set(CMAKE_CXX_STANDARD_REQUIRED ON) # not necessary, but encouraged
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

-# The VERSION file in the repository root is the single source of truth for the
-# release version. Read it unconditionally so a plain source build reports the
-# real version through buildinfo.cpp instead of the stale hardcoded 0.8.0
-# fallback (see #8164). VERSION_OVERRIDE still controls the branch name used
-# when ADD_COMMIT_SHA embeds a commit sha.
-file(READ "../VERSION" "RELEASE_VERSION_")
-string(STRIP "${RELEASE_VERSION_}" RELEASE_VERSION)
-message(STATUS "Detected version '${RELEASE_VERSION}'")
+if(VERSION_OVERRIDE)
+    file(READ "../VERSION" "RELEASE_VERSION_")
+    string(STRIP "${RELEASE_VERSION_}" RELEASE_VERSION)
+    message(STATUS "Detected version '${RELEASE_VERSION}'")
+else()
+    set(RELEASE_VERSION "0.8.0")
+endif()

 add_definitions(-D_DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR)

@@ -259,14 +258,10 @@ if(WITH_ROCKSDB)
    set(ROCKSDB_LIBRARIES "IFCOPENSHELL_RocksDB")
    target_compile_definitions(IFCOPENSHELL_RocksDB INTERFACE IFOPSH_WITH_ROCKSDB)
    set(SWIG_DEFINES ${SWIG_DEFINES} -DIFOPSH_WITH_ROCKSDB)
+    # Shared binaries for `rocksdb` only support limited API (only `c.h`), but we use `db.h` API.
+    # So rocksdb supported only as a static library.
    # See https://github.com/facebook/rocksdb/issues/981.
-    if(TARGET RocksDB::rocksdb)
-        target_link_libraries(IFCOPENSHELL_RocksDB INTERFACE RocksDB::rocksdb)
-    elseif(TARGET RocksDB::rocksdb-shared)
-        target_link_libraries(IFCOPENSHELL_RocksDB INTERFACE RocksDB::rocksdb-shared)
-    else()
-        message(FATAL_ERROR "RocksDB found but neither RocksDB::rocksdb nor RocksDB::rocksdb-shared target exists")
-    endif()
+    target_link_libraries(IFCOPENSHELL_RocksDB INTERFACE RocksDB::rocksdb)

    if(WITH_ZSTD)
        # @todo do we actually need the zstd include dir or rather just pass
@@ -314,12 +309,8 @@ if(WASM_BUILD)
 else()
    # @todo review this, shouldn't this be all possible header-only now?
    # ... or rewritten using C++17 features?
-    # Boost.System has been header-only since 1.69 and its compiled stub library
-    # was dropped in newer Boost, so requesting it as a component makes
-    # find_package fail on Boost 1.70 and up (for example Boost 1.90). It is
-    # still pulled in transitively by thread / iostreams where needed, so do not
-    # request it explicitly.
    set(BOOST_COMPONENTS
+        system
        program_options
        regex
        thread
@@ -665,11 +656,6 @@ if(ADD_COMMIT_SHA)
    endif()
 endif(ADD_COMMIT_SHA)

-# Always expose the release version (from the VERSION file) to buildinfo.cpp so
-# that a build without commit-sha info reports the correct version instead of a
-# stale hardcoded fallback. See #8164.
-target_compile_definitions(IfcParse PRIVATE IFCOPENSHELL_VERSION_STRING=${RELEASE_VERSION})
-
 if(MSVC)
    # @todo still needs to be understood better, but the cgal and cgal-simple kernel cause multiply defined boost lambda placeholders _1 ... _3
    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /FORCE:MULTIPLE")
@@ -88,15 +88,7 @@ if(NOT HDF5_INCLUDE_DIR OR NOT HDF5_LIBRARY_DIR)
    mark_as_advanced(HDF5_DIR)
    if(HDF5_DIR)
        message(STATUS "HDF5: found config at '${HDF5_DIR}'.")
-        if(TARGET hdf5_cpp-static)
-            set(HDF5_LIBRARIES hdf5_cpp-static)
-        elseif(TARGET hdf5_cpp-shared)
-            set(HDF5_LIBRARIES hdf5_cpp-shared)
-        elseif(TARGET hdf5::hdf5_cpp-shared)
-            set(HDF5_LIBRARIES hdf5::hdf5_cpp-shared)
-        else()
-            find_package(HDF5 REQUIRED COMPONENTS CXX)
-        endif()
+        set(HDF5_LIBRARIES hdf5_cpp-static)
    else()
        # If it failed, still try to find as a module.
        # E.g. on Ubuntu `libhdf5-dev` doesn't provie hdf5-config.cmake.
@@ -1,131 +0,0 @@
-# This file was generated with the assistance of an AI coding tool.
-################################################################################
-#                                                                              #
-# 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/>.         #
-#                                                                              #
-################################################################################
-
-include("${CMAKE_CURRENT_LIST_DIR}/utilities.cmake" OPTIONAL)
-
-set(_IfcOpenShell_find_args)
-if(IfcOpenShell_FIND_VERSION)
-    list(APPEND _IfcOpenShell_find_args "${IfcOpenShell_FIND_VERSION}")
-    if(IfcOpenShell_FIND_VERSION_EXACT)
-        list(APPEND _IfcOpenShell_find_args EXACT)
-    endif()
-endif()
-list(APPEND _IfcOpenShell_find_args CONFIG QUIET)
-if(IfcOpenShell_FIND_COMPONENTS)
-    list(APPEND _IfcOpenShell_find_args COMPONENTS ${IfcOpenShell_FIND_COMPONENTS})
-endif()
-
-set(_IfcOpenShell_saved_module_path "${CMAKE_MODULE_PATH}")
-list(REMOVE_ITEM CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}")
-find_package(IfcOpenShell ${_IfcOpenShell_find_args})
-set(CMAKE_MODULE_PATH "${_IfcOpenShell_saved_module_path}")
-
-if(NOT IfcOpenShell_FOUND)
-    set(_IfcOpenShell_error "Could not find an IfcOpenShell CMake config package. Set IfcOpenShell_DIR or CMAKE_PREFIX_PATH.")
-    if(IfcOpenShell_FIND_REQUIRED)
-        message(FATAL_ERROR "${_IfcOpenShell_error}")
-    elseif(NOT IfcOpenShell_FIND_QUIETLY)
-        message(STATUS "${_IfcOpenShell_error}")
-    endif()
-    return()
-endif()
-
-set(_IfcOpenShell_required_targets IfcOpenShell::IfcParse IfcOpenShell::IfcGeom)
-set(_IfcOpenShell_missing_targets "")
-foreach(_IfcOpenShell_target IN LISTS _IfcOpenShell_required_targets)
-    if(NOT TARGET ${_IfcOpenShell_target})
-        list(APPEND _IfcOpenShell_missing_targets ${_IfcOpenShell_target})
-    endif()
-endforeach()
-
-if(_IfcOpenShell_missing_targets)
-    set(IfcOpenShell_FOUND FALSE)
-    string(REPLACE ";" ", " _IfcOpenShell_missing_targets_text "${_IfcOpenShell_missing_targets}")
-    set(_IfcOpenShell_error "IfcOpenShell config was found, but required targets are missing: ${_IfcOpenShell_missing_targets_text}.")
-    if(IfcOpenShell_FIND_REQUIRED)
-        message(FATAL_ERROR "${_IfcOpenShell_error}")
-    elseif(NOT IfcOpenShell_FIND_QUIETLY)
-        message(STATUS "${_IfcOpenShell_error}")
-    endif()
-    return()
-endif()
-
-if(NOT DEFINED IFCOPENSHELL_WITH_OPENCASCADE)
-    set(IFCOPENSHELL_WITH_OPENCASCADE OFF)
-    if(TARGET IfcOpenShell::geometry_kernel_opencascade)
-        set(IFCOPENSHELL_WITH_OPENCASCADE ON)
-    endif()
-endif()
-
-if(NOT DEFINED IFCOPENSHELL_WITH_CGAL)
-    set(IFCOPENSHELL_WITH_CGAL OFF)
-    if(TARGET IfcOpenShell::IFCOPENSHELL_CGAL)
-        set(IFCOPENSHELL_WITH_CGAL ON)
-    endif()
-endif()
-
-if(NOT DEFINED IFCOPENSHELL_IFCXML)
-    set(IFCOPENSHELL_IFCXML OFF)
-endif()
-
-if(NOT DEFINED IFCOPENSHELL_WITH_ROCKSDB)
-    set(IFCOPENSHELL_WITH_ROCKSDB OFF)
-endif()
-
-set(IFCOPENSHELL_LIBRARIES IfcOpenShell::IfcParse)
-foreach(_IfcOpenShell_target IN ITEMS IfcOpenShell::geometry_serializer IfcOpenShell::Serializers)
-    if(TARGET ${_IfcOpenShell_target})
-        list(APPEND IFCOPENSHELL_LIBRARIES ${_IfcOpenShell_target})
-    endif()
-endforeach()
-
-set(IFCOPENSHELL_KERNEL_LIBRARIES "")
-foreach(_IfcOpenShell_target IN ITEMS
-    IfcOpenShell::geometry_kernel_opencascade
-    IfcOpenShell::geometry_kernel_cgal
-    IfcOpenShell::geometry_kernel_cgal_simple
-)
-    if(TARGET ${_IfcOpenShell_target})
-        list(APPEND IFCOPENSHELL_KERNEL_LIBRARIES ${_IfcOpenShell_target})
-    endif()
-endforeach()
-
-set(IFCOPENSHELL_GEOMETRY_LIBRARIES IfcOpenShell::IfcGeom ${IFCOPENSHELL_KERNEL_LIBRARIES})
-
-if(TARGET IfcOpenShell::OpenCASCADE_INTERFACE)
-    set(OpenCASCADE_LIBRARIES IfcOpenShell::OpenCASCADE_INTERFACE)
-endif()
-
-if(TARGET IfcOpenShell::IFCOPENSHELL_CGAL)
-    set(CGAL_LIBRARIES IfcOpenShell::IFCOPENSHELL_CGAL)
-endif()
-
-if(TARGET IfcOpenShell::svgfill)
-    set(IFCOPENSHELL_SVGFILL_LIBRARY IfcOpenShell::svgfill)
-endif()
-
-mark_as_advanced(IfcOpenShell_DIR)
-
-unset(_IfcOpenShell_error)
-unset(_IfcOpenShell_find_args)
-unset(_IfcOpenShell_missing_targets)
-unset(_IfcOpenShell_missing_targets_text)
-unset(_IfcOpenShell_required_targets)
-unset(_IfcOpenShell_target)
@@ -7,26 +7,12 @@ set(IFCOPENSHELL_WITH_OPENCASCADE @WITH_OPENCASCADE@)
 set(IFCOPENSHELL_WITH_CGAL @WITH_CGAL@)
 set(IFCOPENSHELL_IFCXML @IFCXML_SUPPORT@)
 set(IFCOPENSHELL_WITH_ROCKSDB @WITH_ROCKSDB@)
-set(IFCOPENSHELL_COLLADA_SUPPORT @COLLADA_SUPPORT@)
-set(IFCOPENSHELL_GLTF_SUPPORT @GLTF_SUPPORT@)
-set(IFCOPENSHELL_HDF5_SUPPORT @HDF5_SUPPORT@)
-set(IFCOPENSHELL_WITH_PROJ @WITH_PROJ@)
-set(IFCOPENSHELL_USD_SUPPORT @USD_SUPPORT@)

 include(CMakeFindDependencyMacro)

-set(IFCOPENSHELL_BOOST_USE_STATIC_LIBS "@Boost_USE_STATIC_LIBS@")
-set(IFCOPENSHELL_BOOST_USE_STATIC_RUNTIME "@Boost_USE_STATIC_RUNTIME@")
-set(IFCOPENSHELL_BOOST_USE_MULTITHREADED "@Boost_USE_MULTITHREADED@")
-if(NOT "${IFCOPENSHELL_BOOST_USE_STATIC_LIBS}" STREQUAL "")
-    set(Boost_USE_STATIC_LIBS ${IFCOPENSHELL_BOOST_USE_STATIC_LIBS})
-endif()
-if(NOT "${IFCOPENSHELL_BOOST_USE_STATIC_RUNTIME}" STREQUAL "")
-    set(Boost_USE_STATIC_RUNTIME ${IFCOPENSHELL_BOOST_USE_STATIC_RUNTIME})
-endif()
-if(NOT "${IFCOPENSHELL_BOOST_USE_MULTITHREADED}" STREQUAL "")
-    set(Boost_USE_MULTITHREADED ${IFCOPENSHELL_BOOST_USE_MULTITHREADED})
-endif()
+set(Boost_USE_STATIC_LIBS ON)
+set(Boost_USE_STATIC_RUNTIME OFF)
+set(Boost_USE_MULTITHREADED ON)
 set(Boost_COMPONENTS
    system
    program_options
@@ -57,33 +43,13 @@ if(IFCOPENSHELL_WITH_ROCKSDB)
 endif()

 if(IFCOPENSHELL_IFCXML)
-    find_dependency(LibXml2)
+    find_dependency(LibXml2 CONFIG)
 endif()

 if(IFCOPENSHELL_WITH_CGAL)
    find_dependency(CGAL CONFIG)
 endif()

-if(IFCOPENSHELL_COLLADA_SUPPORT)
-    find_dependency(OpenCOLLADA)
-endif()
-
-if(IFCOPENSHELL_GLTF_SUPPORT)
-    find_dependency(nlohmann_json CONFIG)
-endif()
-
-if(IFCOPENSHELL_HDF5_SUPPORT)
-    find_dependency(HDF5 COMPONENTS C CXX)
-endif()
-
-if(IFCOPENSHELL_WITH_PROJ)
-    find_dependency(PROJ)
-endif()
-
-if(IFCOPENSHELL_USD_SUPPORT)
-    find_dependency(USD)
-endif()
-
 if(IFCOPENSHELL_WITH_OPENCASCADE)
    find_dependency(OpenCASCADE CONFIG)
    if(OpenCASCADE_VERSION VERSION_LESS "7.7.0")
@@ -1,6 +1,4 @@
 #!/usr/bin/python
-# /// script
-# ///
 ###############################################################################
 #                                                                             #
 # This file is part of IfcOpenShell.                                          #
@@ -126,9 +124,16 @@ ssl._create_default_https_context = ssl._create_unverified_context
 import time
 from collections.abc import Generator, Sequence
 from pathlib import Path
-from typing import Literal, Union
 from urllib.request import urlretrieve

+try:
+    from typing import Literal, Union
+except:
+    # python 3.6 compatibility for rocky 8
+    from typing import Union
+
+    from typing_extensions import Literal
+
 logger = logging.getLogger(__name__)
 logger.setLevel(logging.INFO)
 ch = logging.StreamHandler()
@@ -1089,19 +1094,10 @@ if "python" in targets and not USE_CURRENT_PYTHON_VERSION and "wasm" not in flag
            f"http://www.python.org/ftp/python/{PYTHON_VERSION}/",
            f"Python-{PYTHON_VERSION}.tgz",
        )
-        python_install = INSTALL_DIR / f"python-{PYTHON_VERSION}"
-        python_bin = python_install / "bin" / "python3"
+        python_bin = INSTALL_DIR / f"python-{PYTHON_VERSION}" / "bin" / "python3"
        # `_ssl` module is present -> we will be able to install `numpy` later
        # to verify IfcOpenShell installation
-        try:
-            run([str(python_bin), "-c", "import _ssl"])
-        except RuntimeError:
-            print(
-                "ERROR: Python was built without SSL support (_ssl module is missing). "
-                f"To fix this: remove the installed Python at {python_install}; "
-                "install OpenSSL development libraries and re-run."
-            )
-            raise
+        run([str(python_bin), "-c", "import _ssl"])

    if MAC_CROSS_COMPILE_INTEL:
        assert original_path
@@ -1519,7 +1515,7 @@ if "IfcOpenShell-Python" in targets:
        )
        # Copy setup.py where pyodide build system expects it.
        shutil.copy(REPO_PATH / "pyodide" / "setup.py", REPO_PATH)
-        # Empty pyproject so it's contents won't affect the resulting wheel
+        # Empty pyproject so it's contents won't affect the resulting wheelthe the
        # otherwise the wheel will use version and dependencies from toml, not setup.py.
        (REPO_PATH / "pyproject.toml").write_text("")

@@ -1,5 +1,3 @@
-# /// script
-# ///
 """
 Cache built dependencies for builds.

@@ -1,11 +1,6 @@
 #!/usr/bin/bash
 set -ex

-PYODIDE_VERSION=0.29.3
-PYODIDE_BUILD_VERSION=0.33.0
-PYODIDE_XBUILDENV_ROOT="${HOME}/.cache/.pyodide-xbuildenv-${PYODIDE_BUILD_VERSION}"
-PYODIDE_XBUILDENV="${PYODIDE_XBUILDENV_ROOT}/${PYODIDE_VERSION}"
-
 # Script is assuming that it will be possible to execute it multiple times
 # therefore we're clearing venv each time and ignoring existing 'emsdk' folder.

@@ -16,15 +11,21 @@ source .venv/bin/activate

 # Install pyodide cross build environment.
 # Instructions: https://pyodide.org/en/stable/development/building-packages.html
-uv pip install "pyodide-build==${PYODIDE_BUILD_VERSION}"
+uv pip install pyodide-build
 # `uv run` is required, so xbuildenv would skip using `pip`.
-uv run pyodide xbuildenv install "${PYODIDE_VERSION}"
-uv run pyodide xbuildenv install-emscripten
+uv run pyodide xbuildenv install

-EMSDK_ROOT="${PYODIDE_XBUILDENV}/emsdk"
-source "${EMSDK_ROOT}/emsdk_env.sh"
+# Emscripten doesn't come with xbuildenv.
+if [ ! -d emsdk ]; then
+  git clone https://github.com/emscripten-core/emsdk
+fi
+pushd emsdk
+PYODIDE_EMSCRIPTEN_VERSION=$(pyodide config get emscripten_version)
+./emsdk install ${PYODIDE_EMSCRIPTEN_VERSION}
+./emsdk activate ${PYODIDE_EMSCRIPTEN_VERSION}
+source emsdk_env.sh
 which emcc
-emcc --version
+popd

 mkdir -p packages/ifcopenshell
 VERSION=`cat IfcOpenShell/VERSION`
@@ -1,232 +0,0 @@
-#
-# /// script
-# # Latest Pyodide build env versions are listed here:
-# # https://pyodide.github.io/pyodide/api/pyodide-cross-build-environments.json
-# # https://github.com/pyodide/pyodide-build/blob/main/pyodide_build/xbuildenv_releases.py
-# requires-python = "==3.13.2"
-# dependencies = [
-#   "requests",
-#   "setuptools",
-# ]
-# ///
-"""
-Pack an IfcOpenShell WASM wheel using Pyodide build system.
-
-Usage:
-    uv run make_wheel.py           # Show this help
-    uv run make_wheel.py --build   # Build wheel
-    uv run make_wheel.py --clean   # Clean build artifacts and exit
-"""
-
-import argparse
-import os
-import re
-import shutil
-import subprocess
-import time
-import zipfile
-from pathlib import Path
-from urllib.parse import quote
-
-import requests
-
-# Get repo root (parent of this script's parent directory)
-REPO_ROOT = Path(__file__).parent.parent
-PYODIDE_DIR = REPO_ROOT / "pyodide"
-BUILD_DIR = PYODIDE_DIR / "build"
-
-# Hardcoded path (Windows packing workaround with --dev flag)
-PYODIDE_BUILD = Path(r"L:\Projects\Github\pyodide-build")
-
-# Wheel platform tag (from PYODIDE_EMSCRIPTEN_VERSION in pyodide-build/Makefile.envs)
-WHEEL_PLATFORM_TAG = "emscripten_4_0_9_wasm32"
-
-# Location where ifcopenshell will be extracted
-IFCOPENSHELL_DIR = PYODIDE_DIR / "ifcopenshell"
-
-
-class WheelBuilder:
-    @staticmethod
-    def extract_ifcopenshell_from_git(dst: Path) -> None:
-        """Extract ifcopenshell directory from git repo into destination."""
-        Tools.rmrf(dst)
-
-        print(f"Extracting ifcopenshell from git to {dst}...")
-        # Use git ls-files piped to git checkout-index to avoid copying
-        # untracked or ignored files from the actual repo.
-        ls_proc = subprocess.Popen(
-            ["git", "ls-files", "-z", "src/ifcopenshell-python/ifcopenshell"],
-            cwd=REPO_ROOT,
-            stdout=subprocess.PIPE,
-            stderr=subprocess.PIPE,
-        )
-        checkout_proc = subprocess.Popen(
-            ["git", "checkout-index", "-z", "--prefix", "pyodide/", "--stdin"],
-            cwd=REPO_ROOT,
-            stdin=ls_proc.stdout,
-            stdout=subprocess.PIPE,
-            stderr=subprocess.PIPE,
-        )
-        assert ls_proc.stdout is not None
-        ls_proc.stdout.close()
-        checkout_proc.communicate()
-
-        if checkout_proc.returncode != 0:
-            assert checkout_proc.stderr is not None
-            raise RuntimeError(f"Failed to extract: {checkout_proc.stderr.decode()}")
-
-        # Move src/ifcopenshell-python/ifcopenshell to ifcopenshell.
-        temp_src = PYODIDE_DIR / "src" / "ifcopenshell-python" / "ifcopenshell"
-        shutil.move(temp_src, dst)
-
-        # Clean up temporary src directory.
-        Tools.rmrf(PYODIDE_DIR / "src")
-
-        print("✓ Extracted ifcopenshell from git")
-
-    @staticmethod
-    def get_wheel_url(makefile_path: Path) -> str:
-        """Get S3 wheel URL based on BINARY_VERSION and BUILD_COMMIT from Makefile."""
-
-        def parse_makefile_vars() -> dict[str, str]:
-            content = makefile_path.read_text()
-            vars: dict[str, str] = {}
-            for match in re.finditer(r"^(BINARY_VERSION|BUILD_COMMIT):=(.+)$", content, re.MULTILINE):
-                vars[match.group(1)] = match.group(2).strip()
-            return vars
-
-        vars: dict[str, str] = parse_makefile_vars()
-        binary_version = vars["BINARY_VERSION"]
-        build_commit = vars["BUILD_COMMIT"]
-        filename = f"ifcopenshell-{binary_version}+{build_commit}-cp313-cp313-pyodide_2025_0_wasm32.whl"
-        encoded_filename = quote(filename, safe="")
-        return f"https://s3.amazonaws.com/ifcopenshell-builds/{encoded_filename}"
-
-    @staticmethod
-    def download_and_extract_so(url: str, build_dir: Path) -> tuple[Path, Path]:
-        """Download wheel from URL and extract .so and .py files."""
-        py_wrapper_filename = "ifcopenshell_wrapper.py"
-        build_dir.mkdir(parents=True, exist_ok=True)
-
-        wheel_path = build_dir / url.rsplit("/", 1)[-1]
-
-        if wheel_path.exists():
-            print(f"Using cached wheel: {wheel_path}")
-        else:
-            print(f"Downloading {url}...")
-            response = requests.get(url)
-            response.raise_for_status()
-            wheel_path.write_bytes(response.content)
-
-        print("Extracting _ifcopenshell_wrapper files...")
-        with zipfile.ZipFile(wheel_path) as zf:
-            so_files = [f for f in zf.namelist() if f.endswith(".so")]
-            py_files = [f for f in zf.namelist() if f.endswith(py_wrapper_filename)]
-
-            assert so_files, "No .so file found in wheel"
-            assert py_files, f"No {py_wrapper_filename} file found in wheel"
-
-            so_file = so_files[0]
-            so_dst = build_dir / Path(so_file).name
-            so_dst.write_bytes(zf.read(so_file))
-
-            py_file = py_files[0]
-            py_dst = build_dir / Path(py_file).name
-            py_dst.write_bytes(zf.read(py_file))
-
-        return so_dst, py_dst
-
-
-class Tools:
-    @staticmethod
-    def run(
-        cmd: list[str],
-        cwd: Path | None = None,
-    ) -> None:
-        print(f"$ {' '.join(cmd)}")
-        subprocess.check_call(cmd, cwd=cwd)
-
-    @staticmethod
-    def create_symlink(dst: Path, src: Path) -> None:
-        Tools.rmrf(dst)
-        dst.symlink_to(src)
-
-    @staticmethod
-    def rmrf(path: Path) -> None:
-        if path.exists() or path.is_symlink():
-            if path.is_dir() and not path.is_symlink():
-                shutil.rmtree(path)
-            else:
-                path.unlink()
-
-
-def clean() -> None:
-    """Remove build artifacts."""
-    paths_to_remove = (
-        BUILD_DIR,
-        PYODIDE_DIR / ".pyodide_build",
-        PYODIDE_DIR / "dist",
-        PYODIDE_DIR / "ifcopenshell.egg-info",
-        PYODIDE_DIR / "src",
-        IFCOPENSHELL_DIR,
-    )
-    for path in paths_to_remove:
-        if path.exists() or path.is_symlink():
-            print(f"Removing {path}...")
-            Tools.rmrf(path)
-    print("✓ Clean complete")
-
-
-def main() -> None:
-    parser = argparse.ArgumentParser(description=__doc__, add_help=False)
-    parser.add_argument("--build", action="store_true", help="Build the wheel")
-    parser.add_argument("--clean", action="store_true", help="Clean build folder")
-    parser.add_argument(
-        "--dev",
-        action="store_true",
-        help="Use editable pyodide-build from hardcoded path (Windows packing workaround)",
-    )
-    args = parser.parse_args()
-
-    if not args.build and not args.clean:
-        print(__doc__)
-        return
-
-    if args.clean:
-        clean()
-        return
-
-    start_time = time.time()
-
-    WheelBuilder.extract_ifcopenshell_from_git(IFCOPENSHELL_DIR)
-
-    print("Downloading and extracting _ifcopenshell_wrapper files...")
-    makefile = REPO_ROOT / "src" / "ifcopenshell-python" / "Makefile"
-    wheel_url = WheelBuilder.get_wheel_url(makefile)
-    so_file, py_file = WheelBuilder.download_and_extract_so(wheel_url, BUILD_DIR)
-
-    Tools.create_symlink(IFCOPENSHELL_DIR / Path(so_file).name, so_file)
-    Tools.create_symlink(IFCOPENSHELL_DIR / Path(py_file).name, py_file)
-
-    print("Installing pyodide-build...")
-    if args.dev:
-        Tools.run(["uv", "pip", "install", "-e", str(PYODIDE_BUILD)])
-    else:
-        Tools.run(["uv", "pip", "install", "pyodide-build"])
-
-    print("Building with pyodide...")
-    # Use --no-isolation due to pyodide-build Windows support issues:
-    # symlink_unisolated_packages fails with missing `_sysconfigdata_$(CPYTHON_ABI_FLAGS)_emscripten_wasm32-emscripten.py`.
-    # Hardcode platform name since pyodide doesn't yet support overriding wheel tags on Windows.
-    #
-    # Use `LEGACY_PLATFORM` since pyodide 0.34.1 introduced new tag for wheels `pyemscripten`,
-    # which doesn't work with pyodide itself yet - https://github.com/pyodide/pyodide/issues/6177.
-    os.environ["USE_LEGACY_PLATFORM"] = "1"
-    Tools.run(["pyodide", "build", f"-C--build-option=--plat-name={WHEEL_PLATFORM_TAG}"])
-
-    elapsed = time.time() - start_time
-    print(f"\n✓ Done! ({elapsed:.1f}s)")
-
-
-if __name__ == "__main__":
-    main()
@@ -2,16 +2,12 @@
 # because `tool.setuptools.ext-modules` is still experimental in pyproject.toml
 # and we need it to get the wheel suffix right.
 import os
-import sys
 from pathlib import Path

 import tomllib
 from setuptools import Extension, find_packages, setup
-from setuptools.command.build_ext import build_ext

-# Detect repo folder: if setup.py is in pyodide folder, go to parent
-SETUP_DIR = Path(__file__).parent
-REPO_FOLDER = SETUP_DIR.parent if SETUP_DIR.name == "pyodide" else SETUP_DIR
+REPO_FOLDER = Path(__file__).parent


 def get_version() -> str:
@@ -29,39 +25,6 @@ def get_dependencies() -> list[str]:
    return dependencies


-class UnixBuildExt(build_ext):
-    """Customize ``build_ext`` to support packing on Windows."""
-
-    def finalize_options(self):
-        from distutils import sysconfig
-
-        super().finalize_options()
-        if sys.platform == "win32":
-            self.compiler = "unix"
-
-            # Configure sysconfig for Windows builds
-            # CCSHARED is the only variable that's not customizable with env vars.
-            # Basically avoiding this:
-            # File ".venv\Lib\site-packages\setuptools\_distutils\sysconfig.py", line 366, in customize_compiler
-            #     compiler_so=cc_cmd + ' ' + ccshared,
-            #                 ~~~~~~~~~~~~~^~~~~~~~~~
-            # TypeError: can only concatenate str (not "NoneType") to str
-            sysconfig.get_config_vars()  # Initialize config cache
-            if sysconfig._config_vars.get("CCSHARED") is None:
-                sysconfig._config_vars["CCSHARED"] = "-fPIC"
-            # Override compiler type before it's instantiated
-
-        # Set Emscripten compiler environment variables
-        os.environ["CC"] = "emcc"
-        os.environ["CXX"] = "em++"
-        os.environ["CFLAGS"] = ""
-        os.environ["CXXFLAGS"] = ""
-        os.environ["LDSHARED"] = "emcc -shared"
-        os.environ["AR"] = "emar"
-        os.environ["ARFLAGS"] = "rcs"
-        os.environ["SETUPTOOLS_EXT_SUFFIX"] = ".cpython-313-wasm32-emscripten.so"
-
-
 setup(
    name="ifcopenshell",
    version=get_version(),
@@ -81,5 +44,4 @@ setup(
    },
    # Has to provide extension to get the correct wheel suffix.
    ext_modules=[Extension("ifcopenshell._ifcopenshell_wrapper", sources=[])],
-    cmdclass={"build_ext": UnixBuildExt},
 )
@@ -3,9 +3,8 @@ name = "IfcOpenShell"
 version = "0.0.0"
 dependencies = [
    "black==26.3.1",
-    "ruff==0.15.12",
+    "ruff==0.15.8",
    "poethepoet",
-    "ty==0.0.32",
    "gersemi==0.26.1",
 ]

@@ -29,9 +28,6 @@ extend-exclude = '''
 reportInvalidTypeForm = false
 disableBytesTypePromotions = true
 reportUnnecessaryTypeIgnoreComment = true
-reportRedeclaration = false
-# Ignore warnings from bpy stubs missing actual source files.
-reportMissingModuleSource = false
 # Pylance doesn't respect gitignore, so we have to exclude files manually here
 # to avoid VS Code slowing down.
 # https://github.com/microsoft/pylance-release/issues/5169
@@ -88,6 +84,7 @@ all = "ignore"
 # Structural rules (no deep type inference needed, easier to adapt).
 abstract-method-in-final-class = "error"
 ambiguous-protocol-member = "error"
+byte-string-type-annotation = "error"
 conflicting-declarations = "error"
 conflicting-metaclass = "error"
 cyclic-class-definition = "error"
@@ -99,6 +96,7 @@ empty-body = "error"
 escape-character-in-forward-annotation = "error"
 final-on-non-method = "error"
 final-without-value = "error"
+fstring-type-annotation = "error"
 ignore-comment-unknown-rule = "error"
 implicit-concatenated-string-type-annotation = "error"
 inconsistent-mro = "error"
@@ -215,7 +213,10 @@ exclude = [

 [tool.poe.tasks]

-ruff = "ruff check"
+ruff-main = "ruff check --extend-exclude nix/build-all.py"
+# It's actually Python 3.6, but ruff only supports 3.7+, but it should do.
+ruff-old = "ruff check nix/build-all.py --target-version py37"
+ruff.sequence = ["ruff-main", "ruff-old"]

 black = "black ."

@@ -223,7 +224,7 @@ ty.sequence = ["ty-bonsai", "ty-ios"]
 ty.help = "Run ty type checker. Requires ty-venv to be set up first."
 ty-bonsai = "ty check src/bonsai --python=src/bonsai/.venv"

-ty-venv.sequence = ["bonsai-deps", "ty-venv-bonsai", "ty-venv-ios"]
+ty-venv.sequence = ["ty-venv-bonsai", "ty-venv-ios"]

 ty-venv-bonsai.sequence = [
    {cmd = "uv venv src/bonsai/.venv --python=3.11 --allow-existing"},
@@ -235,7 +236,7 @@ ty-venv-ios.sequence = [
    {cmd = "uv pip install -r src/ifcopenshell-python/type-check-requirements.txt --python=src/ifcopenshell-python/.venv"},
 ]

-format.sequence = ["black", "ruff"]
+format.sequence = ["black", "ruff-main", "ruff-old"]

 cmake-format = "gersemi . --in-place"

@@ -17,8 +17,8 @@
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.

 SHELL := sh
-PYTHON:=python3
-PIP:=pip3
+PYTHON:=python3.11
+PIP:=pip3.11
 PATCH:=patch
 SED:=sed -i
 VENV_ACTIVATE:=bin/activate
@@ -48,7 +48,6 @@ VERSION_PATCH:=$(shell cat '../../VERSION' | cut -d '.' -f 3)
 VERSION_DATE:=$(shell date '+%y%m%d')
 LAST_COMMIT_HASH:=$(shell git rev-parse HEAD)
 LAST_COMMIT_DATE:=$(shell git show -s --format=%cI)
-LAST_GIT_BRANCH:=$(shell git rev-parse --abbrev-ref HEAD)
 PYPI_IMP:=cp

 ifdef PYVERSION
@@ -64,7 +63,6 @@ PYNUMBER:=3$(PYMINOR)
 PYPI_VERSION:=3.$(PYMINOR)
 endif # def PYVERSION

-IFCMERGE_VERSION:=2026-04-07

 ifdef PLATFORM
 SUPPORTED_PLATFORMS := linux macos macosm1 win
@@ -106,7 +104,7 @@ endif
 endif # def PLATFORM

 # Current build commit hash.
-OLD:=3e7b739
+OLD:=1c5b825
 .PHONY: bump
 bump:
 ifndef NEW
@@ -192,11 +190,7 @@ endif
 	# Provides networkx graph analysis for project dependency calculations
 	cd build && . env/$(VENV_ACTIVATE) && $(PIP) download networkx --dest=./wheels
 	# Required by IFCDiff
-	# Pinned <9.1: deepdiff 9.1.0 adds cachebox<6,>=5.2 which only ships macOS x86_64
-	# wheels for macosx_10_12+ and is incompatible with our macos py311 --platform
-	# macosx_10_10_x86_64 target. Revisit once the macos py311 platform tag is bumped
-	# to 10_13 (matching py312/py313).
-	cd build && . env/$(VENV_ACTIVATE) && $(PIP) download "deepdiff<9.1" --dest=./wheels
+	cd build && . env/$(VENV_ACTIVATE) && $(PIP) download deepdiff --dest=./wheels
 	# Required by IFCCSV and ifcopenshell.util.selector
 	cd build && . env/$(VENV_ACTIVATE) && $(PIP) download lark --dest=./wheels
 	# Required by IFC4D
@@ -245,9 +239,10 @@ endif

 	# required for three-way git merging
 ifeq ($(PLATFORM), win)
-	cd build/bonsai/libs/bin && wget https://github.com/brunopostle/ifcmerge/releases/download/$(IFCMERGE_VERSION)/ifcmerge.exe
+	cd build/bonsai/libs/bin && wget https://github.com/brunopostle/ifcmerge/releases/download/2025-01-26/ifcmerge.zip
+	cd build/bonsai/libs/bin && unzip ifcmerge.zip && rm ifcmerge.zip
 else
-	cd build/bonsai/libs/bin && wget https://raw.githubusercontent.com/brunopostle/ifcmerge/$(IFCMERGE_VERSION)/ifcmerge && chmod +x ifcmerge
+	cd build/bonsai/libs/bin && wget https://raw.githubusercontent.com/brunopostle/ifcmerge/main/ifcmerge && chmod +x ifcmerge
 endif

 	# Generate translations module for Bonsai build
@@ -266,7 +261,6 @@ else
 	$(SED) "s/0.0.0/$(VERSION)-alpha$(VERSION_DATE)/" build/bonsai/blender_manifest.toml
 	$(SED) "s/8888888/$(LAST_COMMIT_HASH)/" build/bonsai/__init__.py
 	$(SED) "s/9999999/$(LAST_COMMIT_DATE)/" build/bonsai/__init__.py
-	$(SED) "s/7777777/$(LAST_GIT_BRANCH)/" build/bonsai/__init__.py
 	$(SED) 's/version = "0.0.0"/version = "$(VERSION)-alpha$(VERSION_DATE)"/' build/pyproject.toml
 endif

@@ -360,10 +354,6 @@ else
 	pytest test/tool/test_$(MODULE).py --maxfail=1
 endif

-.PHONY: test-modal
-test-modal:
-	blender --enable-event-simulate --python test/modal/test_modal.py --window-maximized
-
 # Reregistering test is not added to the standard test suite because during unregister
 # Blender removes all Bonsai dependencies breaking dev-environment symlinks.
 .PHONY: test-reregister
@@ -43,7 +43,6 @@ from typing import TYPE_CHECKING, Any, Union

 last_commit_hash = "8888888"
 last_commit_date = "9999999"
-last_git_branch = "7777777"


 def get_last_commit_hash() -> Union[str, None]:
@@ -61,15 +60,6 @@ def get_last_commit_date() -> Union[str, None]:
    return last_commit_date


-def get_git_branch() -> Union[str, None]:
-    # Using this weird way to write 7777777,
-    # so makefile won't accidentally replace it here
-    # we'll be able to distinguish branch from placeholder value.
-    if last_git_branch == str(7_777777):
-        return None
-    return last_git_branch
-
-
 # Accessed from bonsai extension:
 bbim_semver: dict[str, Any] = {}

@@ -135,7 +125,6 @@ def get_debug_info(*, bonsai_failed_to_load: bool = False) -> dict[str, Any]:
        "bonsai_version": bbim_version,
        "bonsai_commit_hash": get_last_commit_hash(),
        "bonsai_commit_date": get_last_commit_date(),
-        "bonsai_git_branch": get_git_branch(),
        "last_actions": last_actions,
        "last_error": last_error,
    }
@@ -262,12 +251,10 @@ if IN_BLENDER:

            global last_commit_hash
            global last_commit_date
-            global last_git_branch
            path = Path(__file__).resolve().parent
            repo = git.Repo(str(path), search_parent_directories=True)
            last_commit_hash = repo.head.object.hexsha
            last_commit_date = repo.head.object.committed_datetime.isoformat()
-            last_git_branch = repo.active_branch.name
        except:
            pass

@@ -15,8 +15,6 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.

 import importlib
 import os
@@ -27,7 +25,7 @@ import bpy
 import bpy.utils.previews
 from bpy_extras.io_utils import ExportHelper, ImportHelper

-from . import handler, operator, parametric_lifecycle, prop, ui
+from . import handler, operator, prop, ui

 try:
    from bonsai.translations import translations_dict
@@ -90,7 +88,6 @@ modules = {
    "web": None,
    "light": None,
    "alignment": None,
-    "clip_box": 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,
@@ -160,6 +157,9 @@ classes = [
    ui.BIM_UL_tab_visibilities,
    ui.BIM_UL_panel_visibilities,
    ui.DocPreferences,
+    ui.GizmoPreferencesDoor,  # Register before GizmoPreferences
+    ui.GizmoPreferencesWindow,  # Register before GizmoPreferences
+    ui.GizmoPreferencesStair,  # Register before GizmoPreferences
    ui.GizmoPreferences,
    # ui.DefaultParameters and ui.BIM_ADDON_preferences are registered separately after modules (see late_classes below)
    # Tabs panel
@@ -268,8 +268,6 @@ def register():
    bpy.app.handlers.depsgraph_update_post.append(on_register)
    bpy.app.handlers.undo_post.append(handler.undo_post)
    bpy.app.handlers.redo_post.append(handler.redo_post)
-    # Must follow the two appends above so regenerators see restored IFC state.
-    parametric_lifecycle.install_parametric_lifecycle_handlers()
    bpy.app.handlers.load_post.append(handler.load_post)
    bpy.app.handlers.load_post.append(handler.loadIfcStore)
    bpy.types.Scene.BIMProperties = bpy.props.PointerProperty(type=prop.BIMProperties)
@@ -327,7 +325,6 @@ def unregister():

    unregister_classes(classes)

-    parametric_lifecycle.uninstall_parametric_lifecycle_handlers()
    bpy.app.handlers.load_post.remove(handler.load_post)
    bpy.app.handlers.load_post.remove(handler.loadIfcStore)
    del bpy.types.Scene.BIMProperties
@@ -1,96 +0,0 @@
-Copyright (c) 2011-2012, Nikita Volchenkov (<nikitavolchenkov@gmail.com>),
-with Reserved Font Name OpenGost Type B.
-
-Copyright (c) 2012, Valek Filippov (<frob@gnome.org>).
-
-This Font Software is licensed under the SIL Open Font License, Version 1.1.
-This license is copied below, and is also available with a FAQ at:
-http://scripts.sil.org/OFL
-
-
-----------------------------------------------------------
-SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
-----------------------------------------------------------
-
-PREAMBLE
-The goals of the Open Font License (OFL) are to stimulate worldwide
-development of collaborative font projects, to support the font creation
-efforts of academic and linguistic communities, and to provide a free and
-open framework in which fonts may be shared and improved in partnership
-with others.
-
-The OFL allows the licensed fonts to be used, studied, modified and
-redistributed freely as long as they are not sold by themselves. The
-fonts, including any derivative works, can be bundled, embedded, 
-redistributed and/or sold with any software provided that any reserved
-names are not used by derivative works. The fonts and derivatives,
-however, cannot be released under any other type of license. The
-requirement for fonts to remain under this license does not apply
-to any document created using the fonts or their derivatives.
-
-DEFINITIONS
-"Font Software" refers to the set of files released by the Copyright
-Holder(s) under this license and clearly marked as such. This may
-include source files, build scripts and documentation.
-
-"Reserved Font Name" refers to any names specified as such after the
-copyright statement(s).
-
-"Original Version" refers to the collection of Font Software components as
-distributed by the Copyright Holder(s).
-
-"Modified Version" refers to any derivative made by adding to, deleting,
-or substituting -- in part or in whole -- any of the components of the
-Original Version, by changing formats or by porting the Font Software to a
-new environment.
-
-"Author" refers to any designer, engineer, programmer, technical
-writer or other person who contributed to the Font Software.
-
-PERMISSION & CONDITIONS
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of the Font Software, to use, study, copy, merge, embed, modify,
-redistribute, and sell modified and unmodified copies of the Font
-Software, subject to the following conditions:
-
-1) Neither the Font Software nor any of its individual components,
-in Original or Modified Versions, may be sold by itself.
-
-2) Original or Modified Versions of the Font Software may be bundled,
-redistributed and/or sold with any software, provided that each copy
-contains the above copyright notice and this license. These can be
-included either as stand-alone text files, human-readable headers or
-in the appropriate machine-readable metadata fields within text or
-binary files as long as those fields can be easily viewed by the user.
-
-3) No Modified Version of the Font Software may use the Reserved Font
-Name(s) unless explicit written permission is granted by the corresponding
-Copyright Holder. This restriction only applies to the primary font name as
-presented to the users.
-
-4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
-Software shall not be used to promote, endorse or advertise any
-Modified Version, except to acknowledge the contribution(s) of the
-Copyright Holder(s) and the Author(s) or with their explicit written
-permission.
-
-5) The Font Software, modified or unmodified, in part or in whole,
-must be distributed entirely under this license, and must not be
-distributed under any other license. The requirement for fonts to
-remain under this license does not apply to any document created
-using the Font Software.
-
-TERMINATION
-This license becomes null and void if any of the above conditions are
-not met.
-
-DISCLAIMER
-THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
-OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
-COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
-DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
-OTHER DEALINGS IN THE FONT SOFTWARE.
@@ -5,7 +5,7 @@ FILE_NAME('EPset_Drawing.ifc','2020-01-01T00:00:00',$,$,'EPset_Drawing','EPset_D
 FILE_SCHEMA(('IFC4'));
 ENDSEC;
 DATA;
-#1=IFCPROPERTYSETTEMPLATE('2JhNIvqZrFnAgxfhK0XVQX',$,'EPset_Drawing','',.PSET_OCCURRENCEDRIVEN.,'IfcAnnotation/DRAWING',(#23,#22,#27,#24,#29,#30,#19,#12,#26,#9,#8,#7,#6,#4,#18,#11,#5,#20,#25,#14,#10,#17,#28,#16,#3,#21,#13,#15,#2));
+#1=IFCPROPERTYSETTEMPLATE('2JhNIvqZrFnAgxfhK0XVQX',$,'EPset_Drawing','',.PSET_OCCURRENCEDRIVEN.,'IfcAnnotation/DRAWING',(#23,#22,#27,#24,#19,#12,#26,#9,#8,#7,#6,#4,#18,#11,#5,#20,#25,#14,#10,#17,#28,#16,#3,#21,#13,#15,#2));
 #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.);
@@ -33,7 +33,5 @@ DATA;
 #26=IFCSIMPLEPROPERTYTEMPLATE('2iwERDOW55Pf4hCbuFRe1Q',$,'FillMode','Method to fill areas seen in projection',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
 #27=IFCSIMPLEPROPERTYTEMPLATE('1YF$qLzBzF19Io8aB2N8cE',$,'CutMode','Method for cutting geometry',.P_SINGLEVALUE.,'IfcLabel',$,$,$,$,$,.READWRITE.);
 #28=IFCSIMPLEPROPERTYTEMPLATE('1YSnFzurrEyRNtoLdmmddP',$,'BringToFront','The objects with these SVG classes will render in front of all other objects.Ex: IfcBeam, IfcColumn',.P_SINGLEVALUE.,'IfcText',$,$,$,$,$,.READWRITE.);
-#29=IFCSIMPLEPROPERTYTEMPLATE('0lP6Y8q9v2QhDnR4sT7uVx',$,'PerspectiveShiftX','Horizontal perspective camera shift stored as drawing metadata using Blender camera shift units.',.P_SINGLEVALUE.,'IfcReal',$,$,$,$,$,.READWRITE.);
-#30=IFCSIMPLEPROPERTYTEMPLATE('2mR8b1NcW5EoFyG7hJ9kLp',$,'PerspectiveShiftY','Vertical perspective camera shift stored as drawing metadata using Blender camera shift units.',.P_SINGLEVALUE.,'IfcReal',$,$,$,$,$,.READWRITE.);
 ENDSEC;
 END-ISO-10303-21;
@@ -1,119 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026
-#
-# This file is part of Bonsai.
-#
-# Bonsai 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.
-#
-# Bonsai 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 Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-"""Shared structural-change cache token for POST_VIEW decorators.
-
-Decorators include the token in their cache key and rebuild on bump."""
-
-from __future__ import annotations
-
-from collections.abc import Callable
-from typing import Any, Generic, TypeVar
-
-import bpy
-
-T = TypeVar("T")
-
-_DECORATOR_CACHE_TOKEN = 0
-
-
-def get_decorator_cache_token() -> int:
-    return _DECORATOR_CACHE_TOKEN
-
-
-def reset_for_test() -> None:
-    """Test-only: reset the cache token to 0 so bump-count assertions are stable."""
-    global _DECORATOR_CACHE_TOKEN
-    _DECORATOR_CACHE_TOKEN = 0
-
-
-@bpy.app.handlers.persistent
-def _bump_decorator_cache_token(*args: Any) -> None:
-    """depsgraph_update_post fires every animation frame and every driver
-    evaluation, even when no IFC-relevant ID block changed. Unconditional
-    bumping defeats the cache: an animated scene rebuilds every decorator
-    every viewport tick. Gate the depsgraph path on Object geometry or
-    transform updates; undo / redo / load have no depsgraph and always
-    invalidate.
-
-    Coverage assumption: ``TokenCache`` consumers key on Object identity
-    (depsgraph updates whose ``id`` is a ``bpy.types.Object``). Mesh /
-    Material / NodeTree updates that don't surface as an Object change
-    do NOT invalidate the token — a decorator that caches material- or
-    mesh-data-derived state must gate on a separate signal."""
-    global _DECORATOR_CACHE_TOKEN
-    if len(args) >= 2:
-        depsgraph = args[1]
-        if depsgraph is not None and hasattr(depsgraph, "updates"):
-            if not any(
-                (getattr(u, "is_updated_geometry", False) or getattr(u, "is_updated_transform", False))
-                and hasattr(u, "id")
-                and isinstance(u.id, bpy.types.Object)
-                for u in depsgraph.updates
-            ):
-                return
-    _DECORATOR_CACHE_TOKEN += 1
-
-
-def _hooks() -> tuple[Any, ...]:
-    return (
-        bpy.app.handlers.depsgraph_update_post,
-        bpy.app.handlers.undo_post,
-        bpy.app.handlers.redo_post,
-        bpy.app.handlers.load_post,
-    )
-
-
-def install_decorator_cache_handlers() -> None:
-    """Append the bump handler to each hook; idempotent."""
-    for hook in _hooks():
-        if _bump_decorator_cache_token not in hook:
-            hook.append(_bump_decorator_cache_token)
-
-
-def uninstall_decorator_cache_handlers() -> None:
-    for hook in _hooks():
-        try:
-            hook.remove(_bump_decorator_cache_token)
-        except ValueError:
-            pass
-
-
-class TokenCache(Generic[T]):
-    """Memoise a single value keyed on ``(caller_key, get_decorator_cache_token())``.
-
-    The token component invalidates the cache on depsgraph / undo / redo / load,
-    so cached ``bpy.types.Object`` references can't outlive the underlying ID
-    blocks. Holds exactly one entry — last key wins."""
-
-    __slots__ = ("_key", "_value")
-
-    def __init__(self) -> None:
-        self._key: tuple[Any, int] | None = None
-        self._value: T | None = None
-
-    def get_or_compute(self, key: Any, compute: Callable[[], T]) -> T:
-        token_key = (key, _DECORATOR_CACHE_TOKEN)
-        if token_key == self._key:
-            return self._value  # type: ignore[return-value]
-        value = compute()
-        self._key = token_key
-        self._value = value
-        return value
@@ -15,12 +15,11 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.

 import os
 import weakref
 from collections.abc import Callable
+from math import cos
 from typing import Union

 import bpy
@@ -32,32 +31,16 @@ from bpy.app.handlers import persistent
 from mathutils import Vector

 import bonsai.bim
-import bonsai.core.model as core_model
 import bonsai.tool as tool
-from bonsai.bim.decorator_cache import (
-    install_decorator_cache_handlers,
-    uninstall_decorator_cache_handlers,
-)
-from bonsai.bim.ifc import IfcStore, get_cache_or_detect_lock
+from bonsai.bim.ifc import IfcStore
 from bonsai.bim.module.aggregate.decorator import AggregateDecorator
 from bonsai.bim.module.georeference.decorator import GeoreferenceDecorator
-from bonsai.bim.module.model.array import (
-    ArrayPreviewDecorator,
-    ArraySelectionHighlightDecorator,
-)
 from bonsai.bim.module.model.data import AuthoringData
 from bonsai.bim.module.model.decorator import (
-    BendPreviewDecorator,
    BoundingBoxDecorator,
-    DoorSwingReadonlyDecorator,
-    MEPSegmentExtendPreviewDecorator,
-    MEPSystemPathDecorator,
    SlabDirectionDecorator,
    WallAxisDecorator,
-    WallFilletPreviewDecorator,
-    WallSystemPathDecorator,
 )
-from bonsai.bim.module.model.wall import WallGizmoPreviewDecorator
 from bonsai.bim.module.nest.decorator import NestDecorator

 cwd = os.path.dirname(os.path.realpath(__file__))
@@ -125,13 +108,19 @@ def active_object_callback():


 def update_bim_tool_props():
-    """Selection-driven BIM Tool sync: re-target user-intent enums
-    (ifc_class, relating_type_id) AND refresh header values
-    (extrusion_depth, length, x_angle) for the new active object."""
-    ctx = _resolve_bim_tool_context()
-    if ctx is None:
+    """update BIM Tools props (such as extrusion_depth, length and x_angle) when active object changes"""
+    obj = bpy.context.active_object
+
+    # bunch of checks to see if we're in a valid state
+    if not obj:
+        return
+    mode = bpy.context.mode
+    current_tool = bpy.context.workspace.tools.from_space_view3d_mode(mode)
+    if not current_tool or current_tool.idname not in tool.Blender.get_list_of_tools():
+        return
+    element = tool.Ifc.get_entity(obj)
+    if not element:
        return
-    obj, current_tool, element = ctx

    props = tool.Model.get_model_props()
    aprops = tool.Drawing.get_annotation_props()
@@ -144,85 +133,18 @@ def update_bim_tool_props():

            if is_annotation_tool and (object_type := tool.Drawing.get_annotation_type_object_type(element_type)):
                aprops.object_type = object_type
-                try:
-                    aprops.relating_type_id = str(element_type.id())
-                except TypeError:
-                    # EnumProperty items are rebuilt asynchronously when ifc_class changes;
-                    # this assignment can race a stale item list. Skipping is harmless —
-                    # the UI will resync on the next active_object_callback.
-                    pass
+                aprops.relating_type_id = str(element_type.id())
                return

            if is_bim_tool:
-                try:
-                    props.ifc_class = element_type.is_a()
-                except TypeError:
-                    # ifc_class only lists element/space types present in the model, so an
-                    # unsupported type (e.g. a raw IfcTypeProduct) or a stale item list mid-
-                    # rebuild raises `enum "<class>" not found`. Skip rather than crash the
-                    # handler — it re-fires on the next selection and the panel resyncs.
-                    pass
+                props.ifc_class = element_type.is_a()

-            # Only assign when the target enum is the one that lists this type — otherwise
-            # we hit `enum "<id>" not found in (...)` if the user selects an element of a
-            # different class than the workspace tool was built for (e.g. selecting a wall
-            # while the door tool is active).
-            tool_class_match = TOOLS_TO_CLASSES_MAP.get(current_tool.idname) == element_type.is_a()
-            bim_tool_class_match = is_bim_tool and props.ifc_class == element_type.is_a()
-            if bim_tool_class_match or tool_class_match:
-                try:
-                    props.relating_type_id = str(element_type.id())
-                except TypeError:
-                    # Defensive: the enum item list can lag behind ifc_class assignment
-                    # above. Skipping leaves the panel briefly out of sync rather than
-                    # crashing the handler (which Blender re-fires on every selection).
-                    pass
+            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())

    if is_annotation_tool:
        return

-    _read_headers_into_props(obj, element)
-
-
-def refresh_bim_tool_headers():
-    """Push the active IFC entity's current header float values
-    (extrusion_depth, length, x_angle) into ``BIMModelProperties``.
-    Enum-safe: never writes user-intent enum slots, which are owned by
-    the selection callback."""
-    ctx = _resolve_bim_tool_context()
-    if ctx is None:
-        return
-    obj, current_tool, element = ctx
-    if current_tool.idname not in tool.Blender.get_property_header_tools():
-        return
-    _read_headers_into_props(obj, element)
-
-
-def _resolve_bim_tool_context():
-    """Return ``(obj, current_tool, element)`` when an active BIM workspace
-    tool sees a resolvable IFC element; ``None`` otherwise. Defensive
-    against stripped operator contexts — a missing ``active_object`` /
-    ``mode`` / ``workspace`` short-circuits to ``None`` instead of raising."""
-    obj = tool.Blender.get_active_object()
-    if not obj:
-        return None
-    mode = getattr(bpy.context, "mode", None)
-    workspace = getattr(bpy.context, "workspace", None)
-    if mode is None or workspace is None:
-        return None
-    current_tool = workspace.tools.from_space_view3d_mode(mode)
-    if not current_tool or current_tool.idname not in tool.Blender.get_list_of_tools():
-        return None
-    element = tool.Ifc.get_entity(obj)
-    if not element:
-        return None
-    return obj, current_tool, element
-
-
-def _read_headers_into_props(obj, element):
-    """Populate ``BIMModelProperties`` header values from the active
-    object's IFC extrusion. Enum-safe: writes only header floats, never
-    user-intent enum slots, so it is safe to call on the post-commit hook."""
    representation = ifcopenshell.util.representation.get_representation(element, "Model", "Body", "MODEL_VIEW")
    if not representation:
        return
@@ -240,13 +162,10 @@ def _read_headers_into_props(obj, element):
    if not AuthoringData.is_loaded:
        AuthoringData.load()

-    props = tool.Model.get_model_props()
    if AuthoringData.data["active_material_usage"] == "LAYER2":
        x_angle = get_x_angle(extrusion)
        axis = tool.Model.get_wall_axis(obj)["reference"]
-        props.extrusion_depth = core_model.vertical_height_from_extrusion_depth(
-            extrusion.Depth * si_conversion, x_angle
-        )
+        props.extrusion_depth = abs(extrusion.Depth * si_conversion * cos(x_angle))
        props.length = (axis[1] - axis[0]).length
        props.x_angle = x_angle

@@ -320,11 +239,9 @@ def loadIfcStore(scene: bpy.types.Scene) -> None:
    IfcStore.purge()
    refresh_ui_data()
    if not tool.Ifc.get():
-        tool.Autosave.cancel_timer()
        return
    tool.Ifc.schema()
    IfcStore.relink_all_objects()
-    tool.Autosave.reset_timer()


@persistent
@@ -439,10 +356,8 @@ def subscribe_to_viewport_shading_changes():
            )


-def _apply_save_file_invariants(scene: bpy.types.Scene) -> None:
-    """Invariants enforced on every load_post: msgbus subscription, IFC owner
-    settings, scene-bound caches, load-transient parametric state, and the
-    multi-instance lock probe."""
+@persistent
+def load_post(scene):
    global global_subscription_owner
    active_object_key = bpy.types.LayerObjects, "active"
    bpy.msgbus.subscribe_rna(
@@ -453,23 +368,6 @@ def _apply_save_file_invariants(scene: bpy.types.Scene) -> None:
    ifcopenshell.api.owner.settings.get_application = get_application
    AuthoringData.type_thumbnails = {}

-    tool.Parametric.on_load_post(scene)
-
-    if tool.Ifc.get() and bpy.data.is_saved:
-        props = tool.Blender.get_bim_props()
-        props.has_blend_warning = True
-
-    # Probe the H5 cooked-geometry cache so the multi-instance warning surfaces
-    # right after .blend load. Without this, the lock is only detected when a
-    # mutation triggers ``clear_cache`` — by which time the user has already
-    # made changes that may now conflict with the other Blender instance.
-    if tool.Ifc.get():
-        get_cache_or_detect_lock()
-
-
-def _apply_user_preferences() -> None:
-    """User-preference-driven UI setup: toolbar, BIM workspace, viewport shading
-    subscription, scene-panel hijack, tab layout, snap defaults."""
    preferences = tool.Blender.get_addon_preferences()
    if not preferences.should_setup_toolbar:
        tool.Blender.unregister_toolbar()
@@ -493,21 +391,11 @@ def _apply_user_preferences() -> None:
        tool.Blender.override_scene_panel(panel)
    tool.Blender.setup_tabs()

-    if preferences.should_use_snap and (scene := bpy.context.scene):
-        # Snapping is off by default in Blender, but in BIM, it's more useful to be on
-        scene.tool_settings.use_snap = True
-        # Match default Bonsai snaps
-        scene.tool_settings.snap_elements_base = {"EDGE", "EDGE_PERPENDICULAR", "VERTEX", "EDGE_MIDPOINT", "FACE"}
+    if tool.Ifc.get() and bpy.data.is_saved:
+        props = tool.Blender.get_bim_props()
+        props.has_blend_warning = True

-    tool.Blender.sync_old_preferences()
-
-
-def _install_viewport_overlays() -> None:
-    """Sync every Bonsai viewport decorator to its enabled state.
-
-    Wrapped in uninstall/install of the decorator-cache bump handlers so a
-    decorator's own install path doesn't double-bind to depsgraph_update_post
-    via ``TokenCache`` instances created during their own ``install()``."""
+    # Bonsai overlays
    georeference_props = tool.Georeference.get_georeference_props()
    aggregate_props = tool.Aggregate.get_aggregate_props()
    nest_props = tool.Nest.get_nest_props()
@@ -517,62 +405,23 @@ def _install_viewport_overlays() -> None:
    NestDecorator.uninstall()
    WallAxisDecorator.uninstall()
    SlabDirectionDecorator.uninstall()
-    MEPSystemPathDecorator.uninstall()
-    WallSystemPathDecorator.uninstall()
-    WallFilletPreviewDecorator.uninstall()
-    BendPreviewDecorator.uninstall()
-    MEPSegmentExtendPreviewDecorator.uninstall()
-    WallGizmoPreviewDecorator.uninstall()
-    DoorSwingReadonlyDecorator.uninstall()
-    ArrayPreviewDecorator.uninstall()
-    ArraySelectionHighlightDecorator.uninstall()
-    uninstall_decorator_cache_handlers()
-    try:
-        if georeference_props.should_visualise:
-            GeoreferenceDecorator.install(bpy.context)
-        if aggregate_props.aggregate_decorator:
-            AggregateDecorator.install(bpy.context)
-        if nest_props.nest_decorator:
-            NestDecorator.install(bpy.context)
-        if model_props.show_wall_axis:
-            WallAxisDecorator.install(bpy.context)
-        if model_props.show_slab_direction:
-            SlabDirectionDecorator.install(bpy.context)
-        if model_props.show_paths:
-            MEPSystemPathDecorator.install(bpy.context)
-            WallSystemPathDecorator.install(bpy.context)
-        if model_props.show_bounding_box:
-            BoundingBoxDecorator.install(bpy.context)
-        # Always-installed: draw() self-polls on Scene.BIMPreviewProperties.
-        # wall_fillet.is_active, so installation has no cost when no preview
-        # is open. No corresponding addon-preference toggle.
-        WallFilletPreviewDecorator.install(bpy.context)
-        # Always-installed siblings of WallFilletPreviewDecorator: each
-        # self-polls on its own scene.BIMPreviewProperties subgroup or on
-        # selection + hover gizmo state — zero cost when nothing is active.
-        BendPreviewDecorator.install(bpy.context)
-        MEPSegmentExtendPreviewDecorator.install(bpy.context)
-        # Always-installed: draw_lines() self-polls on selection + hover state
-        # for join / extend-to-wall / cursor-extend / cursor-split previews.
-        # Free when no preview-eligible state is active.
-        WallGizmoPreviewDecorator.install(bpy.context)
-        # Always-installed: draw() self-polls on active object + IfcDoor +
-        # parametric pset, so the cost is one bpy/IFC lookup per redraw when
-        # nothing eligible is selected.
-        DoorSwingReadonlyDecorator.install(bpy.context)
-        # Always-installed: draw() self-polls on the active object's array
-        # family membership, so installation has no cost when no array
-        # element is selected.
-        ArraySelectionHighlightDecorator.install(bpy.context)
-        # Always-installed: draw() self-polls on props.is_editing — only
-        # paints during an active array edit lifecycle.
-        ArrayPreviewDecorator.install(bpy.context)
-    finally:
-        install_decorator_cache_handlers()
+    if georeference_props.should_visualise:
+        GeoreferenceDecorator.install(bpy.context)
+    if aggregate_props.aggregate_decorator:
+        AggregateDecorator.install(bpy.context)
+    if nest_props.nest_decorator:
+        NestDecorator.install(bpy.context)
+    if model_props.show_wall_axis:
+        WallAxisDecorator.install(bpy.context)
+    if model_props.show_slab_direction:
+        SlabDirectionDecorator.install(bpy.context)
+    if model_props.show_bounding_box:
+        BoundingBoxDecorator.install(bpy.context)

+    if preferences.should_use_snap and (scene := bpy.context.scene):
+        # Snapping is off by default in Blender, but in BIM, it's more useful to be on
+        scene.tool_settings.use_snap = True
+        # Match default Bonsai snaps
+        scene.tool_settings.snap_elements_base = {"EDGE", "EDGE_PERPENDICULAR", "VERTEX", "EDGE_MIDPOINT", "FACE"}

-@persistent
-def load_post(scene):
-    _apply_save_file_invariants(scene)
-    _apply_user_preferences()
-    _install_viewport_overlays()
+    tool.Blender.sync_old_preferences()
@@ -64,44 +64,6 @@ class TransactionStep(TypedDict):
    operations: list[Operation]


-# Set when ``IfcStore.get_cache`` observes an external lock on the HDF5 cache —
-# signal that another Blender process has the same IFC file open. Project panel
-# polls ``is_cache_locked_by_other_process`` to warn the user. The dismissed
-# flag is sticky per-session so the warning doesn't re-nag once the user has
-# acknowledged it.
-_cache_locked_by_other_process: bool = False
-_multi_instance_warning_dismissed: bool = False
-
-
-def is_cache_locked_by_other_process() -> bool:
-    return _cache_locked_by_other_process and not _multi_instance_warning_dismissed
-
-
-def dismiss_multi_instance_warning() -> None:
-    global _multi_instance_warning_dismissed
-    _multi_instance_warning_dismissed = True
-
-
-def get_cache_or_detect_lock() -> ifcopenshell.geom.serializers.hdf5 | None:
-    """Like ``IfcStore.get_cache`` but tracks the multi-instance lock flag — sets
-    it on ``PermissionError``, clears it (along with the dismiss flag) when a
-    subsequent call succeeds. Returns ``None`` on lock; other exceptions
-    propagate. Callers that don't need the warning side effect can use
-    ``IfcStore.get_cache`` directly."""
-    global _cache_locked_by_other_process, _multi_instance_warning_dismissed
-    try:
-        cache = IfcStore.get_cache()
-    except PermissionError:
-        _cache_locked_by_other_process = True
-        return None
-    if _cache_locked_by_other_process:
-        # Lock released — clear both flags so a future re-locking re-surfaces
-        # the warning rather than staying suppressed by the previous dismiss.
-        _cache_locked_by_other_process = False
-        _multi_instance_warning_dismissed = False
-    return cache
-
-
 class IfcStore:
    path: str = ""
    """Should be set only using ``tool.Ifc.set_path``."""
@@ -234,7 +196,7 @@ class IfcStore:
                shutil.copy2(IfcStore.cache_path, new_cache_path)
            except PermissionError:
                pass  # Well we tried. No cache for you!
-        get_cache_or_detect_lock()
+        IfcStore.get_cache()

    @staticmethod
    def load_file(path: str) -> None:
@@ -552,7 +514,6 @@ class IfcStore:
                    BrickStore.end_transaction()
                IfcStore.end_transaction(operator)
                bonsai.bim.handler.refresh_ui_data()
-                tool.Parametric.refresh_post_commit(operator)

                if method == "MODAL":
                    cls.modal_in_progress = False
@@ -566,19 +527,6 @@ class IfcStore:
                result = getattr(operator, "_modal")(context, event)
        except:
            bonsai.last_error = traceback.format_exc()
-            # An operator that mutated IFC then raised leaves the IFC graph captured
-            # by the transaction but the Blender side stale. Blender does not push an
-            # undo step for a raised operator (mirror of the CANCELLED-modal gap
-            # handled below), so we push one here so Ctrl+Z actually rewinds the
-            # partial mutation, then surface the recovery path to the user.
-            ifc_file = tool.Ifc.get()
-            if ifc_file and ifc_file.transaction and ifc_file.transaction.operations:
-                bpy.ops.ed.undo_push(message=f"Recover {operator.bl_idname}")
-                operator.report(
-                    {"WARNING"},
-                    "Operation partially completed (IFC changed, Blender state may be stale). "
-                    "Press Ctrl+Z to restore the previous state.",
-                )
            # Try to ensure undo will work since Blender undo does work in case of errors.
            # As error come unexpectedly, it's important that user might have a chance to save the file
            # before they got the error and not to lose the work they've done.
@@ -64,8 +64,8 @@ class MaterialCreator:
        mesh: Union[OBJECT_DATA_TYPE, None],
        shape_has_openings: bool,
    ) -> None:
-        if ((rep := getattr(element, "Representation", ...)) is not ... and not rep) or (
-            (rep := getattr(element, "RepresentationMaps", ...)) is not ... and not rep
+        if (((rep := getattr(element, "Representation", ...)) is not ... and not rep) or
+            ((rep := getattr(element, "RepresentationMaps", ...)) is not ... and not rep)
        ):
            return

@@ -223,7 +223,6 @@ class IfcImporter:
        self.elements: set[ifcopenshell.entity_instance] = set()
        self.annotations: set[ifcopenshell.entity_instance] = set()
        self.gross_elements: set[ifcopenshell.entity_instance] = set()
-        self.broken_arrays: set[ifcopenshell.entity_instance] = set()
        self.element_types: set[ifcopenshell.entity_instance] = set()
        self.spatial_elements: set[ifcopenshell.entity_instance] = set()
        self.meshes: dict[str, OBJECT_DATA_TYPE] = {}
@@ -1220,18 +1219,8 @@ class IfcImporter:
                        if element not in elements_to_import:
                            continue
                    for i in range(len(data)):
-                        tool.Array.set_children_lock_state(element, i, True)
-                    tool.Array.constrain_children_to_parent(element)
-                    for layer in data:
-                        for child_guid in layer.get("children", ()):
-                            try:
-                                self.file.by_guid(child_guid)
-                            except RuntimeError:
-                                print(
-                                    f"setup_arrays: array parent {element.GlobalId} references missing "
-                                    f"child GUID {child_guid!r}."
-                                )
-                                self.broken_arrays.add(element)
+                        tool.Blender.Modifier.Array.set_children_lock_state(element, i, True)
+                        tool.Blender.Modifier.Array.constrain_children_to_parent(element)

    def update_linked_aggregates(self):
        # TODO Remove this after a while. See commit 17d6b8a
@@ -20,6 +20,7 @@ import blf
 import bpy
 import gpu
 import ifcopenshell.util.element
+from bpy.types import SpaceView3D
 from bpy_extras import view3d_utils
 from gpu_extras.batch import batch_for_shader
 from mathutils import Vector
@@ -27,6 +28,12 @@ from mathutils import Vector
 import bonsai.tool as tool


+def transparent_color(color, alpha=0.1):
+    color = [i for i in color]
+    color[3] = alpha
+    return color
+
+
 def create_bounding_box(objs):
    # Initialize the bounding box coordinates
    min_x, min_y, min_z = float("inf"), float("inf"), float("inf")
@@ -72,11 +79,29 @@ def create_bounding_box(objs):
    return indices, edges


-class AggregateDecorator(tool.Blender.ViewportDecorator):
-    draw_method = "draw_aggregate"
+class AggregateDecorator:
+    is_installed = False
+    handlers = []
+
+    @classmethod
+    def install(cls, context):
+        if cls.is_installed:
+            cls.uninstall()
+        handler = cls()
+        cls.handlers.append(SpaceView3D.draw_handler_add(handler.draw_aggregate, (context,), "WINDOW", "POST_VIEW"))
+        cls.is_installed = True
+
+    @classmethod
+    def uninstall(cls):
+        for handler in cls.handlers:
+            try:
+                SpaceView3D.draw_handler_remove(handler, "WINDOW")
+            except ValueError:
+                pass
+        cls.is_installed = False

    def dotted_line_shader(self):
-        vert_out = gpu.types.GPUStageInterfaceInfo("my_interface")
+        vert_out = gpu.types.GPUStageInterfaceInfo("my_interface")  # ty:ignore[too-many-positional-arguments]
        vert_out.smooth("FLOAT", "v_ArcLength")

        shader_info = gpu.types.GPUShaderCreateInfo()
@@ -128,6 +153,14 @@ class AggregateDecorator(tool.Blender.ViewportDecorator):
        shader.uniform_float("u_Scale", 25)
        batch.draw(shader)

+    def draw_batch(self, shader_type, content_pos, color, indices=None):
+        if not tool.Blender.validate_shader_batch_data(content_pos, indices):
+            return
+        shader = self.line_shader if shader_type == "LINES" else self.shader
+        batch = batch_for_shader(shader, shader_type, {"pos": content_pos}, indices=indices)
+        shader.uniform_float("color", color)
+        batch.draw(shader)
+
    def draw_aggregate(self, context):
        props = tool.Aggregate.get_aggregate_props()
        self.addon_prefs = tool.Blender.get_addon_preferences()
@@ -158,13 +191,12 @@ class AggregateDecorator(tool.Blender.ViewportDecorator):
                aggregates.append(obj)
                continue

-            aggregate = None
            aggregates_list = tool.Aggregate.get_aggregates_recursively(element)
            if props.in_aggregate_mode and props.editing_aggregate:
                index = aggregates_list.index(tool.Ifc.get_entity(props.editing_aggregate))
                if index > 0:
                    aggregate = aggregates_list[index - 1]
-            elif aggregates_list:
+            else:
                aggregate = aggregates_list[-1]
            if aggregate:
                aggregates.append(tool.Ifc.get_object(aggregate))
@@ -193,11 +225,39 @@ class AggregateDecorator(tool.Blender.ViewportDecorator):
            self.draw_custom_batch(line, decorator_color_unselected)


-class AggregateModeDecorator(tool.Blender.ViewportDecorator):
-    draw_methods = (
-        ("draw_aggregate_name", "POST_PIXEL"),
-        ("draw_aggregate_empty", "POST_VIEW"),
-    )
+class AggregateModeDecorator:
+    is_installed = False
+    handlers = []
+
+    @classmethod
+    def install(cls, context):
+        if cls.is_installed:
+            cls.uninstall()
+        handler = cls()
+        cls.handlers.append(
+            SpaceView3D.draw_handler_add(handler.draw_aggregate_name, (context,), "WINDOW", "POST_PIXEL")
+        )
+        cls.handlers.append(
+            SpaceView3D.draw_handler_add(handler.draw_aggregate_empty, (context,), "WINDOW", "POST_VIEW")
+        )
+        cls.is_installed = True
+
+    @classmethod
+    def uninstall(cls):
+        for handler in cls.handlers:
+            try:
+                SpaceView3D.draw_handler_remove(handler, "WINDOW")
+            except ValueError:
+                pass
+        cls.is_installed = False
+
+    def draw_batch(self, shader_type, content_pos, color, indices=None):
+        if not tool.Blender.validate_shader_batch_data(content_pos, indices):
+            return
+        shader = self.line_shader if shader_type == "LINES" else self.shader
+        batch = batch_for_shader(shader, shader_type, {"pos": content_pos}, indices=indices)
+        shader.uniform_float("color", color)
+        batch.draw(shader)

    def draw_aggregate_name(self, context):
        if context.mode == "EDIT_MESH":
@@ -73,22 +73,6 @@ def poll_related_object(self: "BIMObjectAggregateProperties", related_obj: bpy.t
    return True


-def update_relating_object(self, context):
-    if self.relating_object:
-        ifc_id = tool.Blender.get_object_bim_props(self.relating_object).ifc_definition_id
-        if ifc_id:
-            bpy.ops.bim.aggregate_assign_object(relating_object=ifc_id)
-            bpy.ops.bim.disable_editing_aggregate()
-
-
-def update_related_object(self, context):
-    if self.related_object:
-        ifc_id = tool.Blender.get_object_bim_props(self.related_object).ifc_definition_id
-        if ifc_id:
-            bpy.ops.bim.aggregate_assign_object(related_object=ifc_id)
-            bpy.ops.bim.disable_editing_aggregate()
-
-
 def update_aggregate_decorator(self, context):
    if self.aggregate_decorator:
        AggregateDecorator.install(bpy.context)
@@ -105,15 +89,12 @@ def update_aggregate_mode_decorator(self, context):

 class BIMObjectAggregateProperties(PropertyGroup):
    is_editing: BoolProperty(name="Is Editing")
-    relating_object: PointerProperty(
-        name="Relating Whole", type=bpy.types.Object, poll=poll_relating_object, update=update_relating_object
-    )
+    relating_object: PointerProperty(name="Relating Whole", type=bpy.types.Object, poll=poll_relating_object)
    related_object: PointerProperty(
        name="Related Part",
        description="Related Part, will be used to derive the Relating Object",
        type=bpy.types.Object,
        poll=poll_related_object,
-        update=update_related_object,
    )

    if TYPE_CHECKING:
@@ -139,7 +120,6 @@ class BIMAggregateProperties(PropertyGroup):
    previous_editing_aggregate: PointerProperty(name="Editing Aggregate", type=bpy.types.Object)
    editing_objects: CollectionProperty(type=Objects)
    not_editing_objects: CollectionProperty(type=Objects)
-    previously_selected_objects: CollectionProperty(type=Objects)
    aggregate_decorator: BoolProperty(
        name="Display Aggregate",
        default=False,
@@ -156,6 +136,5 @@ class BIMAggregateProperties(PropertyGroup):
        previous_editing_aggregate: Union[bpy.types.Object, None]
        editing_objects: bpy.types.bpy_prop_collection_idprop[Objects]
        not_editing_objects: bpy.types.bpy_prop_collection_idprop[Objects]
-        previously_selected_objects: bpy.types.bpy_prop_collection_idprop[Objects]
        aggregate_decorator: bool
        previous_state: bool
@@ -295,13 +295,13 @@ class ExplorerShowUIPopup(bpy.types.Operator):
    bl_description = "Show Explorer UI to select element as attribute value or edit it."
    bl_options = {"REGISTER", "UNDO"}

-    ifc_class: bpy.props.StringProperty()
+    ifc_class: bpy.props.StringProperty()  # pyright: ignore[reportRedeclaration]
    """Element IFC class."""
-    attribute_name: bpy.props.StringProperty()
+    attribute_name: bpy.props.StringProperty()  # pyright: ignore[reportRedeclaration]
    """IFC class attribute name."""
-    data_path: bpy.props.StringProperty()
+    data_path: bpy.props.StringProperty()  # pyright: ignore[reportRedeclaration]
    """Full data path"""
-    preselect_ifc_id: bpy.props.IntProperty(options={"SKIP_SAVE"})
+    preselect_ifc_id: bpy.props.IntProperty(options={"SKIP_SAVE"})  # pyright: ignore[reportRedeclaration]
    """IFC id to preselect in the popup."""

    if TYPE_CHECKING:
@@ -41,7 +41,7 @@ class BIMAttributeProperties(PropertyGroup):


 class ExplorerEntity(PropertyGroup):
-    ifc_definition_id: bpy.props.IntProperty()
+    ifc_definition_id: bpy.props.IntProperty()  # pyright: ignore[reportRedeclaration]

    if TYPE_CHECKING:
        ifc_definition_id: int
@@ -60,7 +60,7 @@ class BIMExplorerProperties(PropertyGroup):
            self.property_unset("editing_entity_id")
            self.entity_attributes.clear()

-    is_loaded: BoolProperty(
+    is_loaded: BoolProperty(  # pyright: ignore[reportRedeclaration]
        name="Toggle Explorer UI",
        update=update_is_loaded,
    )
@@ -76,15 +76,15 @@ class BIMExplorerProperties(PropertyGroup):
    def update_ifc_class(self, context: object) -> None:
        tool.Attribute.refresh_uilist_entities()

-    ifc_class: EnumProperty(
+    ifc_class: EnumProperty(  # pyright: ignore[reportRedeclaration]
        name="IFC Class To Search",
        items=get_ifc_class,
        update=update_ifc_class,
    )
-    entities: CollectionProperty(type=ExplorerEntity)
-    active_entity_index: IntProperty()
-    editing_entity_id: IntProperty()
-    entity_attributes: CollectionProperty(type=Attribute)
+    entities: CollectionProperty(type=ExplorerEntity)  # pyright: ignore[reportRedeclaration]
+    active_entity_index: IntProperty()  # pyright: ignore[reportRedeclaration]
+    editing_entity_id: IntProperty()  # pyright: ignore[reportRedeclaration]
+    entity_attributes: CollectionProperty(type=Attribute)  # pyright: ignore[reportRedeclaration]

    if TYPE_CHECKING:
        is_loaded: bool
@@ -48,14 +48,12 @@ def draw_ui(context: bpy.types.Context, layout: bpy.types.UILayout, attributes)
        row = layout.row()
        op = row.operator("bim.enable_editing_attributes", icon="GREASEPENCIL", text="Edit")

-        element = tool.Ifc.get_entity(obj)
-        key_prefix = "type." if (element and element.is_a("IfcTypeObject")) else ""
        for attribute in attributes:
            row = layout.row(align=True)
            row.label(text=attribute["name"])
            value = bonsai.bim.helper.get_display_value(attribute["value"])
            op = row.operator("bim.select_similar", text=value, icon="NONE", emboss=False)
-            op.key = key_prefix + attribute["name"]
+            op.key = attribute["name"]

    # TODO: reimplement, see #1222
    # if "IfcSite/" in context.active_object.name or "IfcBuilding/" in context.active_object.name:
@@ -56,6 +56,11 @@ class BoundaryDecorator:
        unselected_elements_color = self.addon_prefs.decorator_color_unselected
        special_elements_color = self.addon_prefs.decorator_color_special

+        def transparent_color(color, alpha=0.1):
+            color = [i for i in color]
+            color[3] = alpha
+            return color
+
        gpu.state.point_size_set(6)
        gpu.state.blend_set("ALPHA")

@@ -104,11 +109,7 @@ class BoundaryDecorator:

        if unselected_edges:
            self.draw_batch("LINES", unselected_vertices, special_elements_color, unselected_edges)
-            self.draw_batch(
-                "TRIS", unselected_vertices, tool.Blender.transparent_color(special_elements_color), unselected_tris
-            )
+            self.draw_batch("TRIS", unselected_vertices, transparent_color(special_elements_color), unselected_tris)
        if selected_edges:
            self.draw_batch("LINES", selected_vertices, selected_elements_color, selected_edges)
-            self.draw_batch(
-                "TRIS", selected_vertices, tool.Blender.transparent_color(selected_elements_color), selected_tris
-            )
+            self.draw_batch("TRIS", selected_vertices, transparent_color(selected_elements_color), selected_tris)
@@ -377,8 +377,6 @@ class EnableEditingBoundary(bpy.types.Operator):
            obj = tool.Ifc.get_object(entity)
            if entity and obj:
                setattr(bprops, blender_property, obj)
-        bprops.physical_or_virtual = boundary.PhysicalOrVirtualBoundary or "NOTDEFINED"
-        bprops.internal_or_external = boundary.InternalOrExternalBoundary or "NOTDEFINED"
        return {"FINISHED"}


@@ -394,8 +392,6 @@ class DisableEditingBoundary(bpy.types.Operator):
        bprops.is_editing = False
        for ifc_attribute, blender_property in EDITABLE_ATTRIBUTES.items():
            setattr(bprops, blender_property, None)
-        bprops.physical_or_virtual = "NOTDEFINED"
-        bprops.internal_or_external = "NOTDEFINED"
        return {"FINISHED"}


@@ -415,8 +411,6 @@ class EditBoundaryAttributes(bpy.types.Operator, tool.Ifc.Operator):
            obj = getattr(bprops, blender_property, None)
            entity = tool.Ifc.get_entity(obj)
            attributes[blender_property] = entity
-        attributes["physical_or_virtual"] = bprops.physical_or_virtual
-        attributes["internal_or_external"] = bprops.internal_or_external
        ifcopenshell.api.boundary.edit_attributes(tool.Ifc.get(), entity=boundary, **attributes)
        bpy.ops.bim.disable_editing_boundary()
        return {"FINISHED"}
@@ -21,7 +21,6 @@ from typing import TYPE_CHECKING, Union
 import bpy
 from bpy.props import (
    BoolProperty,
-    EnumProperty,
    PointerProperty,
 )
 from bpy.types import PropertyGroup
@@ -51,43 +50,12 @@ def element_filter(self: "BIMObjectBoundaryProperties", object: bpy.types.Object
    return False


-def get_internal_or_external_items(
-    self: "BIMObjectBoundaryProperties", context: bpy.types.Context | None
-) -> list[tuple[str, str, str]]:
-    items = [
-        ("INTERNAL", "Internal", ""),
-        ("EXTERNAL", "External", ""),
-    ]
-    ifc = tool.Ifc.get()
-    if not ifc or ifc.schema != "IFC2X3":
-        items += [
-            ("EXTERNAL_EARTH", "External Earth", ""),
-            ("EXTERNAL_WATER", "External Water", ""),
-            ("EXTERNAL_FIRE", "External Fire", ""),
-        ]
-    items.append(("NOTDEFINED", "Not Defined", ""))
-    return items
-
-
 class BIMObjectBoundaryProperties(PropertyGroup):
    is_editing: BoolProperty(name="Is Editing")
    relating_space: PointerProperty(name="RelatingSpace", type=bpy.types.Object, poll=space_filter)
    related_building_element: PointerProperty(name="RelatedBuildingElement", type=bpy.types.Object, poll=element_filter)
    parent_boundary: PointerProperty(name="ParentBoundary", type=bpy.types.Object, poll=boundary_filter)
    corresponding_boundary: PointerProperty(name="CorrespondingBoundary", type=bpy.types.Object, poll=boundary_filter)
-    physical_or_virtual: EnumProperty(
-        name="PhysicalOrVirtualBoundary",
-        items=[
-            ("PHYSICAL", "Physical", ""),
-            ("VIRTUAL", "Virtual", ""),
-            ("NOTDEFINED", "Not Defined", ""),
-        ],
-        default="NOTDEFINED",
-    )
-    internal_or_external: EnumProperty(
-        name="InternalOrExternalBoundary",
-        items=get_internal_or_external_items,
-    )

    if TYPE_CHECKING:
        is_editing: bool
@@ -95,8 +63,6 @@ class BIMObjectBoundaryProperties(PropertyGroup):
        related_building_element: Union[bpy.types.Object, None]
        parent_boundary: Union[bpy.types.Object, None]
        corresponding_boundary: Union[bpy.types.Object, None]
-        physical_or_virtual: str
-        internal_or_external: str  # values depend on schema: IFC2X3 omits EXTERNAL_EARTH/WATER/FIRE


 class BIMBoundaryProperties(PropertyGroup):
@@ -77,10 +77,6 @@ class BIM_PT_Boundary(Panel):
            self.draw_relation_editor(boundary, "RelatedBuildingElement", "related_building_element")
            self.draw_relation_editor(boundary, "ParentBoundary", "parent_boundary")
            self.draw_relation_editor(boundary, "CorrespondingBoundary", "corresponding_boundary")
-            row = self.layout.row()
-            row.prop(self.bprops, "physical_or_virtual")
-            row = self.layout.row()
-            row.prop(self.bprops, "internal_or_external")
        else:
            row = self.layout.row()
            row.operator("bim.enable_editing_boundary", icon="GREASEPENCIL", text="Edit")
@@ -88,8 +84,6 @@ class BIM_PT_Boundary(Panel):
            self.draw_relation_data(boundary, "RelatedBuildingElement")
            self.draw_relation_data(boundary, "ParentBoundary")
            self.draw_relation_data(boundary, "CorrespondingBoundary")
-            self.draw_enum_data(boundary, "PhysicalOrVirtualBoundary")
-            self.draw_enum_data(boundary, "InternalOrExternalBoundary")
            if hasattr(boundary, "InnerBoundaries"):
                for i, inner_boundary in enumerate(getattr(boundary, "InnerBoundaries", ())):
                    row = self.layout.row(align=True)
@@ -116,11 +110,6 @@ class BIM_PT_Boundary(Panel):
            else:
                row.label(text="")

-    def draw_enum_data(self, boundary, ifc_attribute: str):
-        row = self.layout.row(align=True)
-        row.label(text=ifc_attribute)
-        row.label(text=getattr(boundary, ifc_attribute, "") or "")
-
    def draw_relation_editor(self, boundary, ifc_attribute: str, blender_property: str):
        if hasattr(boundary, ifc_attribute):
            row = self.layout.row(align=True)
@@ -345,17 +345,9 @@ class CadArcFrom3Points(bpy.types.Operator):
 class CadOffset(bpy.types.Operator):
    bl_idname = "bim.cad_offset"
    bl_label = "CAD Offset"
-    bl_description = (
-        "Offset selected mesh geometry at provided distance, based on the current viewport angle. "
-        "Creates a copy by default, or moves the existing edges if Copy is disabled."
-    )
+    bl_description = "Copy selected mesh geometry at provided offset. Mesh copied based on the current viewport angle."
    bl_options = {"REGISTER", "UNDO"}
    distance: bpy.props.FloatProperty(name="Distance", default=0.1, subtype="DISTANCE")
-    copy: bpy.props.BoolProperty(
-        name="Copy",
-        description="Create a new offset copy of the geometry. If disabled, move the existing edges to the offset location",
-        default=True,
-    )

    @classmethod
    def poll(cls, context):
@@ -413,11 +405,6 @@ class CadOffset(bpy.types.Operator):
        rotation = Matrix.Rotation(pi / 2, 2, "Z")
        rotation_i = Matrix.Rotation(-pi / 2, 2, "Z")

-        # When not copying, the offset positions are gathered here and applied to
-        # the existing verts only after all loops are processed, so that the
-        # original coordinates are still available while computing offsets.
-        moved_verts = []
-
        # Create loops from edges
        loop_edges = set(edges)
        loops = []
@@ -530,15 +517,12 @@ class CadOffset(bpy.types.Operator):
                    offset_length = self.distance / sqrt((1 + normals[0].dot(normals[1])) / 2)
                    offset = mw.inverted().to_quaternion() @ (wp.to_quaternion() @ (new_normal * offset_length).to_3d())
                    new_vert = v1.co + offset
+                    new_verts.append(bm.verts.new(new_vert))
                else:
                    normal = (normals[0] * self.distance).to_3d()
                    offset = mw.inverted().to_quaternion() @ (wp.to_quaternion() @ normal)
                    new_vert = v1.co + offset
-
-                if self.copy:
                    new_verts.append(bm.verts.new(new_vert))
-                else:
-                    moved_verts.append((v1, new_vert))

                processed_verts.add(v1.index)

@@ -547,14 +531,9 @@ class CadOffset(bpy.types.Operator):

                v1 = v2

-            if self.copy:
-                [bm.edges.new((new_verts[i], new_verts[i + 1])) for i in range(len(new_verts) - 1)]
-                if is_closed:
-                    bm.edges.new((new_verts[len(new_verts) - 1], new_verts[0]))
-
-        # Move the existing edges to the offset location.
-        for vert, new_co in moved_verts:
-            vert.co = new_co
+            [bm.edges.new((new_verts[i], new_verts[i + 1])) for i in range(len(new_verts) - 1)]
+            if is_closed:
+                bm.edges.new((new_verts[len(new_verts) - 1], new_verts[0]))

        bm.verts.index_update()
        bm.edges.index_update()
@@ -27,11 +27,6 @@ class BIMCadProperties(PropertyGroup):
    resolution: bpy.props.IntProperty(name="Arc Resolution", min=1, default=1)
    radius: bpy.props.FloatProperty(name="Radius", default=0.1, subtype="DISTANCE")
    distance: bpy.props.FloatProperty(name="Distance", default=0.1, subtype="DISTANCE")
-    copy: bpy.props.BoolProperty(
-        name="Copy",
-        description="Create a new offset copy of the geometry. If disabled, move the existing edges to the offset location",
-        default=True,
-    )
    x: bpy.props.FloatProperty(name="X", default=0.2, subtype="DISTANCE")
    y: bpy.props.FloatProperty(name="Y", default=0.1, subtype="DISTANCE")
    gable_roof_edge_angle: bpy.props.FloatProperty(
@@ -42,7 +37,6 @@ class BIMCadProperties(PropertyGroup):
        resolution: int
        radius: float
        distance: float
-        copy: bool
        x: float
        y: float
        gable_roof_edge_angle: float
@@ -256,8 +256,6 @@ class CadHotkey(bpy.types.Operator):
        elif self.hotkey == "S_O":
            row = self.layout.row()
            row.prop(props, "distance")
-            row = self.layout.row()
-            row.prop(props, "copy")

        elif self.hotkey == "S_R":
            if tool.Geometry.is_profile_object_active():
@@ -293,7 +291,7 @@ class CadHotkey(bpy.types.Operator):
            bpy.ops.bim.cad_fillet(resolution=self.props.resolution, radius=self.props.radius)

    def hotkey_S_O(self):
-        bpy.ops.bim.cad_offset(distance=self.props.distance, copy=self.props.copy)
+        bpy.ops.bim.cad_offset(distance=self.props.distance)

    def hotkey_S_Q(self):
        obj = bpy.context.active_object
@@ -18,17 +18,43 @@

 import blf
 import gpu
+from bpy.types import SpaceView3D
 from bpy_extras.view3d_utils import location_3d_to_region_2d
+from gpu_extras.batch import batch_for_shader
 from mathutils import Vector

 import bonsai.tool as tool


-class ClashDecorator(tool.Blender.ViewportDecorator):
-    draw_methods = (
-        ("draw_text", "POST_PIXEL"),
-        ("draw_geometry", "POST_VIEW"),
-    )
+class ClashDecorator:
+    is_installed = False
+    handlers = []
+
+    @classmethod
+    def install(cls, context):
+        if cls.is_installed:
+            cls.uninstall()
+        handler = cls()
+        cls.handlers.append(SpaceView3D.draw_handler_add(handler.draw_text, (context,), "WINDOW", "POST_PIXEL"))
+        cls.handlers.append(SpaceView3D.draw_handler_add(handler.draw_geometry, (context,), "WINDOW", "POST_VIEW"))
+        cls.is_installed = True
+
+    @classmethod
+    def uninstall(cls):
+        for handler in cls.handlers:
+            try:
+                SpaceView3D.draw_handler_remove(handler, "WINDOW")
+            except ValueError:
+                pass
+        cls.is_installed = False
+
+    def draw_batch(self, shader_type, content_pos, color, indices=None):
+        if not tool.Blender.validate_shader_batch_data(content_pos, indices):
+            return
+        shader = self.line_shader if shader_type == "LINES" else self.shader
+        batch = batch_for_shader(shader, shader_type, {"pos": content_pos}, indices=indices)
+        shader.uniform_float("color", color)
+        batch.draw(shader)

    def draw_text(self, context):
        self.addon_prefs = tool.Blender.get_addon_preferences()
@@ -201,10 +201,16 @@ class ExecuteIfcClash(bpy.types.Operator, ExportHelper):
        "ALT+click to run a quick clash without selecting a file to save."
    )

-    filter_glob: bpy.props.StringProperty(default="*.bcf;*.json", options={"HIDDEN"})
-    format: bpy.props.EnumProperty(name="Format", items=[(i, i, "") for i in ("bcf", "json")])
-    filepath: bpy.props.StringProperty(subtype="FILE_PATH", options={"SKIP_SAVE"})
-    quick_clash: bpy.props.BoolProperty(
+    filter_glob: bpy.props.StringProperty(  # pyright: ignore[reportRedeclaration]
+        default="*.bcf;*.json", options={"HIDDEN"}
+    )
+    format: bpy.props.EnumProperty(  # pyright: ignore[reportRedeclaration]
+        name="Format", items=[(i, i, "") for i in ("bcf", "json")]
+    )
+    filepath: bpy.props.StringProperty(  # pyright: ignore[reportRedeclaration]
+        subtype="FILE_PATH", options={"SKIP_SAVE"}
+    )
+    quick_clash: bpy.props.BoolProperty(  # pyright: ignore[reportRedeclaration]
        options={"SKIP_SAVE"},
    )

@@ -37,12 +37,12 @@ from bonsai.bim.prop import BIMFilterGroup, StrProperty


 class ClashSource(PropertyGroup):
-    name: StringProperty(
+    name: StringProperty(  # pyright: ignore[reportRedeclaration]
        name="File",
        description="Absolute filepath to existing .ifc file to use as a clash source.",
    )
-    filter_groups: CollectionProperty(type=BIMFilterGroup, name="Filter Groups")
-    mode: EnumProperty(
+    filter_groups: CollectionProperty(type=BIMFilterGroup, name="Filter Groups")  # pyright: ignore[reportRedeclaration]
+    mode: EnumProperty(  # pyright: ignore[reportRedeclaration]
        items=[
            ("a", "All Elements", "All elements will be used for clashing"),
            ("i", "Include", "Only the selected elements are included for clashing"),
@@ -62,7 +62,7 @@ class Clash(PropertyGroup):
    b_global_id: StringProperty(name="B")
    a_name: StringProperty(name="A Name")
    b_name: StringProperty(name="B Name")
-    clash_type: EnumProperty(
+    clash_type: EnumProperty(  # pyright: ignore[reportRedeclaration]
        name="Clash Type",
        items=tuple((i, i, "") for i in CLASH_TYPE_ITEMS),
    )
@@ -1,130 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026 Dion Moult <dion@thinkmoult.com>
-#
-# This file is part of Bonsai.
-#
-# Bonsai 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.
-#
-# Bonsai 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 Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-import bpy
-from bpy.app.handlers import persistent
-
-import bonsai.tool as tool
-
-from . import face_quad, gizmos, operator, prop, ui
-
-classes = (
-    operator.BIM_OT_add_clip_box,
-    operator.BIM_OT_add_clip_box_for_source,
-    operator.BIM_OT_align_view_to_clip_face,
-    operator.BIM_OT_duplicate_clip_box,
-    operator.BIM_OT_remove_clip_box,
-    operator.BIM_OT_set_active_clip_box,
-    operator.BIM_OT_toggle_clip_box_enabled,
-    prop.BIMClipBoxProperties,
-    prop.BIMSceneClipBoxProperties,
-    face_quad.BIM_GT_box_face_quad,
-    face_quad.BIM_GT_box_face_outline,
-    gizmos.OBJECT_GGT_bim_clip_box,
-    ui.BIM_MT_clip_box_add_for_source,
-    ui.BIM_MT_clip_box_info,
-    ui.BIM_MT_clip_box_settings,
-    ui.BIM_UL_clip_box,
-    ui.BIM_PT_clip_box,
-)
-
-
-@persistent
-def _on_depsgraph_update(scene, depsgraph):
-    tool.ClipBox.on_depsgraph_update(scene, depsgraph)
-    tool.ClipBox.on_depsgraph_update_caps(scene, depsgraph)
-
-
-@persistent
-def _on_load_pre(filepath):
-    # Tear down any in-flight clip-box timers before Blender frees the
-    # WM / screens / areas / regions for the loading file. A refresh timer
-    # that survives the teardown fires against the new file's freshly-
-    # allocated regions before their GPU state is wired, CTD-ing inside
-    # GPU_matrix_ortho_set. The gate also blocks the depsgraph IFC-reload
-    # branch and is held closed until on_pre_view fires for the first time
-    # on the new file (first paint = GPU contexts wired).
-    tool.ClipBox._file_loading = True
-    tool.ClipBox._post_load_paint_pending = True
-    tool.ClipBox._cancel_pending_refresh()
-    tool.ClipBox._cancel_pending_cap_rebuild()
-
-
-@persistent
-def _on_load_post(filepath):
-    # The _file_loading gate is NOT cleared here: load_post fires before
-    # the new file's first paint, so GPU contexts may still be uninitialised.
-    # on_pre_view consumes _post_load_paint_pending to open the gate at the
-    # safe moment and kick the post-load re-arm.
-    # Restore the per-scene clip-box list from the project's BBIM_ClipBoxes
-    # pset. Runs after the standard load_post that creates Blender objects.
-    tool.ClipBox._last_seen_object_matrices.clear()
-    tool.ClipBox.load_from_project_pset()
-
-
-_draw_handler_pre = None
-_draw_handler_post = None
-
-
-def register():
-    global _draw_handler_pre, _draw_handler_post
-    bpy.types.Object.BIMClipBoxProperties = bpy.props.PointerProperty(type=prop.BIMClipBoxProperties)
-    bpy.types.Scene.BIMSceneClipBoxProperties = bpy.props.PointerProperty(type=prop.BIMSceneClipBoxProperties)
-    tool.ClipBox.reset_ownership()
-    if _on_depsgraph_update not in bpy.app.handlers.depsgraph_update_post:
-        bpy.app.handlers.depsgraph_update_post.append(_on_depsgraph_update)
-    if _on_load_pre not in bpy.app.handlers.load_pre:
-        bpy.app.handlers.load_pre.append(_on_load_pre)
-    if _on_load_post not in bpy.app.handlers.load_post:
-        bpy.app.handlers.load_post.append(_on_load_post)
-    if _draw_handler_pre is None:
-        _draw_handler_pre = bpy.types.SpaceView3D.draw_handler_add(tool.ClipBox.on_pre_view, (), "WINDOW", "PRE_VIEW")
-    if _draw_handler_post is None:
-        _draw_handler_post = bpy.types.SpaceView3D.draw_handler_add(
-            tool.ClipBox.on_post_view_caps, (), "WINDOW", "POST_VIEW"
-        )
-
-
-def unregister():
-    global _draw_handler_pre, _draw_handler_post
-    if _draw_handler_post is not None:
-        try:
-            bpy.types.SpaceView3D.draw_handler_remove(_draw_handler_post, "WINDOW")
-        except ValueError:
-            pass
-        _draw_handler_post = None
-    if _draw_handler_pre is not None:
-        try:
-            bpy.types.SpaceView3D.draw_handler_remove(_draw_handler_pre, "WINDOW")
-        except ValueError:
-            pass
-        _draw_handler_pre = None
-    if _on_load_post in bpy.app.handlers.load_post:
-        bpy.app.handlers.load_post.remove(_on_load_post)
-    if _on_load_pre in bpy.app.handlers.load_pre:
-        bpy.app.handlers.load_pre.remove(_on_load_pre)
-    if _on_depsgraph_update in bpy.app.handlers.depsgraph_update_post:
-        bpy.app.handlers.depsgraph_update_post.remove(_on_depsgraph_update)
-    tool.ClipBox._cancel_pending_refresh()
-    tool.ClipBox._cancel_pending_cap_rebuild()
-    tool.ClipBox._last_seen_object_matrices.clear()
-    tool.ClipBox.clear_clip_planes()
-    del bpy.types.Object.BIMClipBoxProperties
-    del bpy.types.Scene.BIMSceneClipBoxProperties
@@ -1,212 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026 Dion Moult <dion@thinkmoult.com>
-#
-# This file is part of Bonsai.
-#
-# Bonsai 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.
-#
-# Bonsai 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 Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-"""EnumProperty ``items=`` callbacks for the source-based clip-box picker.
-
-Each callback returns ``[(id_str, label, description)]`` where ``id_str`` is
-an IFC entity id stringified for entity-driven kinds, an IFC class name for
-``CLASS``, or a fixed status name for ``STATUS``. The clip-box operator
-turns the picked id into a ``matrix_world`` via the source-preset helper.
-"""
-
-from __future__ import annotations
-
-import bonsai.tool as tool
-
-EnumItems = list[tuple[str, str, str]]
-
-# Module-level cache. Blender's EnumProperty stores raw char pointers from the
-# tuples a callback returns, so the Python strings must outlive the draw call.
-# Stashing the latest result per kind keeps them alive across callback firings.
-_items_cache: dict[str, EnumItems] = {}
-
-# Sentinel id used for the "no options available" placeholder. The operator
-# treats this as an invalid pick and surfaces an ERROR.
-NO_OPTIONS_ID = "__none__"
-
-
-def _cache(kind: str, items: EnumItems) -> EnumItems:
-    _items_cache[kind] = items
-    return items
-
-
-def _no_options(label: str) -> EnumItems:
-    # Blender refuses to draw an EnumProperty with zero entries — show a
-    # placeholder so the dialog renders and the user sees the empty state.
-    return [(NO_OPTIONS_ID, label, "")]
-
-
-def _label(entity, ifc_class: str | None = None) -> str:
-    name = (getattr(entity, "Name", None) or "Unnamed").strip() or "Unnamed"
-    return f"{ifc_class}: {name}" if ifc_class else name
-
-
-def _build_items(kind: str, empty_label: str, build_fn) -> EnumItems:
-    """Shared shape for the IFC-driven enum callbacks.
-
-    Returns the no-IFC placeholder if no file is loaded, then runs
-    ``build_fn(ifc_file)``, sorts the result alphabetically by label, and
-    returns the empty-result placeholder if nothing matched. The output is
-    always routed through the module cache.
-    """
-    ifc = tool.Ifc.get()
-    if ifc is None:
-        return _cache(kind, _no_options("No IFC loaded"))
-    items = build_fn(ifc)
-    items.sort(key=lambda t: t[1].lower())
-    if not items:
-        return _cache(kind, _no_options(empty_label))
-    return _cache(kind, items)
-
-
-# Top-down spatial hierarchy so the picker reads in the order an architect
-# already thinks in, rather than a flat alphabetical mix. IfcSpace is excluded
-# — spaces are typically empty volumes used for room metadata, so clipping to
-# one rarely matches the user intent of "show me what's in this container".
-SPATIAL_CLASSES: tuple[str, ...] = (
-    "IfcProject",
-    "IfcSite",
-    "IfcBuilding",
-    "IfcBuildingStorey",
-)
-
-
-def spatial_items(self, context) -> EnumItems:
-    # Special-case: per-class sort within the hierarchy order rather than a
-    # flat alphabetical sort, so the dropdown reads project → site → building.
-    ifc = tool.Ifc.get()
-    if ifc is None:
-        return _cache("SPATIAL", _no_options("No IFC loaded"))
-    items: EnumItems = []
-    for ifc_class in SPATIAL_CLASSES:
-        try:
-            entities = ifc.by_type(ifc_class, include_subtypes=False)
-        except RuntimeError:
-            continue
-        for entity in sorted(entities, key=lambda e: (e.Name or "").lower()):
-            items.append((str(entity.id()), _label(entity, ifc_class), ""))
-    if not items:
-        return _cache("SPATIAL", _no_options("No spatial containers"))
-    return _cache("SPATIAL", items)
-
-
-def class_items(self, context) -> EnumItems:
-    # Special-case: the picker value IS the IFC class name, not an entity id,
-    # so the build shape differs from the other entity-driven callbacks.
-    ifc = tool.Ifc.get()
-    if ifc is None:
-        return _cache("CLASS", _no_options("No IFC loaded"))
-    # List only IFC classes ACTUALLY present in the file (not the whole
-    # schema), so the user picks from classes that can produce a non-empty
-    # clip volume. ``e.is_a()`` returns the most specific class per element.
-    present = sorted({e.is_a() for e in ifc.by_type("IfcProduct")})
-    if not present:
-        return _cache("CLASS", _no_options("No products"))
-    return _cache("CLASS", [(cls, cls, "") for cls in present])
-
-
-def type_items(self, context) -> EnumItems:
-    return _build_items(
-        "TYPE",
-        "No types defined",
-        lambda ifc: [(str(e.id()), _label(e, e.is_a()), "") for e in ifc.by_type("IfcTypeProduct")],
-    )
-
-
-def material_items(self, context) -> EnumItems:
-    return _build_items(
-        "MATERIAL",
-        "No materials defined",
-        lambda ifc: [(str(e.id()), _label(e), "") for e in ifc.by_type("IfcMaterial")],
-    )
-
-
-def profile_items(self, context) -> EnumItems:
-    # ProfileName is optional. Skip unnamed profiles — they can't be
-    # meaningfully picked from a flat list.
-    return _build_items(
-        "PROFILE",
-        "No named profiles",
-        lambda ifc: [
-            (str(e.id()), f"{e.is_a()}: {e.ProfileName}", "")
-            for e in ifc.by_type("IfcProfileDef")
-            if getattr(e, "ProfileName", None)
-        ],
-    )
-
-
-def drawing_items(self, context) -> EnumItems:
-    return _build_items(
-        "DRAWING",
-        "No drawings defined",
-        lambda ifc: [(str(e.id()), _label(e), "") for e in ifc.by_type("IfcAnnotation") if e.ObjectType == "DRAWING"],
-    )
-
-
-# Display labels for each status value. The id strings on the left are the
-# canonical Pset_*Common.Status enum values accepted by Bonsai's status query.
-STATUS_LABELS: tuple[tuple[str, str], ...] = (
-    ("No Status", "No Status"),
-    ("NEW", "New"),
-    ("EXISTING", "Existing"),
-    ("DEMOLISH", "Demolish"),
-    ("TEMPORARY", "Temporary"),
-    ("OTHER", "Other"),
-    ("NOTKNOWN", "Not Known"),
-    ("UNSET", "Unset"),
-)
-
-
-def status_items(self, context) -> EnumItems:
-    # Fixed enum; no IFC needed. Still routed through the cache to share the
-    # same string-lifetime guarantee as the other callbacks.
-    return _cache("STATUS", [(value, label, "") for value, label in STATUS_LABELS])
-
-
-def system_items(self, context) -> EnumItems:
-    # IfcStructuralAnalysisModel is a structural-grouping container, not a
-    # distribution system — excluded to match Bonsai's other system pickers.
-    return _build_items(
-        "SYSTEM",
-        "No systems defined",
-        lambda ifc: [
-            (str(e.id()), _label(e, e.is_a()), "")
-            for e in ifc.by_type("IfcSystem")
-            if not e.is_a("IfcStructuralAnalysisModel")
-        ],
-    )
-
-
-def group_items(self, context) -> EnumItems:
-    # include_subtypes=False so IfcSystem and IfcZone instances don't appear
-    # under Group as well — those get their own picker entries.
-    return _build_items(
-        "GROUP",
-        "No groups defined",
-        lambda ifc: [(str(e.id()), _label(e), "") for e in ifc.by_type("IfcGroup", include_subtypes=False)],
-    )
-
-
-def zone_items(self, context) -> EnumItems:
-    return _build_items(
-        "ZONE",
-        "No zones defined",
-        lambda ifc: [(str(e.id()), _label(e), "") for e in ifc.by_type("IfcZone")],
-    )
@@ -1,879 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026 Dion Moult <dion@thinkmoult.com>
-#
-# This file is part of Bonsai.
-#
-# Bonsai 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.
-#
-# Bonsai 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 Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-"""Generic face-quad resize gizmos for any axis-aligned local box.
-
-This module contains the box-agnostic core of the interactive
-face-resize gizmos: two Gizmo classes (a near-invisible click target
-welded to each face, and a thin colored edge outline), a per-redraw
-orchestrator that places six of each on a box, and the pure one-sided
-resize arithmetic. None of it knows about IFC, clip boxes, or
-``BIMSceneClipBoxProperties`` — a future camera-view-box adapter can
-reuse the same classes and helpers.
-
-Consumer contract — the adapter group must:
-
-1. Create six ``BIM_GT_box_face_quad`` and six ``BIM_GT_box_face_outline``
-   instances at ``setup()`` time, in :data:`FACE_ROUTES` order, and bind
-   each quad's ``move_get_cb`` / ``move_set_cb`` to closures that read
-   and mutate the box's host (e.g. an Empty's ``location`` / ``scale``).
-2. Call :func:`apply_face_quad_layout` from ``refresh()`` /
-   ``draw_prepare()`` with the box's local-frame ``bmin`` / ``bmax``,
-   the host's ``matrix_world``, the OBB rotation as a 4x4
-   (``Matrix.Identity(4)`` when the rotation rides in ``matrix_world``),
-   and the current ``region`` / ``rv3d``.
-3. Implement ``_lock_for(active_gz)`` / ``_unlock_all()`` on the group
-   for drag mutual exclusion; the quad's ``invoke`` / ``exit`` call them.
-
-The resize arithmetic in :func:`compute_face_resize` is pure: feed it
-the modal scalar plus drag-start snapshots and it returns the host's
-new scale-on-axis and new origin location.
-"""
-
-from __future__ import annotations
-
-import math
-from collections.abc import Sequence
-from typing import Any
-
-import bpy
-from bpy_extras.view3d_utils import location_3d_to_region_2d, region_2d_to_location_3d
-from mathutils import Matrix, Vector
-
-# ---------------------------------------------------------------------------
-# Public iteration order
-# ---------------------------------------------------------------------------
-
-# (axis, is_max) pairs. The adapter group's ``setup()`` MUST create its
-# six face-quad gizmos in this order so positional indexing into the
-# layout helper stays correct.
-FACE_ROUTES: tuple[tuple[int, bool], ...] = (
-    (0, False),
-    (0, True),
-    (1, False),
-    (1, True),
-    (2, False),
-    (2, True),
-)
-
-
-# ---------------------------------------------------------------------------
-# Public visual constants (adapter reads these in setup())
-# ---------------------------------------------------------------------------
-
-# Standard XYZ axis colors (Blender convention).
-AXIS_COLOR: dict[int, tuple[float, float, float]] = {
-    0: (1.0, 0.2, 0.2),
-    1: (0.2, 1.0, 0.2),
-    2: (0.2, 0.4, 1.0),
-}
-
-# Documented "selectable but unpainted" trick: the GPU still writes the
-# selection buffer at this alpha so clicks register, but no visible
-# pixels are produced.
-FACE_QUAD_ALPHA: float = 0.001
-
-# Very faint hover tint — just enough to confirm "you're aiming at this
-# face" without painting visibly over geometry behind it.
-FACE_QUAD_ALPHA_HIGHLIGHT: float = 0.04
-
-# Setup-time default for ``select_bias``; the layout helper overwrites
-# it per frame to the front-facing or halo value below. Kept below the
-# canonical arrow bias so a bailed frame can't let a front quad steal
-# clicks meant for a hidden control.
-FACE_QUAD_SELECT_BIAS: float = 0.5
-
-
-# ---------------------------------------------------------------------------
-# Internal constants
-# ---------------------------------------------------------------------------
-
-# Unit quad in the local XY plane spanning [-0.5, 0.5]^2 at z=0. Two
-# CCW triangles viewed from +Z. matrix_basis stretches it onto the
-# face's perpendicular extents.
-_QUAD_TRIS: list[tuple[float, float, float]] = [
-    (-0.5, -0.5, 0.0),
-    (0.5, -0.5, 0.0),
-    (0.5, 0.5, 0.0),
-    (-0.5, -0.5, 0.0),
-    (0.5, 0.5, 0.0),
-    (-0.5, 0.5, 0.0),
-]
-
-# Unit-quad outline as 4 line segments in the local XY plane at z=0.
-_QUAD_OUTLINE_LINES: list[tuple[float, float, float]] = [
-    (-0.5, -0.5, 0.0),
-    (0.5, -0.5, 0.0),
-    (0.5, -0.5, 0.0),
-    (0.5, 0.5, 0.0),
-    (0.5, 0.5, 0.0),
-    (-0.5, 0.5, 0.0),
-    (-0.5, 0.5, 0.0),
-    (-0.5, -0.5, 0.0),
-]
-
-# Degenerate zero-area triangle for hidden back-facing quads with no
-# visible-adjacent neighbours (rare orientation). Blender tolerates
-# this; the gizmo is hidden anyway so nothing renders.
-_EMPTY_TRIS: list[tuple[float, float, float]] = [
-    (0.0, 0.0, 0.0),
-    (0.0, 0.0, 0.0),
-    (0.0, 0.0, 0.0),
-]
-
-# Rotates the gizmo's local +Z onto the outward face normal in the
-# box's local frame. Right-hand rotation around the named axis.
-_AXIS_ORIENT: dict[tuple[int, bool], Matrix] = {
-    (0, False): Matrix.Rotation(-math.pi / 2, 4, "Y"),
-    (0, True): Matrix.Rotation(math.pi / 2, 4, "Y"),
-    (1, False): Matrix.Rotation(math.pi / 2, 4, "X"),
-    (1, True): Matrix.Rotation(-math.pi / 2, 4, "X"),
-    (2, False): Matrix.Rotation(math.pi, 4, "X"),
-    (2, True): Matrix.Identity(4),
-}
-
-# Per-face mapping from face-quad local axes to local box axes for the
-# perpendicular-extent scale. ``(w_axis, h_axis)`` — the box-local axis
-# indices the quad's local X and Y span after the orientation rotation.
-_QUAD_PERP_AXES: dict[tuple[int, bool], tuple[int, int]] = {
-    (0, False): (2, 1),
-    (0, True): (2, 1),
-    (1, False): (0, 2),
-    (1, True): (0, 2),
-    (2, False): (0, 1),
-    (2, True): (0, 1),
-}
-
-# Front-facing quad sits ABOVE the halo strips so the cursor on the
-# visible face area always grabs the visible face, never accidentally
-# routes to a back-face halo strip in an adjacent screen region.
-_FACE_QUAD_FRONT_FACING_SELECT_BIAS: float = 1.5
-_FACE_QUAD_HALO_FRAME_SELECT_BIAS: float = 1.0
-
-# Target halo-strip thickness in screen pixels. The world-space margin
-# is recomputed per frame so the rim stays a roughly constant on-screen
-# size regardless of viewport zoom.
-_FACE_QUAD_HALO_TARGET_PIXELS: float = 20.0
-
-# Minimum world half-extent a face resize may shrink to. Stops a drag
-# from collapsing the host to zero or negative scale.
-_MIN_HALF_EXTENT: float = 1e-4
-
-
-# ---------------------------------------------------------------------------
-# Pure predicates (testable without Blender)
-# ---------------------------------------------------------------------------
-
-Vec3 = tuple[float, float, float]
-
-
-def face_outward_axis_local(axis: int, is_max: bool) -> Vec3:
-    """Un-rotated outward face normal in the box's local AABB coords.
-
-    For ``(axis=0, is_max=True)`` returns ``(+1, 0, 0)``; for the −X
-    face ``(-1, 0, 0)``; etc. The rotated world normal is obtained by
-    applying the host's rotation and the OBB rotation:
-    ``mw_rot @ cage_rotation @ this``.
-    """
-    sign = 1.0 if is_max else -1.0
-    out = [0.0, 0.0, 0.0]
-    out[axis] = sign
-    return (out[0], out[1], out[2])
-
-
-def front_facing_face_mask(
-    face_normals_world: Sequence[Vec3],
-    view_dir_world: Vec3,
-    eps: float = 1e-6,
-) -> tuple[bool, ...]:
-    """Which of the 6 box faces point toward the camera.
-
-    A face is front-facing iff its outward normal points AGAINST the
-    view direction (``dot(normal, view_dir) < -eps``). The ``-eps``
-    margin prevents flicker at grazing angles.
-
-    ``face_normals_world`` must be in :data:`FACE_ROUTES` order; returns
-    a 6-tuple of bool parallel to that order.
-    """
-    if len(face_normals_world) != 6:
-        msg = f"expected 6 face normals, got {len(face_normals_world)}"
-        raise ValueError(msg)
-    vx, vy, vz = view_dir_world
-    return tuple((n[0] * vx + n[1] * vy + n[2] * vz) < -eps for n in face_normals_world)
-
-
-def view_axis_parallel_face_mask(
-    face_normals_world: Sequence[Vec3],
-    view_dir_world: Vec3,
-    threshold: float = 0.95,
-) -> tuple[bool, ...]:
-    """Which faces have normals (anti-)parallel to the view direction.
-
-    True iff ``abs(dot(normal, view_dir)) >= threshold`` — i.e. the
-    face is nearly perpendicular to the screen plane. Provided as a
-    pure predicate for callers that want to detect degenerate-drag
-    conditions; the layout helper itself no longer gates on it.
-    """
-    if len(face_normals_world) != 6:
-        msg = f"expected 6 face normals, got {len(face_normals_world)}"
-        raise ValueError(msg)
-    vx, vy, vz = view_dir_world
-    return tuple(abs(n[0] * vx + n[1] * vy + n[2] * vz) >= threshold for n in face_normals_world)
-
-
-# ---------------------------------------------------------------------------
-# Pure resize arithmetic
-# ---------------------------------------------------------------------------
-
-
-def compute_face_resize(
-    *,
-    value: float,
-    init_world_half: float,
-    init_location: tuple[float, float, float],
-    world_axis: tuple[float, float, float],
-    display_size: float,
-) -> tuple[float, tuple[float, float, float]]:
-    """Pure one-sided face-resize arithmetic.
-
-    Returns ``(new_scale_axis, new_location)`` — the host's new scale
-    on the dragged axis and its new world origin — such that the
-    dragged face moves by the modal's outward delta while the OPPOSITE
-    face stays put.
-
-    ``value`` is ``init + delta``, where ``init`` is the unsigned
-    drag-start world half-extent and ``delta`` is the cursor projection
-    onto the face's OUTWARD world normal. Realized half-extent is
-    clamped to a small floor; the location shift uses the realized
-    (post-clamp) delta so the opposite face stays fixed even at the
-    clamp.
-    """
-    face_delta = value - init_world_half
-    new_world_half = init_world_half + 0.5 * face_delta
-    if new_world_half < _MIN_HALF_EXTENT:
-        new_world_half = _MIN_HALF_EXTENT
-    realized_delta = 2.0 * (new_world_half - init_world_half)
-
-    ds = display_size if display_size != 0.0 else 1.0
-    new_scale_axis = new_world_half / ds
-    shift = 0.5 * realized_delta
-    new_location = (
-        init_location[0] + shift * world_axis[0],
-        init_location[1] + shift * world_axis[1],
-        init_location[2] + shift * world_axis[2],
-    )
-    return new_scale_axis, new_location
-
-
-# ---------------------------------------------------------------------------
-# Internal geometry helpers
-# ---------------------------------------------------------------------------
-
-
-def _compute_face_quad_scale(bmin: Any, bmax: Any, axis: int, is_max: bool) -> tuple[float, float]:
-    """Return ``(w, h)`` for the face quad's scale matrix."""
-    w_axis, h_axis = _QUAD_PERP_AXES[(axis, is_max)]
-    w = float(bmax[w_axis] - bmin[w_axis])
-    h = float(bmax[h_axis] - bmin[h_axis])
-    return w, h
-
-
-def _shared_edge_corner_keys(
-    axis_a: int, is_max_a: bool, axis_b: int, is_max_b: bool
-) -> tuple[tuple[int, int, int], tuple[int, int, int]] | None:
-    """Return the 2 corner-bit triples shared by two adjacent faces.
-
-    Corner keys are 3-tuples of bits (0 = bmin, 1 = bmax). The two
-    returned corners are ordered with the free-axis bit ascending.
-    """
-    if axis_a == axis_b:
-        return None
-    free_axis = 3 - axis_a - axis_b
-    bit_a = 1 if is_max_a else 0
-    bit_b = 1 if is_max_b else 0
-    corner_lo = [0, 0, 0]
-    corner_hi = [0, 0, 0]
-    corner_lo[axis_a] = bit_a
-    corner_hi[axis_a] = bit_a
-    corner_lo[axis_b] = bit_b
-    corner_hi[axis_b] = bit_b
-    corner_lo[free_axis] = 0
-    corner_hi[free_axis] = 1
-    return (
-        (corner_lo[0], corner_lo[1], corner_lo[2]),
-        (corner_hi[0], corner_hi[1], corner_hi[2]),
-    )
-
-
-def _face_corner_keys(axis: int, is_max: bool) -> tuple[
-    tuple[int, int, int],
-    tuple[int, int, int],
-    tuple[int, int, int],
-    tuple[int, int, int],
-]:
-    """Return the 4 corner-bit triples of a face in CCW order.
-
-    Triangulation as ``[(0,1,2), (0,2,3)]`` covers the whole face with
-    two non-overlapping triangles.
-    """
-    fixed_bit = 1 if is_max else 0
-    free_axes = [a for a in (0, 1, 2) if a != axis]
-    fa0, fa1 = free_axes
-    corners = []
-    for ka, kb in ((0, 0), (1, 0), (1, 1), (0, 1)):
-        key = [0, 0, 0]
-        key[axis] = fixed_bit
-        key[fa0] = ka
-        key[fa1] = kb
-        corners.append((key[0], key[1], key[2]))
-    return (corners[0], corners[1], corners[2], corners[3])
-
-
-def _build_strip_tris_relative(
-    edge_p0_local: tuple[float, float, float],
-    edge_p1_local: tuple[float, float, float],
-    extrusion_local: tuple[float, float, float],
-) -> list[tuple[float, float, float]]:
-    """Build two CCW triangles (6 vertices) for a thin halo strip.
-
-    All inputs are in coords relative to the gizmo's ``matrix_basis``
-    anchor. The strip runs along ``[edge_p0_local, edge_p1_local]`` and
-    extrudes by ``extrusion_local`` perpendicular to the edge.
-    """
-    p0x, p0y, p0z = edge_p0_local
-    p1x, p1y, p1z = edge_p1_local
-    ex, ey, ez = extrusion_local
-    p0e = (p0x + ex, p0y + ey, p0z + ez)
-    p1e = (p1x + ex, p1y + ey, p1z + ez)
-    return [
-        (p0x, p0y, p0z),
-        p0e,
-        p1e,
-        (p0x, p0y, p0z),
-        p1e,
-        (p1x, p1y, p1z),
-    ]
-
-
-def _strips_geometry_changed(quad_gz, face_quad_local, all_tris) -> bool:
-    """True if the back-face quad's geometry differs from the cached upload.
-
-    Pure orbit/pan doesn't change either the box pose or the cage
-    rotation, so the computed strip vertices are byte-identical to the
-    previous frame's. Hitting the cache lets the back-facing branch
-    skip ``new_custom_shape`` and the GPU upload.
-    """
-    cached = getattr(quad_gz, "_strips_cache_key", None)
-    last_state = getattr(quad_gz, "_last_geometry_state", None)
-    key = (face_quad_local, all_tris)
-    if cached is None or last_state != "strips" or cached != key:
-        quad_gz._strips_cache_key = key
-        quad_gz._last_geometry_state = "strips"
-        return True
-    return False
-
-
-def _compute_face_basis(
-    mw: Any,
-    mw_rot: Any,
-    cage_rotation: Any,
-    pivot_local: Any,
-    face_local: Any,
-    orient: Any,
-) -> tuple[Any, Any]:
-    """World-space (translation, outward-normal-direction) for one face."""
-    rotated_face_local = cage_rotation.to_3x3() @ (face_local - pivot_local) + pivot_local
-    face_world = mw @ rotated_face_local
-    world_axis = (mw_rot @ cage_rotation.to_3x3() @ (orient.to_3x3() @ Vector((0.0, 0.0, 1.0)))).normalized()
-    return face_world, world_axis
-
-
-def _compose_face_matrix_basis(
-    face_world: Any,
-    mw_rot_scale: Any,
-    cage_rotation: Any,
-    orient: Any,
-    w: float,
-    h: float,
-) -> Any:
-    """Compose the 5-term ``matrix_basis`` for a face-plane gizmo.
-
-    Returns ``Translation @ mw_rot_scale @ cage_rotation @ orient @
-    Diagonal((w, h, 1, 1))`` — maps a unit-square local quad onto the
-    world-space face rectangle, including the host's scale.
-    """
-    quad_scale = Matrix.Diagonal((w, h, 1.0, 1.0))
-    return Matrix.Translation(face_world) @ mw_rot_scale.to_4x4() @ cage_rotation @ orient @ quad_scale
-
-
-def _compute_box_corners_world(
-    bmin: Any,
-    bmax: Any,
-    pivot_local: Any,
-    cage_rotation_3x3: Any,
-    mw: Any,
-) -> dict[tuple[int, int, int], Any]:
-    """Return the 8 OBB corners in world space, keyed by bit-triple."""
-    corners: dict[tuple[int, int, int], Any] = {}
-    for ix in (0, 1):
-        for iy in (0, 1):
-            for iz in (0, 1):
-                local = Vector(
-                    (
-                        float(bmax.x if ix else bmin.x),
-                        float(bmax.y if iy else bmin.y),
-                        float(bmax.z if iz else bmin.z),
-                    )
-                )
-                rotated = cage_rotation_3x3 @ (local - pivot_local) + pivot_local
-                corners[(ix, iy, iz)] = mw @ rotated
-    return corners
-
-
-def _abs_scale_matrix(mw: Any) -> Any:
-    """Return a copy of ``mw`` with all scale components ``abs()``-ed.
-
-    Without this, a negative-scale host produces a visible/clickable
-    face inversion: ``mw @ local_vec`` flips the +axis face onto the
-    -axis world side, while the rotation-only normal stays pointing
-    in the +axis direction — so the gizmo for "the +X face" sits at
-    world -X but reports its outward normal as +X.
-    """
-    loc, rot, scale = mw.decompose()
-    abs_scale = Vector((abs(scale.x), abs(scale.y), abs(scale.z)))
-    return Matrix.LocRotScale(loc, rot, abs_scale)
-
-
-def _world_radius_to_screen_pixels(
-    region: Any,
-    rv3d: Any,
-    center_world: Vector,
-    world_radius: float,
-    *,
-    min_pixels: float = 0.0,
-) -> float:
-    """Return the on-screen pixel radius of a world-space circle.
-
-    Projects ``center_world`` and a sample point offset by
-    ``world_radius`` along the camera's view-aligned right axis to
-    region pixels, and returns the screen-pixel distance between them.
-    Falls back to ``min_pixels`` if either projection fails.
-    """
-    try:
-        view_inv = rv3d.view_matrix.inverted()
-        right = Vector((view_inv[0][0], view_inv[0][1], view_inv[0][2])).normalized()
-    except (AttributeError, ValueError):
-        right = Vector((1.0, 0.0, 0.0))
-    sample_world = center_world + right * world_radius
-    return _world_segment_to_screen_pixels(region, rv3d, center_world, sample_world, min_pixels=min_pixels)
-
-
-def _world_segment_to_screen_pixels(
-    region: Any,
-    rv3d: Any,
-    p0_world: Vector,
-    p1_world: Vector,
-    *,
-    min_pixels: float = 0.0,
-) -> float:
-    """Return the on-screen pixel length of an arbitrary world segment.
-
-    Unlike :func:`_world_radius_to_screen_pixels`, this measures the
-    ACTUAL projected length of the segment — foreshortening included.
-    Use this when the segment direction is known to be oblique to the
-    screen plane (e.g. a back face's outward normal): a perpendicular
-    radius measurement overestimates the on-screen length, leaving
-    halo strips visually narrower than the requested pixel target.
-    """
-    p0 = location_3d_to_region_2d(region, rv3d, p0_world)
-    p1 = location_3d_to_region_2d(region, rv3d, p1_world)
-    if not p0 or not p1:
-        return min_pixels
-    dx = float(p1[0]) - float(p0[0])
-    dy = float(p1[1]) - float(p0[1])
-    return max(min_pixels, (dx * dx + dy * dy) ** 0.5)
-
-
-# ---------------------------------------------------------------------------
-# Gizmo classes
-# ---------------------------------------------------------------------------
-
-
-class BIM_GT_box_face_quad(bpy.types.Gizmo):  # noqa: N801 — Blender bl_idname convention
-    """Near-invisible face-quad click target with drag-to-resize modal.
-
-    Geometry: a unit quad in the local XY plane at z=0. The adapter
-    group's layout helper rotates and scales it onto the face plane;
-    the quad is welded to the world face (``use_draw_scale = False``).
-    """
-
-    bl_idname = "BIM_GT_box_face_quad"
-    bl_target_properties = ({"id": "offset", "type": "FLOAT", "array_length": 1},)
-
-    __slots__ = (
-        "custom_shape",
-        "custom_shape_select",
-        "init_value",
-        "move_get_cb",
-        "move_set_cb",
-        "axis",
-        "start_location",
-        "depth_point",
-        "callback",
-        "ctrl_click_cb",
-        "_group",
-        "_face_axis",
-        "is_max",
-        "_drag_snapshot",
-        "_last_geometry_state",
-        "_strips_cache_key",
-    )
-
-    def draw(self, context: Any) -> None:
-        self.draw_custom_shape(self.custom_shape)
-
-    def draw_select(self, context: Any, select_id: int) -> None:
-        # Back-facing quads bind ``custom_shape_select`` to the halo-strip
-        # TRIS so clicks OUTSIDE the box silhouette catch the back face.
-        # Front-facing quads leave it None and reuse ``custom_shape``.
-        shape = getattr(self, "custom_shape_select", None) or self.custom_shape
-        self.draw_custom_shape(shape, select_id=select_id)
-
-    def setup(self) -> None:
-        if not hasattr(self, "custom_shape_"):
-            self.custom_shape = self.new_custom_shape("TRIS", _QUAD_TRIS)
-        self.custom_shape_select = None
-        # Quad welded to world geometry — clicks must align with the
-        # visible face, not a screen-size widget. Disables Blender's
-        # per-frame pixel-constant autoscale.
-        self.use_draw_scale = False
-
-    # ---- modal -------------------------------------------------------------
-
-    def invoke(self, context: Any, event: Any) -> set[str]:
-        # CTRL+click handoff: dispatch a host-defined callback (e.g.
-        # align-view) instead of starting a drag.
-        if event.ctrl and getattr(self, "ctrl_click_cb", None) is not None:
-            self.ctrl_click_cb(context, event)
-            return {"FINISHED"}
-
-        region = context.region
-        rv3d = context.region_data
-        if region is None or rv3d is None:
-            return {"CANCELLED"}
-        self.init_value = self.move_get_cb()
-        # Freeze the projection plane at invoke — projection-plane
-        # drift on tilted axes causes exponential delta runaway.
-        self.depth_point = self.matrix_basis.translation.copy()
-        self.start_location = region_2d_to_location_3d(region, rv3d, (event.mouse_x, event.mouse_y), self.depth_point)
-
-        if getattr(self, "_group", None) is not None:
-            self._group._lock_for(self)
-        return {"RUNNING_MODAL"}
-
-    def exit(self, context: Any, cancel: bool) -> None:
-        try:
-            if context.area:
-                context.area.header_text_set(None)
-            if cancel:
-                self.move_set_cb(self.init_value)
-            if hasattr(self, "callback"):
-                self.callback(self.move_get_cb())
-        finally:
-            self._drag_snapshot = None
-            if getattr(self, "_group", None) is not None:
-                self._group._unlock_all()
-
-    def modal(self, context: Any, event: Any, tweak: set[str]) -> set[str]:
-        if event.type == "ESC":
-            return {"CANCELLED"}
-        region = context.region
-        rv3d = context.region_data
-        if region is None or rv3d is None:
-            return {"CANCELLED"}
-        end_location = region_2d_to_location_3d(region, rv3d, (event.mouse_x, event.mouse_y), self.depth_point)
-        delta = (end_location - self.start_location).dot(self.axis)
-        if "SNAP" in tweak:
-            delta = round(delta, 1)
-        if "PRECISE" in tweak:
-            delta /= 10.0
-        self.move_set_cb(self.init_value + delta)
-        if context.area:
-            context.area.header_text_set(f"Value: {self.move_get_cb():.3f} ({delta:.3f})")
-        return {"RUNNING_MODAL"}
-
-
-class BIM_GT_box_face_outline(bpy.types.Gizmo):  # noqa: N801 — Blender bl_idname convention
-    """Thin non-interactive colored edge outline for one face.
-
-    Drawn as 4 line segments in the face plane. The layout helper
-    toggles its ``alpha`` between near-zero and ``1.0`` based on the
-    sibling face-quad's ``is_highlight`` state — so hovering the quad
-    lights up the matching outline. ``hide_select = True`` keeps the
-    outline out of the GPU selection buffer.
-    """
-
-    bl_idname = "BIM_GT_box_face_outline"
-    bl_target_properties = ()
-
-    __slots__ = (
-        "custom_shape",
-        "_face_axis",
-        "is_max",
-        "_last_outline_state",
-    )
-
-    def draw(self, context: Any) -> None:
-        self.draw_custom_shape(self.custom_shape)
-
-    def draw_select(self, context: Any, select_id: int) -> None:
-        return None
-
-    def setup(self) -> None:
-        if not hasattr(self, "custom_shape_"):
-            self.custom_shape = self.new_custom_shape("LINES", _QUAD_OUTLINE_LINES)
-        self.use_draw_scale = False
-        self.hide_select = True
-        self._last_outline_state = "unit"
-
-
-# ---------------------------------------------------------------------------
-# Per-redraw orchestrator
-# ---------------------------------------------------------------------------
-
-
-def apply_face_quad_layout(
-    *,
-    quad_gizmos,
-    outline_gizmos,
-    bmin: Any,
-    bmax: Any,
-    matrix_world: Any,
-    cage_rotation: Any,
-    region: Any,
-    rv3d: Any,
-    locked: bool,
-) -> None:
-    """Lay out 6 face quads + 6 outlines on the box for this redraw.
-
-    ``quad_gizmos`` / ``outline_gizmos`` are length-6 sequences in
-    :data:`FACE_ROUTES` order. ``bmin`` / ``bmax`` are the box corners
-    in the host's local frame; ``matrix_world`` is the host's world
-    matrix; ``cage_rotation`` is the OBB rotation as a 4x4 (use
-    ``Matrix.Identity(4)`` when rotation rides in ``matrix_world``).
-    ``region`` / ``rv3d`` drive the view-dependent front/back split and
-    the screen-constant halo margin; passing ``rv3d = None`` bails.
-
-    Negative scale on the host is normalized to positive internally so
-    the visible cube and the clickable face gizmos stay aligned —
-    callers don't need to pre-process ``matrix_world``.
-
-    When ``locked`` (a drag is active), ``hide`` / ``select_bias``
-    writes are skipped — the active quad's geometry is still refreshed
-    so it tracks the moving box.
-    """
-    if rv3d is None or getattr(rv3d, "view_rotation", None) is None:
-        return
-    if len(quad_gizmos) != 6 or len(outline_gizmos) != 6:
-        return
-
-    mw = _abs_scale_matrix(matrix_world)
-    mw_rot = mw.to_quaternion().to_matrix()
-    mw_rot_scale = mw.to_3x3()
-    cage_rotation_3x3 = cage_rotation.to_3x3()
-    pivot_local = (bmin + bmax) * 0.5
-    box_center_local = pivot_local
-    face_midpoints_local = {
-        (0, False): Vector((float(bmin.x), box_center_local.y, box_center_local.z)),
-        (0, True): Vector((float(bmax.x), box_center_local.y, box_center_local.z)),
-        (1, False): Vector((box_center_local.x, float(bmin.y), box_center_local.z)),
-        (1, True): Vector((box_center_local.x, float(bmax.y), box_center_local.z)),
-        (2, False): Vector((box_center_local.x, box_center_local.y, float(bmin.z))),
-        (2, True): Vector((box_center_local.x, box_center_local.y, float(bmax.z))),
-    }
-
-    view_dir = (rv3d.view_rotation @ Vector((0.0, 0.0, -1.0))).normalized()
-    view_dir_tuple = (float(view_dir.x), float(view_dir.y), float(view_dir.z))
-    face_normals_world = []
-    for route_axis, route_is_max in FACE_ROUTES:
-        axis_local = Vector(face_outward_axis_local(route_axis, route_is_max))
-        n_world = (mw_rot @ cage_rotation_3x3 @ axis_local).normalized()
-        face_normals_world.append((float(n_world.x), float(n_world.y), float(n_world.z)))
-    front = front_facing_face_mask(tuple(face_normals_world), view_dir_tuple)
-
-    box_center_world = mw @ pivot_local
-    corners_world = _compute_box_corners_world(bmin, bmax, pivot_local, cage_rotation_3x3, mw)
-    route_to_index = {route: i for i, route in enumerate(FACE_ROUTES)}
-
-    for i, route in enumerate(FACE_ROUTES):
-        quad_gz = quad_gizmos[i]
-        is_front = front[i]
-        axis_b, is_max_b = route
-
-        # Place the colored OUTLINE on every face using the same composed
-        # face matrix the front-facing solid quad uses. Hidden/shown via
-        # alpha at the end of the pass.
-        outline_orient = _AXIS_ORIENT[route]
-        outline_face_world, _outline_axis = _compute_face_basis(
-            mw,
-            mw_rot,
-            cage_rotation,
-            pivot_local,
-            face_midpoints_local[route],
-            outline_orient,
-        )
-        ow, oh = _compute_face_quad_scale(bmin, bmax, axis_b, is_max_b)
-        outline_gizmos[i].matrix_basis = _compose_face_matrix_basis(
-            outline_face_world, mw_rot_scale, cage_rotation, outline_orient, ow, oh
-        )
-
-        if is_front:
-            if not locked:
-                quad_gz.hide = False
-                quad_gz.select_bias = _FACE_QUAD_FRONT_FACING_SELECT_BIAS
-            orient = _AXIS_ORIENT[route]
-            face_world, world_axis = _compute_face_basis(
-                mw,
-                mw_rot,
-                cage_rotation,
-                pivot_local,
-                face_midpoints_local[route],
-                orient,
-            )
-            w, h = _compute_face_quad_scale(bmin, bmax, axis_b, is_max_b)
-            quad_gz.matrix_basis = _compose_face_matrix_basis(face_world, mw_rot_scale, cage_rotation, orient, w, h)
-            quad_gz.axis = world_axis
-            if getattr(quad_gz, "_last_geometry_state", None) != "solid":
-                quad_gz.custom_shape = quad_gz.new_custom_shape("TRIS", _QUAD_TRIS)
-                quad_gz.custom_shape_select = None
-                quad_gz._last_geometry_state = "solid"
-            continue
-
-        # Back-facing: anchor at the back face centre; build halo strips
-        # in the planes of the adjacent FRONT faces, extruded outside
-        # the silhouette toward this face's outward normal.
-        face_world = mw @ (cage_rotation_3x3 @ (face_midpoints_local[route] - pivot_local) + pivot_local)
-        quad_gz.matrix_basis = Matrix.Translation(face_world)
-        quad_gz.axis = (mw_rot @ cage_rotation_3x3 @ Vector(face_outward_axis_local(axis_b, is_max_b))).normalized()
-
-        adjacent_front_routes = [
-            (axis_a, is_max_a)
-            for axis_a in range(3)
-            if axis_a != axis_b
-            for is_max_a in (False, True)
-            if front[route_to_index[(axis_a, is_max_a)]]
-        ]
-        # Per-face world margin: measure the screen-projected length of
-        # ONE world unit along THIS face's outward normal. The world
-        # margin that yields ~N pixels on screen is then ``N / length``.
-        # Foreshortening on oblique faces shortens the projected step,
-        # so the world step must grow to keep the strip the same width
-        # on screen.
-        face_world_margin = 0.0
-        if region is not None:
-            sample_end = box_center_world + quad_gz.axis * 1.0
-            screen_step = _world_segment_to_screen_pixels(region, rv3d, box_center_world, sample_end, min_pixels=0.0)
-            if screen_step > 0.0:
-                face_world_margin = _FACE_QUAD_HALO_TARGET_PIXELS / screen_step
-        if face_world_margin <= 0.0 or not adjacent_front_routes:
-            if not locked:
-                quad_gz.hide = True
-                quad_gz.select_bias = _FACE_QUAD_HALO_FRAME_SELECT_BIAS
-            if getattr(quad_gz, "_last_geometry_state", None) != "empty":
-                quad_gz.custom_shape = quad_gz.new_custom_shape("TRIS", _EMPTY_TRIS)
-                quad_gz.custom_shape_select = None
-                quad_gz._last_geometry_state = "empty"
-            continue
-
-        extrusion_world = quad_gz.axis * face_world_margin
-        extrusion_local = (
-            float(extrusion_world.x),
-            float(extrusion_world.y),
-            float(extrusion_world.z),
-        )
-        all_tris: list[tuple[float, float, float]] = []
-        for axis_a, is_max_a in adjacent_front_routes:
-            edge_keys = _shared_edge_corner_keys(axis_a, is_max_a, axis_b, is_max_b)
-            if edge_keys is None:
-                continue
-            key0, key1 = edge_keys
-            wp0 = corners_world[key0]
-            wp1 = corners_world[key1]
-            local_p0 = (
-                float(wp0.x - face_world.x),
-                float(wp0.y - face_world.y),
-                float(wp0.z - face_world.z),
-            )
-            local_p1 = (
-                float(wp1.x - face_world.x),
-                float(wp1.y - face_world.y),
-                float(wp1.z - face_world.z),
-            )
-            all_tris.extend(_build_strip_tris_relative(local_p0, local_p1, extrusion_local))
-
-        if not locked:
-            quad_gz.hide = False
-            quad_gz.select_bias = _FACE_QUAD_HALO_FRAME_SELECT_BIAS
-
-        corner_keys = _face_corner_keys(axis_b, is_max_b)
-        wc_local = [
-            (
-                float(corners_world[k].x - face_world.x),
-                float(corners_world[k].y - face_world.y),
-                float(corners_world[k].z - face_world.z),
-            )
-            for k in corner_keys
-        ]
-        face_quad_local = [
-            wc_local[0],
-            wc_local[1],
-            wc_local[2],
-            wc_local[0],
-            wc_local[2],
-            wc_local[3],
-        ]
-        if _strips_geometry_changed(quad_gz, tuple(face_quad_local), tuple(all_tris)):
-            quad_gz.custom_shape = quad_gz.new_custom_shape("TRIS", face_quad_local)
-            quad_gz.custom_shape_select = quad_gz.new_custom_shape("TRIS", all_tris)
-        quad_gz._last_geometry_state = "strips"
-
-    # Outline alpha follows ONLY the hovered quad's own state — light
-    # the outline of the face under the cursor, nothing else.
-    if not locked:
-        for outline_gz, quad_gz in zip(outline_gizmos, quad_gizmos, strict=True):
-            lit = bool(getattr(quad_gz, "is_highlight", False))
-            outline_gz.alpha = 1.0 if lit else 0.0
-            outline_gz.alpha_highlight = 1.0 if lit else 0.0
-
-
-__all__ = [
-    "AXIS_COLOR",
-    "FACE_QUAD_ALPHA",
-    "FACE_QUAD_ALPHA_HIGHLIGHT",
-    "FACE_QUAD_SELECT_BIAS",
-    "FACE_ROUTES",
-    "BIM_GT_box_face_outline",
-    "BIM_GT_box_face_quad",
-    "apply_face_quad_layout",
-    "compute_face_resize",
-    "face_outward_axis_local",
-    "front_facing_face_mask",
-    "view_axis_parallel_face_mask",
-]
@@ -1,312 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026 Dion Moult <dion@thinkmoult.com>
-#
-# This file is part of Bonsai.
-#
-# Bonsai 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.
-#
-# Bonsai 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 Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-"""Interactive face-quad resize gizmos for the active clip box.
-
-Adapter group that binds the generic :mod:`face_quad` core to a Bonsai
-clip-box Empty: six near-invisible click quads + six edge outlines on
-the cube's faces. Dragging a face does a ONE-SIDED resize — the dragged
-face moves along its outward world normal while the opposite face stays
-put — by writing the empty's ``location`` and ``scale``. Bonsai's
-depsgraph handler then re-arms the clip planes from the new matrix.
-"""
-
-from __future__ import annotations
-
-import contextlib
-from typing import Any
-
-import bpy
-from mathutils import Matrix, Vector
-
-import bonsai.tool as tool
-
-from . import face_quad
-
-# Local-frame bounds of the empty's CUBE display. The display spans
-# ``[-empty_display_size, +empty_display_size]^3``; Bonsai always sets
-# ``empty_display_size = 1.0`` on clip-box hosts, so the local box is
-# the unit cube. The empty's per-axis scale + rotation + translation
-# ride in ``matrix_world``, which the layout helper applies.
-_LOCAL_BMIN = Vector((-1.0, -1.0, -1.0))
-_LOCAL_BMAX = Vector((1.0, 1.0, 1.0))
-
-
-def _world_axis(empty: bpy.types.Object, axis: int, is_max: bool) -> Vector:
-    """Outward world-space unit normal of the ``(axis, is_max)`` face.
-
-    Uses the rotation-only matrix so a negative-scale empty doesn't
-    flip the resulting direction — the visible "+X face" then stays
-    associated with world +X (transformed through rotation).
-    """
-    rot_mat = empty.matrix_world.to_quaternion().to_matrix()
-    n = Vector(rot_mat.col[axis])
-    if n.length <= 0.0:
-        return Vector((0.0, 0.0, 0.0))
-    n.normalize()
-    return n if is_max else -n
-
-
-def _world_half_extent(empty: bpy.types.Object, axis: int) -> float:
-    """The empty's box half-extent along local ``axis`` in WORLD units.
-
-    A CUBE empty's local cube is ``±empty_display_size``; ``matrix_world``
-    stretches it by the column length on ``axis``. So the world
-    half-extent is ``|column[axis]| * empty_display_size``.
-    """
-    col_len = empty.matrix_world.to_3x3().col[axis].length
-    display_size = abs(float(getattr(empty, "empty_display_size", 1.0) or 1.0))
-    return float(col_len) * display_size
-
-
-def _make_face_get_cb(gz: Any, group: Any, axis: int, is_max: bool):
-    """Closure returning the world half-extent at drag start and
-    snapshotting the empty's full transform on the gizmo instance.
-
-    The snapshot lives on the gizmo (not the group) so a PERSISTENT
-    group servicing multiple clip boxes can't bleed one drag's state
-    onto another. Cleared on ``exit`` by the shared face-quad hook.
-    """
-
-    def getter() -> float:
-        empty = group._empty
-        if empty is None:
-            return 0.0
-        existing = getattr(gz, "_drag_snapshot", None)
-        if existing is not None and existing.get("empty_name") == getattr(empty, "name", None):
-            return float(existing["world_half"])
-
-        world_half = _world_half_extent(empty, axis)
-        display_size = abs(float(getattr(empty, "empty_display_size", 1.0) or 1.0))
-        gz._drag_snapshot = {
-            "empty_name": getattr(empty, "name", None),
-            "world_half": world_half,
-            "location": tuple(float(v) for v in empty.location),
-            "scale": tuple(float(v) for v in empty.scale),
-            "display_size": display_size if display_size != 0.0 else 1.0,
-            "world_axis": tuple(_world_axis(empty, axis, is_max)),
-        }
-        return float(world_half)
-
-    return getter
-
-
-def _make_ctrl_click_cb(axis: int, is_max: bool):
-    """Closure that dispatches CTRL+click on a face to the align-view operator.
-
-    Routing through an operator (rather than mutating ``rv3d`` here)
-    keeps the action F3-searchable and undoable.
-    """
-
-    def _callback(_context: Any, _event: Any) -> None:
-        bpy.ops.bim.align_view_to_clip_face("INVOKE_DEFAULT", axis=axis, is_max=is_max)
-
-    return _callback
-
-
-def _make_face_set_cb(gz: Any, group: Any, axis: int, is_max: bool):
-    """Closure that applies a one-sided face resize by writing the
-    empty's ``location`` + ``scale``.
-
-    The modal calls this with ``value = init + delta`` where ``delta``
-    is the cursor's projection onto the face's OUTWARD world normal.
-    Both reads come from ``gz._drag_snapshot`` so every frame is
-    relative to drag start, never compounding.
-    """
-    del is_max  # snapshot's world_axis carries the direction
-
-    def setter(value: float) -> None:
-        empty = group._empty
-        if empty is None:
-            return
-        snap = getattr(gz, "_drag_snapshot", None)
-        if snap is None or snap.get("empty_name") != getattr(empty, "name", None):
-            return
-
-        new_scale_axis, new_location = face_quad.compute_face_resize(
-            value=value,
-            init_world_half=snap["world_half"],
-            init_location=snap["location"],
-            world_axis=snap["world_axis"],
-            display_size=snap["display_size"],
-        )
-        new_scale = list(snap["scale"])
-        # Preserve the sign of the original scale so a user-flipped empty
-        # stays flipped after the resize — compute_face_resize returns a
-        # positive magnitude, the sign is the user's intent to keep.
-        sign = -1.0 if snap["scale"][axis] < 0.0 else 1.0
-        new_scale[axis] = sign * new_scale_axis
-
-        empty.scale = new_scale
-        empty.location = Vector(new_location)
-
-    return setter
-
-
-class OBJECT_GGT_bim_clip_box(bpy.types.GizmoGroup):  # noqa: N801 — Blender bl_idname convention
-    """Face-quad resize handles on the active clip box.
-
-    Renders six near-invisible click-target quads and six colored edge
-    outlines on the active clip-box empty whenever clipping is enabled.
-    Click-and-drag a face to resize one-sided; the opposite face stays
-    put. CTRL+click and plain click fall through to selection.
-    """
-
-    bl_idname = "OBJECT_GGT_bim_clip_box"
-    bl_label = "Bonsai Clip Box Faces"
-    bl_space_type = "VIEW_3D"
-    bl_region_type = "WINDOW"
-    bl_options = {"3D", "PERSISTENT", "SHOW_MODAL_ALL"}
-
-    @classmethod
-    def poll(cls, context: Any) -> bool:
-        scene = getattr(context, "scene", None)
-        if scene is None:
-            return False
-        scene_props = tool.ClipBox.get_scene_props(scene)
-        if not scene_props.enabled or not scene_props.enable_gizmos:
-            return False
-        active_clip_box = tool.ClipBox.get_active_clip_box(scene)
-        if active_clip_box is None:
-            return False
-        # Only render when the user has the active clip box itself
-        # selected — otherwise the face handles would intercept clicks
-        # meant for the geometry behind them.
-        return getattr(context, "active_object", None) is active_clip_box
-
-    @classmethod
-    def setup_keymap(cls, keyconfig):
-        # Bind CLICK_DRAG so plain LEFTMOUSE PRESS passes through to
-        # selection — the user can still click through a near-invisible
-        # face quad to pick a mesh behind it.
-        km = keyconfig.keymaps.new(
-            name=cls.bl_idname,
-            space_type=cls.bl_space_type,
-            region_type=cls.bl_region_type,
-        )
-        km.keymap_items.new("gizmogroup.gizmo_tweak", type="LEFTMOUSE", value="CLICK_DRAG")
-        km.keymap_items.new("gizmogroup.gizmo_tweak", type="LEFTMOUSE", value="PRESS", ctrl=True)
-        return km
-
-    def setup(self, context: Any) -> None:
-        # ``_empty`` is resolved each refresh so the PERSISTENT group
-        # follows whichever clip box is active in the scene PG.
-        self._empty: bpy.types.Object | None = None
-        self._locked = False
-        self._face_routes: list[tuple[int, bool]] = []
-
-        for axis, is_max in face_quad.FACE_ROUTES:
-            gz = self.gizmos.new(face_quad.BIM_GT_box_face_quad.bl_idname)
-            gz._group = self
-            gz._face_axis = axis
-            gz.is_max = is_max
-            gz._drag_snapshot = None
-            gz._last_geometry_state = "solid"
-            gz._strips_cache_key = None
-            gz.color = face_quad.AXIS_COLOR[axis]
-            gz.color_highlight = tuple(min(1.0, c + 0.3) for c in face_quad.AXIS_COLOR[axis])
-            gz.alpha = face_quad.FACE_QUAD_ALPHA
-            gz.alpha_highlight = face_quad.FACE_QUAD_ALPHA_HIGHLIGHT
-            gz.use_draw_modal = True
-            gz.scale_basis = 1.0
-            gz.select_bias = face_quad.FACE_QUAD_SELECT_BIAS
-            gz.move_get_cb = _make_face_get_cb(gz, self, axis, is_max)
-            gz.move_set_cb = _make_face_set_cb(gz, self, axis, is_max)
-            # CTRL+click on a face aligns the viewport to look at it.
-            gz.ctrl_click_cb = _make_ctrl_click_cb(axis, is_max)
-            self._face_routes.append((axis, is_max))
-
-        # Outlines added last so they composite on top of the quad
-        # fills (Blender draws gizmos in creation order).
-        for axis, is_max in face_quad.FACE_ROUTES:
-            ol = self.gizmos.new(face_quad.BIM_GT_box_face_outline.bl_idname)
-            ol._face_axis = axis
-            ol.is_max = is_max
-            ol.color = face_quad.AXIS_COLOR[axis]
-            ol.color_highlight = face_quad.AXIS_COLOR[axis]
-            ol.alpha = 0.0
-            ol.alpha_highlight = 0.0
-            ol.line_width = 2.5
-
-    def _quad_gizmos(self):
-        return self.gizmos[: len(self._face_routes)]
-
-    def _outline_gizmos(self):
-        n = len(self._face_routes)
-        return self.gizmos[n : 2 * n]
-
-    def refresh(self, context: Any) -> None:
-        """State-change path: resolve the active empty, then run the
-        shared face-quad layout so the quads aren't stale for a frame
-        after a selection or active-index change."""
-        empty = tool.ClipBox.get_active_clip_box(context.scene)
-        self._empty = empty
-        if empty is None:
-            for gz in self.gizmos:
-                gz.hide = True
-            return
-        self._layout(context, empty)
-
-    def draw_prepare(self, context: Any) -> None:
-        """Per-redraw — fires on orbit — re-run the layout so the
-        front/back split, halo strips, and outline highlights track
-        the camera and any live G/R/S on the empty."""
-        empty = self._empty
-        if empty is None:
-            return
-        self._layout(context, empty)
-
-    def _layout(self, context: Any, empty: bpy.types.Object) -> None:
-        face_quad.apply_face_quad_layout(
-            quad_gizmos=self._quad_gizmos(),
-            outline_gizmos=self._outline_gizmos(),
-            bmin=_LOCAL_BMIN,
-            bmax=_LOCAL_BMAX,
-            matrix_world=empty.matrix_world,
-            # The empty's rotation rides in matrix_world, so the
-            # box-local OBB rotation is identity.
-            cage_rotation=Matrix.Identity(4),
-            region=getattr(context, "region", None),
-            rv3d=getattr(context, "region_data", None),
-            locked=self._locked,
-        )
-
-    # ---- mutual exclusion (lock siblings during a drag) ------------------
-
-    def _lock_for(self, active_gizmo) -> None:
-        self._locked = True
-        for gz in self.gizmos:
-            if gz is not active_gizmo:
-                with contextlib.suppress(ReferenceError, RuntimeError):
-                    gz.hide = True
-
-    def _unlock_all(self) -> None:
-        self._locked = False
-        for gz in self.gizmos:
-            with contextlib.suppress(ReferenceError, RuntimeError):
-                gz.hide = False
-        # Rebuild caps synchronously so the cross-section overlay
-        # re-forms the instant the user releases the handle, rather
-        # than waiting for the depsgraph's debounced rebuild path.
-        with contextlib.suppress(RuntimeError, ReferenceError):
-            tool.ClipBox.rebuild_caps_now()
-        # Push an undo step so the user can revert a face drag with Ctrl+Z.
-        with contextlib.suppress(RuntimeError):
-            bpy.ops.ed.undo_push(message="Resize Clip Box")
@@ -1,294 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026 Dion Moult <dion@thinkmoult.com>
-#
-# This file is part of Bonsai.
-#
-# Bonsai 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.
-#
-# Bonsai 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 Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-import bpy
-from mathutils import Matrix, Vector
-
-import bonsai.tool as tool
-from bonsai.bim.helper import prop_with_search
-
-from . import data
-
-# NOTE: do NOT add ``from __future__ import annotations`` to this module.
-# PEP 563 stringifies the operator's EnumProperty class annotations, which
-# breaks any introspection that reads ``cls.__annotations__[name].keywords``
-# — including the enum-search helper that draws the search-button icon.
-
-CLIP_BOX_NAME = "ClipBox"
-
-# Display labels for the source-based picker, used for the menu entries and
-# the dialog title. The dict keys are the canonical source-kind identifiers.
-SOURCE_KIND_LABELS: dict[str, str] = {
-    "SPATIAL": "Spatial Element",
-    "CLASS": "Class",
-    "TYPE": "Type",
-    "MATERIAL": "Material",
-    "PROFILE": "Profile",
-    "DRAWING": "Drawing",
-    "STATUS": "Status",
-    "SYSTEM": "System",
-    "GROUP": "Group",
-    "ZONE": "Zone",
-}
-
-
-_SOURCE_ID_DISPATCH = {
-    "SPATIAL": data.spatial_items,
-    "CLASS": data.class_items,
-    "TYPE": data.type_items,
-    "MATERIAL": data.material_items,
-    "PROFILE": data.profile_items,
-    "DRAWING": data.drawing_items,
-    "STATUS": data.status_items,
-    "SYSTEM": data.system_items,
-    "GROUP": data.group_items,
-    "ZONE": data.zone_items,
-}
-
-
-def _source_id_items(self, context):
-    """Dispatch the ``source_id`` enum items based on the picked ``source_kind``."""
-    fn = _SOURCE_ID_DISPATCH.get(self.source_kind)
-    if fn is None:
-        return [(data.NO_OPTIONS_ID, "No options", "")]
-    return fn(self, context)
-
-
-def _source_display_name(kind, source_id):
-    """Human-readable name of the picked source, used in the clip-box name."""
-    if kind == "STATUS":
-        return next((label for value, label in data.STATUS_LABELS if value == source_id), source_id)
-    if kind == "CLASS":
-        # source_id IS the human-readable IFC class name.
-        return source_id
-    ifc = tool.Ifc.get()
-    if ifc is None:
-        return source_id
-    try:
-        entity = ifc.by_id(int(source_id))
-    except (TypeError, ValueError, RuntimeError):
-        return source_id
-    return (getattr(entity, "Name", None) or "Unnamed").strip() or "Unnamed"
-
-
-class BIM_OT_align_view_to_clip_face(bpy.types.Operator):
-    bl_idname = "bim.align_view_to_clip_face"
-    bl_label = "Align View to Clip Box Face"
-    bl_description = "Orient the 3D viewport to look directly at the picked clip-box face"
-    bl_options = {"REGISTER"}
-
-    axis: bpy.props.IntProperty(default=0, options={"SKIP_SAVE"})
-    is_max: bpy.props.BoolProperty(default=True, options={"SKIP_SAVE"})
-
-    def execute(self, context):
-        rv3d = getattr(context, "region_data", None)
-        if rv3d is None:
-            return {"CANCELLED"}
-        clip_box = tool.ClipBox.get_active_clip_box(context.scene)
-        if clip_box is None:
-            return {"CANCELLED"}
-        rot_mat = clip_box.matrix_world.to_quaternion().to_matrix()
-        outward_local = Vector((0.0, 0.0, 0.0))
-        outward_local[self.axis] = 1.0 if self.is_max else -1.0
-        outward = (rot_mat @ outward_local).normalized()
-        if outward.length == 0.0:
-            return {"CANCELLED"}
-        up_world = (rot_mat @ _local_up_for_face(self.axis, self.is_max)).normalized()
-        rv3d.view_rotation = _view_rotation_from_forward_and_up(-outward, up_world)
-        return {"FINISHED"}
-
-
-def _local_up_for_face(axis: int, is_max: bool) -> Vector:
-    """Box-local up direction for a face, following Blender numpad conventions.
-
-    Side faces (local ±X / ±Y normal) → local +Z is up. Top face (local +Z
-    normal) → local +Y is up; bottom face (local -Z normal) → local -Y is
-    up. The caller rotates this through the empty's matrix so the
-    resulting world up axis tracks the box's orientation.
-    """
-    if axis == 2:
-        return Vector((0.0, 1.0, 0.0)) if is_max else Vector((0.0, -1.0, 0.0))
-    return Vector((0.0, 0.0, 1.0))
-
-
-def _view_rotation_from_forward_and_up(forward: Vector, up_hint: Vector) -> "bpy.types.Quaternion":
-    """Build a camera ``view_rotation`` that looks along ``forward`` with
-    ``up_hint`` projected to the camera's local +Y."""
-    back = -forward.normalized()
-    right = up_hint.cross(back)
-    if right.length < 1e-6:
-        right = Vector((1.0, 0.0, 0.0))
-    right.normalize()
-    up = back.cross(right).normalized()
-    return Matrix(
-        (
-            (right.x, up.x, back.x),
-            (right.y, up.y, back.y),
-            (right.z, up.z, back.z),
-        )
-    ).to_quaternion()
-
-
-class BIM_OT_add_clip_box(bpy.types.Operator):
-    bl_idname = "bim.add_clip_box"
-    bl_label = "Add Clip Box"
-    bl_description = (
-        "Create a clip box empty at the 3D cursor. The empty's location, rotation, and scale "
-        "drive the viewport clip planes; resize with S, move with G, rotate with R"
-    )
-    bl_options = {"REGISTER", "UNDO"}
-
-    def execute(self, context):
-        # Default to a 20m cube (scale 10 around [-1, +1] local cube) so
-        # the volume covers a typical building storey or two rather than
-        # the meaningless 2m unit cube. The user resizes with S.
-        matrix = Matrix.Translation(context.scene.cursor.location.copy()) @ Matrix.Diagonal((10.0, 10.0, 10.0, 1.0))
-        tool.ClipBox.create_clip_box_empty(context, matrix, name=CLIP_BOX_NAME)
-        return {"FINISHED"}
-
-
-class BIM_OT_add_clip_box_for_source(bpy.types.Operator):
-    bl_idname = "bim.add_clip_box_for_source"
-    bl_label = "Add Clip Box From Source"
-    bl_description = (
-        "Create a clip box sized to a chosen source: a spatial container, IFC type, material, "
-        "profile, drawing camera frustum, element status, system, group, or zone"
-    )
-    bl_options = {"REGISTER", "UNDO"}
-
-    source_kind: bpy.props.EnumProperty(
-        name="Source Kind",
-        items=[(kind, label, "") for kind, label in SOURCE_KIND_LABELS.items()],
-        default="SPATIAL",
-        options={"SKIP_SAVE"},
-    )
-    source_id: bpy.props.EnumProperty(
-        name="Source",
-        items=_source_id_items,
-        options={"SKIP_SAVE"},
-    )
-
-    def invoke(self, context, event):
-        return context.window_manager.invoke_props_dialog(self)
-
-    def draw(self, context):
-        layout = self.layout
-        label = f"Clip {SOURCE_KIND_LABELS.get(self.source_kind, 'Source')}"
-        # Search button appears once the enum exceeds the helper's threshold,
-        # giving the user a popup picker instead of a plain dropdown.
-        prop_with_search(layout, self, "source_id", text=label)
-
-    def execute(self, context):
-        if not self.source_id or self.source_id == data.NO_OPTIONS_ID:
-            self.report({"ERROR"}, "No source selected.")
-            return {"CANCELLED"}
-        matrix = tool.ClipBox.compute_matrix_for_source(self.source_kind, self.source_id)
-        if matrix is None:
-            kind_label = SOURCE_KIND_LABELS.get(self.source_kind, self.source_kind)
-            self.report(
-                {"ERROR"},
-                f"No elements found for {kind_label} '{_source_display_name(self.source_kind, self.source_id)}'.",
-            )
-            return {"CANCELLED"}
-        name = f"ClipBox.{SOURCE_KIND_LABELS.get(self.source_kind, self.source_kind)}.{_source_display_name(self.source_kind, self.source_id)}"
-        tool.ClipBox.create_clip_box_empty(context, matrix, name=name)
-        return {"FINISHED"}
-
-
-class BIM_OT_remove_clip_box(bpy.types.Operator):
-    bl_idname = "bim.remove_clip_box"
-    bl_label = "Remove Clip Box"
-    bl_description = "Remove this clip box and its host empty"
-    bl_options = {"REGISTER", "UNDO"}
-
-    index: bpy.props.IntProperty(default=-1, options={"SKIP_SAVE"})
-    delete_object: bpy.props.BoolProperty(default=True, name="Delete Host Object")
-
-    def execute(self, context):
-        scene_props = tool.ClipBox.get_scene_props(context.scene)
-        index = self.index if self.index >= 0 else scene_props.active_clip_box_index
-        if index < 0 or index >= len(scene_props.clip_boxes):
-            return {"CANCELLED"}
-
-        entry = scene_props.clip_boxes[index]
-        obj = entry.obj
-        scene_props.clip_boxes.remove(index)
-        if scene_props.active_clip_box_index >= len(scene_props.clip_boxes):
-            scene_props.active_clip_box_index = max(0, len(scene_props.clip_boxes) - 1)
-
-        if self.delete_object and obj is not None:
-            bpy.data.objects.remove(obj, do_unlink=True)
-
-        tool.ClipBox.refresh(context.scene)
-        tool.ClipBox.save_to_project_pset(context.scene)
-        return {"FINISHED"}
-
-
-class BIM_OT_set_active_clip_box(bpy.types.Operator):
-    bl_idname = "bim.set_active_clip_box"
-    bl_label = "Set Active Clip Box"
-    bl_description = "Set this clip box as the active one driving the viewport clip"
-    bl_options = {"REGISTER", "UNDO"}
-
-    index: bpy.props.IntProperty(default=-1, options={"SKIP_SAVE"})
-
-    def execute(self, context):
-        scene_props = tool.ClipBox.get_scene_props(context.scene)
-        if self.index < 0 or self.index >= len(scene_props.clip_boxes):
-            return {"CANCELLED"}
-        scene_props.active_clip_box_index = self.index
-        return {"FINISHED"}
-
-
-class BIM_OT_toggle_clip_box_enabled(bpy.types.Operator):
-    bl_idname = "bim.toggle_clip_box_enabled"
-    bl_label = "Toggle Clip Box"
-    bl_description = "Toggle whether the active clip box is driving the viewport clip planes"
-    bl_options = {"REGISTER", "UNDO"}
-
-    def execute(self, context):
-        scene_props = tool.ClipBox.get_scene_props(context.scene)
-        scene_props.enabled = not scene_props.enabled
-        return {"FINISHED"}
-
-
-class BIM_OT_duplicate_clip_box(bpy.types.Operator):
-    bl_idname = "bim.duplicate_clip_box"
-    bl_label = "Duplicate Clip Box"
-    bl_description = "Duplicate this clip box: copy its empty + matrix into a new entry"
-    bl_options = {"REGISTER", "UNDO"}
-
-    index: bpy.props.IntProperty(default=-1, options={"SKIP_SAVE"})
-
-    def execute(self, context):
-        scene_props = tool.ClipBox.get_scene_props(context.scene)
-        source_index = self.index if self.index >= 0 else scene_props.active_clip_box_index
-        if source_index < 0 or source_index >= len(scene_props.clip_boxes):
-            return {"CANCELLED"}
-        source = scene_props.clip_boxes[source_index].obj
-        if source is None:
-            return {"CANCELLED"}
-
-        copy = tool.ClipBox.create_clip_box_empty(context, source.matrix_world.copy(), name=source.name)
-        # Preserve the source's display attrs so the duplicate matches.
-        copy.empty_display_type = source.empty_display_type
-        copy.empty_display_size = source.empty_display_size
-        copy.show_in_front = source.show_in_front
-        return {"FINISHED"}
@@ -1,165 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026 Dion Moult <dion@thinkmoult.com>
-#
-# This file is part of Bonsai.
-#
-# Bonsai 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.
-#
-# Bonsai 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 Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-from __future__ import annotations
-
-from typing import TYPE_CHECKING
-
-import bpy
-from bpy.types import PropertyGroup
-
-import bonsai.tool as tool
-from bonsai.bim.prop import ObjProperty
-
-
-class BIMClipBoxProperties(PropertyGroup):
-    """Per-object marker for a clip-box host empty.
-
-    The host empty's ``matrix_world`` is the single source of truth for
-    the clip box's pose and dimensions: translation = box centre,
-    rotation = box orientation, per-axis scale = world half-extents. The
-    visible cube comes from the empty's CUBE display.
-
-    Only ``is_clip_box`` lives here; visibility (``enabled``) and overlay
-    (``show_caps``) are global per-file and live on the Scene PG.
-    """
-
-    is_clip_box: bpy.props.BoolProperty(
-        default=False,
-        description="True when this empty was created as a clip-box host. Internal flag; not user-edited.",
-    )
-
-    if TYPE_CHECKING:
-        is_clip_box: bool
-
-
-def update_active_clip_box_index(self, context):
-    tool.ClipBox.schedule_refresh()
-    tool.ClipBox.select_active_clip_box(context)
-    # Rebuild caps for the new active box's clip volume.
-    tool.ClipBox.invalidate_cap_cache(immediate=True)
-
-
-def update_show_caps(self, context):
-    tool.ClipBox.schedule_refresh()
-    # Off → on must trigger a rebuild so caps reappear immediately rather
-    # than wait for the next depsgraph tick. The rebuild is a no-op when
-    # show_caps is now False (it clears and returns), so this is safe in
-    # both directions.
-    tool.ClipBox.invalidate_cap_cache()
-
-
-def update_enabled(self, context):
-    tool.ClipBox.schedule_refresh()
-
-
-def update_clip_only_ifc_products(self, context):
-    # The eligibility set for capping changed — drop the cache and let the
-    # debounced rebuild pick up the new objects on the next idle tick.
-    tool.ClipBox.invalidate_cap_cache()
-
-
-def update_include_linked_ifc(self, context):
-    tool.ClipBox.invalidate_cap_cache()
-
-
-class BIMSceneClipBoxProperties(PropertyGroup):
-    """Scene-level registry of clip boxes in this file.
-
-    Multiple boxes may exist; ``active_clip_box_index`` selects which one
-    drives the viewport clip at any time. ``enabled`` and ``show_caps``
-    are global because the user's intent ("hide everything outside the
-    box", "draw cap overlays") applies file-wide, not per box.
-
-    ``enabled`` is intentionally not persisted to the project pset:
-    opening a fresh IFC should never silently hide geometry behind a
-    remembered toggle. Selecting any clip-box empty in the viewport
-    re-arms it (see :meth:`tool.ClipBox._sync_active_to_selection`).
-    """
-
-    clip_boxes: bpy.props.CollectionProperty(type=ObjProperty)
-    active_clip_box_index: bpy.props.IntProperty(
-        default=0,
-        min=0,
-        update=update_active_clip_box_index,
-        description="Index of the clip box currently driving the viewport clip planes",
-    )
-    enabled: bpy.props.BoolProperty(
-        name="Enabled",
-        default=False,
-        update=update_enabled,
-        description="When enabled, the active clip box hides all viewport geometry outside its 6 faces",
-    )
-    show_caps: bpy.props.BoolProperty(
-        name="Show Caps",
-        default=True,
-        update=update_show_caps,
-        description=(
-            "Draw filled cross-section caps where IFC product geometry "
-            "crosses the active clip planes. Disable for performance on "
-            "very heavy scenes"
-        ),
-    )
-    # Stored on the Scene PG so Blender persists it in the .blend; deliberately
-    # NOT written to the project pset so the IFC stays portable across users
-    # who may have different Blender-side reference geometry to clip.
-    clip_only_ifc_products: bpy.props.BoolProperty(
-        name="Only IFC Products",
-        default=True,
-        update=update_clip_only_ifc_products,
-        description=(
-            "When enabled, only IFC element geometry gets cross-section caps. "
-            "Disable to also cap Blender-side reference meshes (sketches, "
-            "imported obj, primitive cubes, …)"
-        ),
-    )
-    # Opt-in inclusion of geometry sitting inside loaded Project › Links
-    # collection-instance empties. Off by default — linked IFCs commonly
-    # carry the entire site / structural / MEP context, and bisecting
-    # them on every clip-box edit can be expensive.
-    include_linked_ifc: bpy.props.BoolProperty(
-        name="Include Linked IFC",
-        default=False,
-        update=update_include_linked_ifc,
-        description=(
-            "Also generate cross-section caps for geometry inside linked "
-            "IFC files (Project ▸ Links). Off by default — linked IFCs may "
-            "carry the entire site / structural backbone, and capping them "
-            "adds per-mesh bisect cost on every clip-box edit"
-        ),
-    )
-    # Also Scene-only — gizmo visibility is a per-user editing preference,
-    # not a portable IFC property.
-    enable_gizmos: bpy.props.BoolProperty(
-        name="Show Face Handles",
-        default=True,
-        description=(
-            "Show interactive face-resize handles on the active clip box. "
-            "Disable to fall back to plain G/R/S transforms on the empty"
-        ),
-    )
-
-    if TYPE_CHECKING:
-        active_clip_box_index: int
-        enabled: bool
-        show_caps: bool
-        clip_only_ifc_products: bool
-        include_linked_ifc: bool
-        enable_gizmos: bool
@@ -1,145 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026 Dion Moult <dion@thinkmoult.com>
-#
-# This file is part of Bonsai.
-#
-# Bonsai 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.
-#
-# Bonsai 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 Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-from __future__ import annotations
-
-from bpy.types import Menu, Panel, UIList
-
-import bonsai.tool as tool
-
-# Per-kind icon for the source-picker menu. Picked from Blender's built-in
-# icon set; semantically close to the kind so users can scan the menu visually.
-_SOURCE_MENU_ENTRIES: tuple[tuple[str, str, str], ...] = (
-    ("SPATIAL", "Clip Spatial Element", "OUTLINER_COLLECTION"),
-    ("CLASS", "Clip by Class", "BLANK1"),
-    ("TYPE", "Clip Type", "FILE_3D"),
-    ("MATERIAL", "Clip Material", "MATERIAL"),
-    ("PROFILE", "Clip Profile", "MESH_CIRCLE"),
-    ("DRAWING", "Clip Drawing Extents", "CAMERA_DATA"),
-    ("STATUS", "Clip by Status", "INFO"),
-    ("SYSTEM", "Clip by System", "MOD_FLUID"),
-    ("GROUP", "Clip by Group", "OUTLINER_OB_GROUP_INSTANCE"),
-    ("ZONE", "Clip by Zone", "MOD_LATTICE"),
-)
-
-
-class BIM_MT_clip_box_add_for_source(Menu):
-    bl_idname = "BIM_MT_clip_box_add_for_source"
-    bl_label = "Add Clip Box From Source"
-
-    def draw(self, context):
-        layout = self.layout
-        for kind, label, icon in _SOURCE_MENU_ENTRIES:
-            op = layout.operator("bim.add_clip_box_for_source", text=label, icon=icon)
-            op.source_kind = kind
-
-
-class BIM_MT_clip_box_settings(Menu):
-    bl_idname = "BIM_MT_clip_box_settings"
-    bl_label = "Clip Box Settings"
-
-    def draw(self, context):
-        scene_props = tool.ClipBox.get_scene_props(context.scene)
-        self.layout.prop(scene_props, "clip_only_ifc_products")
-        self.layout.prop(scene_props, "include_linked_ifc")
-        self.layout.prop(scene_props, "enable_gizmos")
-
-
-class BIM_MT_clip_box_info(Menu):
-    bl_idname = "BIM_MT_clip_box_info"
-    bl_label = "Clip Box Face Handles"
-
-    def draw(self, context):
-        layout = self.layout
-        layout.label(text="Face Handles", icon="INFO")
-        layout.separator()
-        layout.label(text="Drag a face to resize the clip box on that axis.")
-        layout.label(text="The opposite face stays fixed (one-sided resize).")
-        layout.label(text="Ctrl+Click a face to align the viewport to it.")
-        layout.separator()
-        layout.label(text="Toggle handles from the Settings (gear) menu.")
-
-
-class BIM_UL_clip_box(UIList):
-    def draw_item(self, context, layout, data, item, icon, active_data, active_propname, index, flt_flag):
-        obj = item.obj
-        row = layout.row(align=True)
-        if obj is None:
-            # Host empty was deleted from outliner; still expose the
-            # remove button so the orphan entry isn't permanent.
-            row.label(text="(missing)", icon="ERROR")
-            row.operator("bim.remove_clip_box", text="", icon="X", emboss=False).index = index
-            return
-        row.prop(obj, "name", text="", emboss=False, icon="MESH_CUBE")
-        row.operator("bim.duplicate_clip_box", text="", icon="DUPLICATE", emboss=False).index = index
-        row.operator("bim.remove_clip_box", text="", icon="X", emboss=False).index = index
-
-
-class BIM_PT_clip_box(Panel):
-    bl_idname = "BIM_PT_clip_box"
-    bl_label = "Clip Box"
-    bl_space_type = "PROPERTIES"
-    bl_region_type = "WINDOW"
-    bl_context = "scene"
-    bl_options = {"DEFAULT_CLOSED"}
-    bl_parent_id = "BIM_PT_tab_sandbox"
-
-    def draw(self, context):
-        layout = self.layout
-        scene_props = tool.ClipBox.get_scene_props(context.scene)
-
-        toggles = layout.row(align=True)
-        toggles.scale_y = 2.0
-        toggles.prop(
-            scene_props,
-            "enabled",
-            text="Enable Clipping",
-            icon="HIDE_OFF" if scene_props.enabled else "HIDE_ON",
-            toggle=True,
-        )
-        toggles.prop(scene_props, "show_caps", text="Show Caps", icon="MOD_SOLIDIFY", toggle=True)
-        toggles.menu("BIM_MT_clip_box_settings", icon="PREFERENCES", text="")
-        toggles.menu("BIM_MT_clip_box_info", icon="INFO", text="")
-
-        layout.separator()
-        row = layout.row(align=True)
-        row.operator("bim.add_clip_box", icon="ADD", text="Add Clip Box")
-        row.menu("BIM_MT_clip_box_add_for_source", icon="DOWNARROW_HLT", text="")
-
-        layout.template_list(
-            "BIM_UL_clip_box",
-            "",
-            scene_props,
-            "clip_boxes",
-            scene_props,
-            "active_clip_box_index",
-            rows=3,
-        )
-
-        obj = tool.ClipBox.get_active_clip_box(context.scene)
-        if obj is None:
-            layout.label(text="No active clip box", icon="INFO")
-            return
-
-        col = layout.column(align=True)
-        col.label(text="Edit the empty with G / R / S to move / rotate / resize")
-        col.prop(obj, "location")
-        col.prop(obj, "rotation_euler")
-        col.prop(obj, "scale")
@@ -87,7 +87,7 @@ class CopyCostSchedule(bpy.types.Operator, tool.Ifc.Operator):
    bl_label = "Copy Cost Schedule"
    bl_description = "Create a duplicate of the provided cost schedule."
    bl_options = {"REGISTER", "UNDO"}
-    cost_schedule: bpy.props.IntProperty()
+    cost_schedule: bpy.props.IntProperty()  # pyright: ignore[reportRedeclaration]

    if TYPE_CHECKING:
        cost_schedule: int
@@ -260,14 +260,14 @@ class CreateAllShapes(bpy.types.Operator):
    )
    bl_options = {"REGISTER"}

-    geometry_library: bpy.props.EnumProperty(
+    geometry_library: bpy.props.EnumProperty(  # pyright: ignore[reportRedeclaration]
        name="Geometry Library",
        description="Geometry library to use for testing shape creation.",
        items=[(i, i, "") for i in get_args(ifcopenshell.geom.GEOMETRY_LIBRARY)],
        # By default use the same library as used for importing ifc project.
        default="hybrid-cgal-simple-opencascade",
    )
-    custom_geometry_library: bpy.props.StringProperty(
+    custom_geometry_library: bpy.props.StringProperty(  # pyright: ignore[reportRedeclaration]
        name="Custom Geometry Library",
        description="Provide a custom geometry library name, will override the 'geometry library' property.",
    )
@@ -781,7 +781,7 @@ class PurgeUnusedObjects(bpy.types.Operator, tool.Ifc.Operator):
    bl_label = "Purge Unused Objects"
    bl_options = {"REGISTER", "UNDO"}

-    object_type: bpy.props.EnumProperty(
+    object_type: bpy.props.EnumProperty(  # pyright: ignore[reportRedeclaration]
        name="Object Type",
        items=((s, s.capitalize(), "") for s in get_args(tool.Debug.PurgeMergeObjectType)),
    )
@@ -827,7 +827,7 @@ class MergeIdenticalObjects(bpy.types.Operator, tool.Ifc.Operator):
    )
    bl_options = {"REGISTER", "UNDO"}

-    object_type: bpy.props.EnumProperty(
+    object_type: bpy.props.EnumProperty(  # pyright: ignore[reportRedeclaration]
        name="Object Type",
        items=((s, s.capitalize(), "") for s in get_args(tool.Debug.PurgeMergeObjectType)),
    )
@@ -1073,7 +1073,7 @@ class ChangeLogLevel(bpy.types.Operator):
    bl_options = {"REGISTER"}
    bl_description = "Change general log level across all Python code in Blender"

-    log_level: bpy.props.EnumProperty(
+    log_level: bpy.props.EnumProperty(  # pyright: ignore[reportRedeclaration]
        name="Log Level",
        items=[(i, i, "") for i in get_args(LogLevelType)],
        default="WARNING",
@@ -15,8 +15,6 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.

 import bpy

@@ -138,34 +136,14 @@ classes = (
    gizmos.GizmoArrow2D,
    gizmos.GizmoCone,
    gizmos.GizmoDimension,
-    gizmos.GizmoLockOpen,
-    gizmos.GizmoLockClosed,
+    gizmos.GizmoLock,
    gizmos.GizmoArc,
-    gizmos.GizmoLinkToggle,
-    gizmos.GizmoFillet,
-    gizmos.GizmoWallCornerIcon,
-    gizmos.GizmoWallTeeIcon,
    gizmos.GizmoPen,
    gizmos.GizmoValidate,
    gizmos.GizmoCancel,
    gizmos.GizmoPlus,
    gizmos.GizmoMinus,
-    gizmos.GizmoTrash,
-    gizmos.GizmoArrayParent,
-    gizmos.GizmoArrayAll,
-    gizmos.GizmoArrayLayerIndicator,
-    gizmos.GizmoCountLabel,
-    gizmos.GizmoMerge,
-    gizmos.GizmoSplit,
-    gizmos.GizmoUnjoin,
-    gizmos.GizmoExtend,
-    gizmos.GizmoExtendVertical,
-    gizmos.GizmoOffsetExterior,
-    gizmos.GizmoOffsetCenter,
-    gizmos.GizmoOffsetInterior,
-    gizmos.GizmoAddOpening,
    gizmos.GizmoCycle,
-    gizmos.GizmoMenu,
    # Drawing-specific gizmos
    gizmos.UglyDotGizmo,
    gizmos.ExtrusionGuidesGizmo,
@@ -50,9 +50,6 @@ def set_active_camera_resolution(scene: bpy.types.Scene) -> None:
    if camera.type != props.camera_type:
        camera.type = props.camera_type

-    if props.update_props and (drawing := tool.Ifc.get_entity(camera_obj)):
-        tool.Drawing.sync_perspective_camera_shifts(drawing, camera)
-
    ortho_scale, aspect_ratio = props.get_scale_and_aspect_ratio()
    scene_render = scene.render
    if (camera.ortho_scale != ortho_scale) or not tool.Cad.is_x(
@@ -313,7 +313,7 @@ def format_distance(
            if not feet and not add_inches:
                tx_dist += str(feet) + "'"

-            if not feet and add_inches and unit_length != "INCHES":
+            if not feet and add_inches:
                if value < 0:
                    tx_dist += "-0' - "
                else:
@@ -57,7 +57,7 @@ import shapely
 from bpy_extras.image_utils import load_image
 from bpy_extras.io_utils import ImportHelper
 from lxml import etree
-from mathutils import Color, Matrix, Vector
+from mathutils import Color, Vector

 import bonsai.bim.export_ifc
 import bonsai.bim.handler
@@ -246,17 +246,17 @@ class CreateDrawing(bpy.types.Operator):
        + "Add the CTRL modifier to optionally open drawings to view them as\n"
        + "they are created"
    )
-    print_all: bpy.props.BoolProperty(
+    print_all: bpy.props.BoolProperty(  # pyright: ignore[reportRedeclaration]
        name="Print All",
        default=False,
        options={"SKIP_SAVE"},
    )
-    open_viewer: bpy.props.BoolProperty(
+    open_viewer: bpy.props.BoolProperty(  # pyright: ignore[reportRedeclaration]
        name="Open in Viewer",
        default=False,
        options={"SKIP_SAVE"},
    )
-    sync: bpy.props.BoolProperty(
+    sync: bpy.props.BoolProperty(  # pyright: ignore[reportRedeclaration]
        name="Sync Before Creating Drawing",
        description="Could save some time if you're sure IFC and current Blender session are already in sync",
        default=True,
@@ -602,7 +602,6 @@ class CreateDrawing(bpy.types.Operator):
        context_type: Literal["body", "annotation"],
        drawing_elements: set[ifcopenshell.entity_instance],
        target_view: str,
-        link_matrix: Optional[Matrix] = None,
    ) -> None:
        drawing_elements = drawing_elements.copy()
        contexts_: list[list[int]] = getattr(contexts, context_type)
@@ -614,19 +613,9 @@ class CreateDrawing(bpy.types.Operator):
                geom_settings.set("dimensionality", ifcopenshell.ifcopenshell_wrapper.CURVES_SURFACES_AND_SOLIDS)
                geom_settings.set("iterator-output", ifcopenshell.ifcopenshell_wrapper.NATIVE)

-                is_plan = ifc.by_id(context[0]).ContextType == "Plan" and "PLAN_VIEW" in target_view
-                z_offset = (0.002 if target_view == "PLAN_VIEW" else -0.002) if is_plan else 0.0
-
-                if link_matrix is not None:
-                    unit_scale = ifcopenshell.util.unit.calculate_unit_scale(ifc)
-                    t = link_matrix.to_translation()
-                    offset = (t.x / unit_scale, t.y / unit_scale, t.z / unit_scale + z_offset)
-                    geom_settings.set("model-offset", offset)
-                    q = link_matrix.to_quaternion()
-                    geom_settings.set("model-rotation", (q.x, q.y, q.z, q.w))
-                elif z_offset:
+                if ifc.by_id(context[0]).ContextType == "Plan" and "PLAN_VIEW" in target_view:
                    # A 2mm Z offset to combat Z-fighting in plan or RCPs
-                    geom_settings.set("model-offset", (0.0, 0.0, z_offset))
+                    geom_settings.set("model-offset", (0.0, 0.0, 0.002 if target_view == "PLAN_VIEW" else -0.002))

                geom_settings.set("context-ids", context)
                it = ifcopenshell.geom.iterator(
@@ -934,16 +923,11 @@ class CreateDrawing(bpy.types.Operator):

        bim_props = tool.Blender.get_bim_props()
        prefs = tool.Blender.get_addon_preferences()
-        # Map ifc_path → (ifc_file, link_matrix); main file has no link_matrix (None)
-        files: dict[str, tuple[ifcopenshell.file, Optional[Matrix]]] = {bim_props.ifc_file: (tool.Ifc.get(), None)}
+        files = {bim_props.ifc_file: tool.Ifc.get()}

        props = tool.Project.get_project_props()
        for link in props.get_loaded_links_for_drawings():
-            try:
-                link_matrix = tool.Project.calculate_link_matrix(link)
-            except Exception:
-                link_matrix = None
-            files[link.filepath] = (self.get_linked_file(link), link_matrix)
+            files[link.filepath] = self.get_linked_file(link)

        target_view = ifcopenshell.util.element.get_psets(self.camera_element)["EPset_Drawing"]["TargetView"]
        self.setup_serialiser(target_view)
@@ -951,13 +935,7 @@ class CreateDrawing(bpy.types.Operator):
        tree = ifcopenshell.geom.tree()
        tree.enable_face_styles(True)

-        # Accumulated across every file in the loop below (main model plus any
-        # linked models) so the SHAPELY fill pass after the loop covers all of
-        # them, not just whichever file happened to be processed last.
-        raycast_objs = set()
-        elements_with_faces = set()
-
-        for ifc_path, (ifc, link_matrix) in files.items():
+        for ifc_path, ifc in files.items():
            # Don't use draw.main() just whilst we're prototyping and experimenting
            # TODO: hash paths are never used
            ifc_hash = hashlib.md5(ifc_path.encode("utf-8")).hexdigest()
@@ -966,24 +944,13 @@ class CreateDrawing(bpy.types.Operator):
            self.serialiser.setFile(ifc)
            drawing_elements = tool.Drawing.get_drawing_elements(self.camera_element, ifc_file=ifc)

-            if self.cprops.fill_mode == "SHAPELY":
-                for element in drawing_elements.copy():
-                    if element.is_a("IfcAnnotation"):
-                        continue
-                    obj = tool.Ifc.get_object(element)
-                    if obj and obj.type == "MESH" and len(obj.data.polygons):
-                        elements_with_faces.add(element.GlobalId)
-                        raycast_objs.add(obj)
-
            # Get all representation contexts to see what we're dealing with.
            # Drawings only draw bodies and annotations (and facetation, due to a Revit bug).
            # A drawing prioritises a target view context first, followed by a model view context as a fallback.
            # Specifically for PLAN_VIEW and REFLECTED_PLAN_VIEW, any Plan context is also prioritised.
            contexts = self.get_linework_contexts(ifc, target_view)
-            self.serialize_contexts_elements(ifc, tree, contexts, "body", drawing_elements, target_view, link_matrix)
-            self.serialize_contexts_elements(
-                ifc, tree, contexts, "annotation", drawing_elements, target_view, link_matrix
-            )
+            self.serialize_contexts_elements(ifc, tree, contexts, "body", drawing_elements, target_view)
+            self.serialize_contexts_elements(ifc, tree, contexts, "annotation", drawing_elements, target_view)

            if tool.Ifc.get() == ifc and self.camera_element not in drawing_elements:
                with profile("Camera element"):
@@ -1050,6 +1017,16 @@ class CreateDrawing(bpy.types.Operator):
            # shapely variant
            group = root.find("{http://www.w3.org/2000/svg}g")

+            raycast_objs = set()
+            elements_with_faces = set()
+            for element in drawing_elements.copy():
+                if element.is_a("IfcAnnotation"):
+                    continue
+                obj = tool.Ifc.get_object(element)
+                if obj and obj.type == "MESH" and len(obj.data.polygons):
+                    elements_with_faces.add(element.GlobalId)
+                    raycast_objs.add(obj)
+
            projections = root.xpath(
                ".//svg:g[contains(@class, 'projection')]", namespaces={"svg": "http://www.w3.org/2000/svg"}
            )
@@ -2342,51 +2319,29 @@ class ActivateDrawingBase(tool.Ifc.Operator):
    bl_description = (
        "Activates the selected drawing view.\n\n"
        + "ALT+CLICK to keep the viewport position.\n\n"
-        + "SHIFT+CLICK to load a quick preview of the drawing view.\n\n"
-        + "SHIFT+CTRL+CLICK to load the annotations of all selected drawings without switching views, "
-        + "then select their cameras (the first selected drawing's camera becomes active).\n\n"
-        + "SHIFT+CTRL+ALT+CLICK to do the same but also select the annotations, not just the cameras"
+        + "SHIFT+CLICK to load a quick preview of the drawing view"
    )

-    drawing: bpy.props.IntProperty()
-    should_view_from_camera: bpy.props.BoolProperty(
+    drawing: bpy.props.IntProperty()  # pyright: ignore[reportRedeclaration]
+    should_view_from_camera: bpy.props.BoolProperty(  # pyright: ignore[reportRedeclaration]
        name="Should View From Camera",
        description="Move view to the activated drawing's camera position.",
        default=True,
        options={"SKIP_SAVE"},
    )
-    use_quick_preview: bpy.props.BoolProperty(
+    use_quick_preview: bpy.props.BoolProperty(  # pyright: ignore[reportRedeclaration]
        name="Use Quick Preview",
        description="Just move the camera to the drawing view, without loading anything else.",
        default=False,
        options={"SKIP_SAVE"},
    )
-    load_selected_annotations: bpy.props.BoolProperty(
-        name="Load Selected Annotations",
-        description="Load the annotations of all selected drawings without switching the active view.",
-        default=False,
-        options={"SKIP_SAVE"},
-    )
-    include_annotations_in_selection: bpy.props.BoolProperty(
-        name="Include Annotations In Selection",
-        description="Also select the loaded annotation objects, not just the drawing cameras.",
-        default=False,
-        options={"SKIP_SAVE"},
-    )

    if TYPE_CHECKING:
        drawing: int
        should_view_from_camera: bool
        use_quick_preview: bool
-        load_selected_annotations: bool
-        include_annotations_in_selection: bool

    def invoke(self, context, event) -> set["rna_enums.OperatorReturnItems"]:
-        if event.type == "LEFTMOUSE" and event.shift and event.ctrl:
-            self.load_selected_annotations = True
-            if event.alt:
-                self.include_annotations_in_selection = True
-            return self.execute(context)
        if event.type == "LEFTMOUSE" and event.alt:
            self.should_view_from_camera = False
        if event.type == "LEFTMOUSE" and event.shift:
@@ -2399,37 +2354,6 @@ class ActivateDrawingBase(tool.Ifc.Operator):
        if props.is_editing_drawings == False:
            bpy.ops.bim.load_drawings()

-        if self.load_selected_annotations:
-            objs_to_select = []
-            active_camera = None
-            for d in props.drawings:
-                if not (d.is_drawing and d.is_selected):
-                    continue
-                selected_drawing = tool.Ifc.get().by_id(d.ifc_definition_id)
-                # Importing the camera (if missing) ensures the drawing's
-                # collection exists so the annotations get collected into it.
-                if not (camera := tool.Ifc.get_object(selected_drawing)):
-                    camera = tool.Drawing.import_drawing(selected_drawing)
-                group = tool.Drawing.get_drawing_group(selected_drawing)
-                tool.Drawing.import_annotations_in_group(group)
-
-                if active_camera is None:
-                    active_camera = camera
-                objs_to_select.append(camera)
-                if self.include_annotations_in_selection:
-                    for element in tool.Drawing.get_group_elements(group) or []:
-                        if element.is_a("IfcAnnotation") and element.ObjectType != "DRAWING":
-                            if annotation_obj := tool.Ifc.get_object(element):
-                                objs_to_select.append(annotation_obj)
-
-            # Select the checked drawings' objects, with the first drawing's camera as active.
-            bpy.ops.object.select_all(action="DESELECT")
-            for obj in objs_to_select:
-                obj.select_set(True)
-            if active_camera is not None:
-                context.view_layer.objects.active = active_camera
-            return {"FINISHED"}
-
        drawing = tool.Ifc.get().by_id(self.drawing)
        dprops = tool.Drawing.get_document_props()

@@ -2515,10 +2439,7 @@ class ActivateDrawing(bpy.types.Operator, ActivateDrawingBase):
    bl_description = (
        "Activates the selected drawing view.\n\n"
        + "ALT+CLICK to keep the viewport position.\n\n"
-        + "SHIFT+CLICK to load a quick preview of the drawing view.\n\n"
-        + "SHIFT+CTRL+CLICK to load the annotations of all selected drawings without switching views, "
-        + "then select their cameras (the first selected drawing's camera becomes active).\n\n"
-        + "SHIFT+CTRL+ALT+CLICK to do the same but also select the annotations, not just the cameras"
+        + "SHIFT+CLICK to load a quick preview of the drawing view"
    )


@@ -3714,12 +3635,14 @@ class ToggleTargetView(bpy.types.Operator):
    bl_label = "Toggle Target View"
    bl_options = {"REGISTER", "UNDO"}

-    target_view: bpy.props.StringProperty()
-    toggle_all: bpy.props.BoolProperty(
+    target_view: bpy.props.StringProperty()  # pyright: ignore[reportRedeclaration]
+    toggle_all: bpy.props.BoolProperty(  # pyright: ignore[reportRedeclaration]
        default=False,
        options={"SKIP_SAVE"},
    )
-    option: bpy.props.EnumProperty(items=[(i, i, "") for i in get_args(ToggleOption)])
+    option: bpy.props.EnumProperty(  # pyright: ignore[reportRedeclaration]
+        items=[(i, i, "") for i in get_args(ToggleOption)]
+    )

    if TYPE_CHECKING:
        target_view: str
@@ -604,7 +604,6 @@ class BIMCameraProperties(PropertyGroup):
        return tool.Blender.get_active_uilist_element(dprops.drawing_styles, self.active_drawing_style_index)

    # For now, this JSON dump are all the parameters that determine a camera's "Block representation"
-    # Perspective camera shift is stored in EPset_Drawing and intentionally excluded here.
    # By checking this, you will know whether or not the camera IFC representation needs to be refreshed
    def update_representation(self, matrix_world: Matrix) -> bool:
        """Update ``representation`` based on current camera properties and the provided world matrix.
@@ -861,13 +860,13 @@ class BIMTextProperties(PropertyGroup):
    is_editing: BoolProperty(name="Is Editing", default=False)
    literals: CollectionProperty(name="Literals", type=LiteralProps)
    newline_at: IntProperty(name="Newline At")
-    symbol: EnumProperty(
+    symbol: EnumProperty(  # pyright: ignore[reportRedeclaration]
        name="Symbol",
        description="Symbol from symbols.svg to use for this text.",
        items=[(s, s, "") for s in ["NO SYMBOL", "CUSTOM SYMBOL"] + tool.Drawing.DEFAULT_SYMBOLS],
        default="NO SYMBOL",
    )
-    custom_symbol: StringProperty(
+    custom_symbol: StringProperty(  # pyright: ignore[reportRedeclaration]
        name="Custom Symbol",
        description="Non-default symbol to use for this text.",
    )
@@ -99,10 +99,6 @@ class BIM_PT_camera(Panel):
        if props.target_view == "MODEL_VIEW":
            row = self.layout.row()
            row.prop(props, "camera_type")
-            if props.camera_type == "PERSP":
-                row = self.layout.row(align=True)
-                row.prop(camera_data, "shift_x", text="Camera Shift X/Y:")
-                row.prop(camera_data, "shift_y", text="")

        row = self.layout.row()
        row.prop(props, "linework_mode")
@@ -44,12 +44,8 @@ class ViewportData:

    @classmethod
    def load(cls):
-        # Populate data BEFORE flipping is_loaded so a raising ``mode()``
-        # call doesn't leave the class half-loaded (flag set, dict empty).
-        # Subsequent items-callback invocations skip load() on a True flag
-        # and would hit ``cls.data["mode"]`` → KeyError.
-        cls.data = {"mode": cls.mode()}
        cls.is_loaded = True
+        cls.data = {"mode": cls.mode()}

    @classmethod
    def mode(cls) -> tool.Blender.BLENDER_ENUM_ITEMS:
@@ -80,9 +76,9 @@ class ViewportData:
                modes.append(edit_mode)
            elif element.is_a("IfcGridAxis"):
                modes.append(edit_mode)
-            elif tool.Parametric.is_roof(element):
+            elif tool.Blender.Modifier.is_roof(element):
                modes.append(edit_mode)
-            elif tool.Parametric.is_railing(element):
+            elif tool.Blender.Modifier.is_railing(element):
                modes.append(edit_mode)
            elif item_mode not in modes:
                modes.append(item_mode)
@@ -16,6 +16,8 @@
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.

+from collections.abc import Sequence
+
 import blf
 import bpy
 import gpu
@@ -23,16 +25,15 @@ import ifcopenshell
 import numpy as np
 from bpy.types import SpaceView3D
 from bpy_extras.view3d_utils import location_3d_to_region_2d
+from gpu_extras.batch import batch_for_shader
 from mathutils import Matrix, Vector

 import bonsai.tool as tool


-class ItemDecorator(tool.Blender.ViewportDecorator):
-    draw_methods = (
-        ("draw_text", "POST_PIXEL"),
-        ("draw", "POST_VIEW"),
-    )
+class ItemDecorator:
+    is_installed = False
+    handlers = []
    objs: dict[str, dict[str, list]]
    obj_is_selected: dict[str, bool]
    obj_is_boolean: dict[str, list[ifcopenshell.entity_instance]]
@@ -118,6 +119,23 @@ class ItemDecorator(tool.Blender.ViewportDecorator):
            "special_edges": special_edges,
        }

+    @classmethod
+    def uninstall(cls):
+        for handler in cls.handlers:
+            try:
+                SpaceView3D.draw_handler_remove(handler, "WINDOW")
+            except ValueError:
+                pass
+        cls.is_installed = False
+
+    def draw_batch(self, shader_type, content_pos, color, indices=None):
+        if not tool.Blender.validate_shader_batch_data(content_pos, indices):
+            return
+        shader = self.line_shader if shader_type == "LINES" else self.shader
+        batch = batch_for_shader(shader, shader_type, {"pos": content_pos}, indices=indices)
+        shader.uniform_float("color", color)
+        batch.draw(shader)
+
    def draw_text(self, context):
        self.addon_prefs = tool.Blender.get_addon_preferences()
        selected_elements_color = self.addon_prefs.decorator_color_selected
@@ -145,6 +163,11 @@ class ItemDecorator(tool.Blender.ViewportDecorator):
        blf.disable(font_id, blf.SHADOW)

    def draw(self, context: bpy.types.Context) -> None:
+        def transparent_color(color: Sequence[float], alpha: float = 0.05) -> list[float]:
+            color = [i for i in color]
+            color[3] = alpha
+            return color
+
        self.addon_prefs = tool.Blender.get_addon_preferences()
        selected_elements_color = self.addon_prefs.decorator_color_selected
        unselected_elements_color = self.addon_prefs.decorator_color_unselected
@@ -174,33 +197,15 @@ class ItemDecorator(tool.Blender.ViewportDecorator):
                    if context.mode != "OBJECT":
                        continue
                    self.draw_batch("LINES", data["verts"], selected_elements_color, data["edges"])
-                    self.draw_batch(
-                        "TRIS",
-                        data["verts"],
-                        tool.Blender.transparent_color(selected_elements_color, alpha=0.05),
-                        data["tris"],
-                    )
+                    self.draw_batch("TRIS", data["verts"], transparent_color(selected_elements_color), data["tris"])
                    self.draw_batch("LINES", data["special_verts"], selected_elements_color, data["special_edges"])
                elif self.obj_is_boolean[obj_name]:
                    self.draw_batch("LINES", data["verts"], special_elements_color, data["edges"])
-                    self.draw_batch(
-                        "TRIS",
-                        data["verts"],
-                        tool.Blender.transparent_color(special_elements_color, alpha=0.05),
-                        data["tris"],
-                    )
+                    self.draw_batch("TRIS", data["verts"], transparent_color(special_elements_color), data["tris"])
                    self.draw_batch("LINES", data["special_verts"], special_elements_color, data["special_edges"])
                else:
                    self.draw_batch(
-                        "LINES",
-                        data["verts"],
-                        tool.Blender.transparent_color(unselected_elements_color, alpha=0.2),
-                        data["edges"],
-                    )
-                    self.draw_batch(
-                        "TRIS",
-                        data["verts"],
-                        tool.Blender.transparent_color(special_elements_color, alpha=0.05),
-                        data["tris"],
+                        "LINES", data["verts"], transparent_color(unselected_elements_color, alpha=0.2), data["edges"]
                    )
+                    self.draw_batch("TRIS", data["verts"], transparent_color(special_elements_color), data["tris"])
                    self.draw_batch("LINES", data["special_verts"], special_elements_color, data["special_edges"])
@@ -60,7 +60,6 @@ import bonsai.core.root
 import bonsai.core.spatial
 import bonsai.tool as tool
 from bonsai.bim.ifc import IfcStore
-from bonsai.bim.module.model import preview_base
 from bonsai.bim.module.model.decorator import ProfileDecorator

 if TYPE_CHECKING:
@@ -86,7 +85,7 @@ class EditObjectPlacement(bpy.types.Operator, tool.Ifc.Operator):
 class OverrideMeshSeparate(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.override_mesh_separate"
    bl_label = "IFC Mesh Separate"
-    blender_op = bpy.ops.mesh.separate.get_rna_type()  # ty: ignore[missing-argument]
+    blender_op = bpy.ops.mesh.separate.get_rna_type()
    bl_description = blender_op.description + ".\nAlso makes sure changes are in sync with IFC."
    bl_options = {"REGISTER", "UNDO"}
    blender_type_prop = blender_op.properties["type"]
@@ -247,7 +246,7 @@ class OverrideMeshSeparate(bpy.types.Operator, tool.Ifc.Operator):

 class OverrideOriginSet(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.override_origin_set"
-    blender_op = bpy.ops.object.origin_set.get_rna_type()  # ty: ignore[missing-argument]
+    blender_op = bpy.ops.object.origin_set.get_rna_type()
    bl_label = "IFC Origin Set"
    bl_description = (
        blender_op.description + ".\nAlso makes sure changes are in sync with IFC (operator works only on IFC objects)"
@@ -546,13 +545,6 @@ class UpdateRepresentation(bpy.types.Operator, tool.Ifc.Operator):
        objs = [bpy.data.objects[obj_name]] if obj_name else context.selected_objects
        self.file = tool.Ifc.get()

-        # Tessellated face sets (IfcTriangulatedFaceSet/IfcPolygonalFaceSet) were
-        # introduced in IFC4 and do not exist in IFC2X3. Catch this early so we
-        # don't silently fall back to a faceted brep after stripping materials.
-        if self.ifc_representation_class == "IfcTessellatedFaceSet" and self.file.schema == "IFC2X3":
-            self.report({"ERROR"}, "Tessellated face sets are not supported in IFC2X3.")
-            return {"CANCELLED"}
-
        for obj in objs:
            # TODO: write unit tests to see how this bulk operation handles
            # contradictory ifc_representation_class values and when
@@ -809,7 +801,7 @@ def calc_delete_is_batch(ifc_file: ifcopenshell.file, context: bpy.types.Context
 class OverrideDelete(bpy.types.Operator):
    bl_idname = "bim.override_object_delete"
    bl_label = "IFC Delete"
-    blender_op = bpy.ops.object.delete.get_rna_type()  # ty: ignore[missing-argument]
+    blender_op = bpy.ops.object.delete.get_rna_type()
    bl_description = (
        blender_op.description
        + ".\nAlso makes sure changes in sync with IFC."
@@ -829,7 +821,7 @@ class OverrideDelete(bpy.types.Operator):
    def poll(cls, context):
        # Match `object.delete` poll for consistency.
        # `object.delete` poll just checks for OBJECT mode.
-        poll = bpy.ops.object.delete.poll()  # ty: ignore[missing-argument]
+        poll = bpy.ops.object.delete.poll()
        if poll:
            return True
        cls.poll_message_set("Only available in OBJECT mode")
@@ -890,16 +882,6 @@ class OverrideDelete(bpy.types.Operator):
        # Track aggregates before deleting their parts
        aggregates_to_check = self.track_aggregates(objects_to_remove)

-        # Snapshot the set of IFC entity ids being deleted in this batch so the
-        # connection-rel cascade inside `delete_ifc_object` can suppress
-        # partner-side regenerate when the partner is also about to vanish.
-        batch_being_deleted_ids: set[int] = set()
-        for obj in objects_to_remove:
-            if not tool.Blender.is_valid_data_block(obj):
-                continue
-            if (entity := tool.Ifc.get_entity(obj)) is not None:
-                batch_being_deleted_ids.add(entity.id())
-
        clear_active_object = True

        for i, obj in enumerate(objects_to_remove, 1):
@@ -941,7 +923,7 @@ class OverrideDelete(bpy.types.Operator):
                if tool.Drawing.is_auto_annotation(element):
                    self.report({"INFO"}, "References cannot be deleted. Exclude the referenced element instead.")
                    continue
-                tool.Geometry.delete_ifc_object(obj, batch_being_deleted_ids=batch_being_deleted_ids)
+                tool.Geometry.delete_ifc_object(obj)
            elif tool.Geometry.is_representation_item(obj):
                tool.Geometry.delete_ifc_item(obj)
            else:
@@ -1040,17 +1022,14 @@ class OverrideDelete(bpy.types.Operator):
            pset = ifcopenshell.util.element.get_pset(element, "BBIM_Array")
            if not pset:
                continue
-            try:
-                array_parents.add(ifc_file.by_guid(pset["Parent"]))
-            except RuntimeError:
-                continue
+            array_parents.add(ifc_file.by_guid(pset["Parent"]))

        for array_parent in array_parents:
            array_parent_obj = tool.Ifc.get_object(array_parent)
-            data = [(i, data) for i, data in enumerate(tool.Array.get_modifiers_data(array_parent))]
+            data = [(i, data) for i, data in enumerate(tool.Blender.Modifier.Array.get_modifiers_data(array_parent))]
            # NOTE: there is a way to remove arrays more precisely but it's more complex
            for i, modifier_data in reversed(data):
-                children = set(tool.Array.get_children_objects(modifier_data))
+                children = set(tool.Blender.Modifier.Array.get_children_objects(modifier_data))
                if children.issubset(selected_objects):
                    with context.temp_override(active_object=array_parent_obj):
                        bpy.ops.bim.remove_array(item=i)
@@ -1066,7 +1045,7 @@ class SelectedIdsData(NamedTuple):
 class OverrideOutlinerDelete(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.override_outliner_delete"
    bl_label = "IFC Delete"
-    blender_op = bpy.ops.outliner.delete.get_rna_type()  # ty: ignore[missing-argument]
+    blender_op = bpy.ops.outliner.delete.get_rna_type()
    bl_description = (
        blender_op.description
        + ".\nAlso makes sure changes in sync with IFC."
@@ -1081,7 +1060,7 @@ class OverrideOutlinerDelete(bpy.types.Operator, tool.Ifc.Operator):
    def poll(cls, context) -> bool:
        # Match `outliner.delete` poll for consistency.
        # `outliner.delete` just checks `area.type` == `OUTLINER`.
-        poll = bpy.ops.outliner.delete.poll()  # ty: ignore[missing-argument]
+        poll = bpy.ops.outliner.delete.poll()
        if poll:
            return True
        cls.poll_message_set("Only available from Outliner.")
@@ -1185,7 +1164,7 @@ class OverrideDuplicateMove(bpy.types.Operator):
    def poll(cls, context) -> bool:
        # Match `object.duplicate_move` poll for consistency.
        # `object.duplicate_move` poll checks for OBJECT mode.
-        poll = bpy.ops.object.duplicate_move.poll()  # ty: ignore[missing-argument]
+        poll = bpy.ops.object.duplicate_move.poll()
        if poll:
            return True
        cls.poll_message_set("Only available in OBJECT mode")
@@ -1204,7 +1183,7 @@ class OverrideDuplicateMove(bpy.types.Operator):
        operator: bpy.types.Operator, context: bpy.types.Context, linked: bool = False
    ) -> set["rna_enums.OperatorReturnItems"]:
        # Deep magick from the dawn of time
-        if tool.Ifc.get() and tool.Model.has_selected_ifc_objects(include_active=False):
+        if tool.Ifc.get():
            IfcStore.execute_ifc_operator(operator, context)
            return {"FINISHED"}

@@ -1308,9 +1287,6 @@ class OverrideDuplicateMove(bpy.types.Operator):
                            if part_obj:
                                all_objects_to_select.add(part_obj)

-        # Non-IFC duplicates aren't tracked in old_to_new but are left selected by duplicate_ifc_objects
-        all_objects_to_select.update(obj for obj in context.selected_objects if not tool.Ifc.get_entity(obj))
-
        # Deselect everything first
        bpy.ops.object.select_all(action="DESELECT")

@@ -1932,7 +1908,7 @@ class RefreshLinkedAggregate(bpy.types.Operator, tool.Ifc.Operator):
 class OverrideJoin(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.override_object_join"
    bl_label = "IFC Join"
-    blender_op = bpy.ops.mesh.separate.get_rna_type()  # ty: ignore[missing-argument]
+    blender_op = bpy.ops.mesh.separate.get_rna_type()
    bl_description = (
        blender_op.description
        + ".\nAlso makes sure changes are in sync with IFC."
@@ -1950,7 +1926,7 @@ class OverrideJoin(bpy.types.Operator, tool.Ifc.Operator):

    @classmethod
    def poll(cls, context):
-        if not bpy.ops.object.join.poll():  # ty: ignore[missing-argument]
+        if not bpy.ops.object.join.poll():
            cls.poll_message_set("Active object is not EDITable.")
            return False
        if not context.selected_editable_objects:
@@ -2247,8 +2223,6 @@ class OverrideEscape(bpy.types.Operator):
            bpy.ops.bim.hide_all_openings()
        elif tool.Aggregate.get_aggregate_props().in_aggregate_mode:
            bpy.ops.bim.disable_aggregate_mode()
-        elif preview_base.try_cancel_active_preview(context):
-            pass
        elif active_object := context.active_object:
            if tool.Blender.Modifier.try_canceling_editing_modifier_parameters_or_path(active_object):
                pass
@@ -2290,8 +2264,6 @@ class OverrideModeSetEdit(bpy.types.Operator, tool.Ifc.Operator):
                gprops = tool.Geometry.get_geometry_props()
                if gprops.representation_obj:
                    tool.Geometry.disable_item_mode()
-                    if active_obj := bpy.context.active_object:
-                        active_obj.select_set(False)
                else:
                    bonsai.core.aggregate.exit_aggregate_mode(tool.Aggregate)
                return {"FINISHED"}
@@ -2378,7 +2350,6 @@ class OverrideModeSetEdit(bpy.types.Operator, tool.Ifc.Operator):
            and usage in ("LAYER1", "LAYER2")
        ):
            self.report({"INFO"}, f"Parametric {usage} elements cannot be edited directly")
-            obj.select_set(False)
        elif item.is_a("IfcSweptAreaSolid"):
            tool.Geometry.sync_item_positions()
            res = tool.Model.import_profile((profile := item.SweptArea), obj=obj)
@@ -2387,7 +2358,6 @@ class OverrideModeSetEdit(bpy.types.Operator, tool.Ifc.Operator):
                    {"INFO"},
                    f"Couldn't import profile, editing it directly is not yet supported. Failing profile: {profile}.",
                )
-                obj.select_set(False)
                return
            tool.Ifc.link(item, obj.data)
            self.enable_edit_mode(context)
@@ -2515,9 +2485,9 @@ class OverrideModeSetObject(bpy.types.Operator, tool.Ifc.Operator):
                    profile = tool.Ifc.get().by_id(profile_id)
                    if tool.Ifc.get_object(profile):  # We are editing an arbitrary profile
                        bpy.ops.bim.edit_arbitrary_profile()
-                elif tool.Parametric.is_railing(element):
+                elif tool.Blender.Modifier.is_railing(element):
                    bpy.ops.bim.finish_editing_railing_path()
-                elif tool.Parametric.is_roof(element):
+                elif tool.Blender.Modifier.is_roof(element):
                    bpy.ops.bim.finish_editing_roof_path()
                elif tool.Model.get_usage_type(element) == "PROFILE":
                    bpy.ops.bim.edit_extrusion_axis()
@@ -3186,7 +3156,7 @@ class EnableEditingRepresentationItems(bpy.types.Operator, tool.Ifc.Operator):
                product_reps = element.RepresentationMaps
            item_aspect = {}
            for product_rep in product_reps:
-                for aspect in getattr(product_rep, "HasShapeAspects", ()):
+                for aspect in product_rep.HasShapeAspects:
                    for aspect_rep in aspect.ShapeRepresentations:
                        if aspect_rep.ContextOfItems != representation.ContextOfItems:
                            continue
@@ -17,7 +17,6 @@
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.

 import bpy
-import ifcopenshell.util.unit
 from bpy.types import Menu, Panel, UIList

 import bonsai.bim
@@ -484,32 +483,10 @@ class BIM_PT_placement(Panel):
            row.label(text="No Object Placement Found")
            return

-        is_imperial = False
-        if tool.Ifc.get():
-            length_unit = ifcopenshell.util.unit.get_project_unit(tool.Ifc.get(), "LENGTHUNIT")
-            if length_unit and length_unit.Name != "METRE":
-                is_imperial = True
-
        row = self.layout.row()
-        row.label(text="Location:")
-
-        if is_imperial:
-            loc = context.active_object.location
-            for i, (axis, comp) in enumerate(zip("XYZ", (loc.x, loc.y, loc.z))):
-                split = self.layout.split(factor=0.6)
-                split.prop(context.active_object, "location", index=i, text=axis)
-                sub = split.row()
-                sub.enabled = False
-                sub.alignment = "LEFT"
-                sub.label(text=tool.Unit.format_distance(comp))
-        else:
-            for i, axis in enumerate("XYZ"):
-                self.layout.prop(context.active_object, "location", index=i, text=axis)
-
+        row.prop(context.active_object, "location", text="Location")
        row = self.layout.row()
-        row.label(text="Rotation:")
-        for i, axis in enumerate("XYZ"):
-            self.layout.prop(context.active_object, "rotation_euler", index=i, text=axis)
+        row.prop(context.active_object, "rotation_euler", text="Rotation")

        if props.blender_offset_type != "NONE":
            row = self.layout.row(align=True)
@@ -21,6 +21,7 @@ from math import radians
 import blf
 import gpu
 import ifcopenshell.util.geolocation
+from bpy.types import SpaceView3D
 from bpy_extras.view3d_utils import location_3d_to_region_2d
 from gpu_extras.batch import batch_for_shader
 from mathutils import Matrix, Vector
@@ -29,11 +30,27 @@ import bonsai.tool as tool
 from bonsai.bim.module.georeference.data import GeoreferenceData


-class GeoreferenceDecorator(tool.Blender.ViewportDecorator):
-    draw_methods = (
-        ("draw_text", "POST_PIXEL"),
-        ("draw_geometry", "POST_VIEW"),
-    )
+class GeoreferenceDecorator:
+    is_installed = False
+    handlers = []
+
+    @classmethod
+    def install(cls, context):
+        if cls.is_installed:
+            cls.uninstall()
+        handler = cls()
+        cls.handlers.append(SpaceView3D.draw_handler_add(handler.draw_text, (context,), "WINDOW", "POST_PIXEL"))
+        cls.handlers.append(SpaceView3D.draw_handler_add(handler.draw_geometry, (context,), "WINDOW", "POST_VIEW"))
+        cls.is_installed = True
+
+    @classmethod
+    def uninstall(cls):
+        for handler in cls.handlers:
+            try:
+                SpaceView3D.draw_handler_remove(handler, "WINDOW")
+            except ValueError:
+                pass
+        cls.is_installed = False

    def draw_batch(self, shader_type, content_pos, color, indices=None, should_scale=True):
        if not tool.Blender.validate_shader_batch_data(content_pos, indices):
@@ -180,10 +197,6 @@ class GeoreferenceDecorator(tool.Blender.ViewportDecorator):
        decorator_color_error = self.addon_prefs.decorator_color_error

        gpu.state.blend_set("ALPHA")
-        # The georef gizmo is a coordinate-system overlay: it must communicate
-        # orientation regardless of model contents, so depth testing is bypassed.
-        original_depth_test = gpu.state.depth_test_get()
-        gpu.state.depth_test_set("ALWAYS")

        self.line_shader = gpu.shader.from_builtin("POLYLINE_UNIFORM_COLOR")
        self.line_shader.bind()  # required to be able to change uniforms of the shader
@@ -322,8 +335,6 @@ class GeoreferenceDecorator(tool.Blender.ViewportDecorator):
                self.draw_batch("LINES", verts, decorator_color_special, edges)
                self.draw_dashed_line(location * 3, location * 6, decorator_color_error)

-        gpu.state.depth_test_set(original_depth_test)
-
    def draw_dashed_line(self, start, end, colour, should_scale=True):
        direction = (end - start).normalized()
        distance = (end - start).length
@@ -43,11 +43,11 @@ class ToggleGroup(bpy.types.Operator, tool.Ifc.Operator):
    bl_label = "Toggle Group"
    bl_options = {"REGISTER", "UNDO"}

-    ifc_definition_id: bpy.props.IntProperty()
-    group_type: bpy.props.EnumProperty(
+    ifc_definition_id: bpy.props.IntProperty()  # pyright: ignore[reportRedeclaration]
+    group_type: bpy.props.EnumProperty(  # pyright: ignore[reportRedeclaration]
        items=[(i, i, "") for i in get_args(tool.Group.GroupType)],
    )
-    option: bpy.props.EnumProperty(
+    option: bpy.props.EnumProperty(  # pyright: ignore[reportRedeclaration]
        items=[(i, i, "") for i in get_args(tool.Group.ToggleOption)],
    )

@@ -34,10 +34,8 @@ classes = (
    operator.Fetch,
    operator.Merge,
    operator.ObjectLog,
-    operator.SelectConflictEntity,
    operator.Push,
    operator.RefreshGit,
-    operator.RenameBranch,
    operator.SwitchRevision,
    operator.InstallGit,
    operator.RunGitDiff,
@@ -21,71 +21,65 @@ class IfcGitData:

    @classmethod
    def load(cls):
-        repo = None
-        if bool(tool.Ifc.get()):
-            path_ifc = tool.Ifc.get_path()
-            if os.path.isfile(path_ifc):
-                repo = tool.IfcGit.repo_from_path(path_ifc)
-
        cls.data = {
-            "repo": repo,
-            "remotes": repo.remotes if repo else None,
-            "branch_names": cls.branch_names(repo),
-            "tag_names": cls.tag_names(repo),
-            "remote_names": cls.remote_names(repo),
-            "remote_urls": {r.name: r.url for r in repo.remotes} if repo else {},
+            "repo": cls.repo(),
+            "remotes": cls.remotes(),
+            "branch_names": cls.branch_names(),
+            "remote_names": cls.remote_names(),
+            "remote_urls": cls.remote_urls(),
            "path_ifc": cls.path_ifc(),
            "branches_by_hexsha": cls.branches_by_hexsha(),
            "tags_by_hexsha": cls.tags_by_hexsha(),
-            "name_ifc": cls.name_ifc(repo),
+            "name_ifc": cls.name_ifc(),
            "dir_name": cls.dir_name(),
            "base_name": cls.base_name(),
-            "working_dir": repo.working_dir if repo else None,
-            "ifc_is_untracked": cls.ifc_is_untracked(repo),
-            "is_detached": repo.head.is_detached if repo else None,
-            "active_branch_name": repo.active_branch.name if repo and not repo.head.is_detached else None,
-            "is_dirty": cls.is_dirty(repo),
-            "current_revision": cls.current_revision(repo),
+            "working_dir": cls.working_dir(),
+            "untracked_files": cls.untracked_files(),
+            "is_detached": cls.is_detached(),
+            "active_branch_name": cls.active_branch_name(),
+            "is_dirty": cls.is_dirty(),
+            "commit": cls.commit(),
+            "current_revision": cls.current_revision(),
            "git_exe": cls.git_exe(),
            "ifcmerge_exe": cls.ifcmerge_exe(),
        }
        cls.is_loaded = True

    @classmethod
-    def branch_names(cls, repo):
-        if not repo or not repo.heads:
-            return []
-        names = sorted([b.name for b in repo.branches])
-        if "main" in names:
-            names.remove("main")
-            names = ["main"] + names
-        if repo.remotes:
-            for remote in repo.remotes:
-                for ref in remote.refs:
-                    names.append(ref.name)
-        return names
+    def repo(cls):
+        if bool(tool.Ifc.get()):
+            path_ifc = tool.Ifc.get_path()
+            if os.path.isfile(path_ifc):
+                return tool.IfcGit.repo_from_path(path_ifc)
+        return None

    @classmethod
-    def tag_names(cls, repo):
-        if not repo:
-            return []
-        return [t.name for t in repo.tags]
+    def remotes(cls):
+        if cls.repo():
+            return cls.repo().remotes
+        return None

    @classmethod
-    def remote_names(cls, repo):
-        if not repo:
-            return []
-        names = sorted([r.name for r in repo.remotes])
-        if "origin" in names:
-            names.remove("origin")
-            names = ["origin"] + names
-        return names
+    def branch_names(cls):
+        return []
+
+    @classmethod
+    def remote_names(cls):
+        return []
+
+    @classmethod
+    def remote_urls(cls):
+        result = {}
+        if cls.repo():
+            for remote in cls.repo().remotes:
+                result[remote.name] = remote.url
+        return result

    @classmethod
    def path_ifc(cls):
        path_ifc = tool.Ifc.get_path()
        if os.path.isfile(path_ifc):
-            return path_ifc
+            return tool.Ifc.get_path()
        return None

    @classmethod
@@ -94,8 +88,7 @@ class IfcGitData:
            if tool.IfcGitRepo.repo.branches:
                return tool.IfcGit.branches_by_hexsha(tool.IfcGitRepo.repo)
        except AttributeError:
-            pass
-        return {}
+            return {}

    @classmethod
    def tags_by_hexsha(cls):
@@ -104,11 +97,12 @@ class IfcGitData:
        return {}

    @classmethod
-    def name_ifc(cls, repo):
-        if bool(tool.Ifc.get()) and repo:
+    def name_ifc(cls):
+        if bool(tool.Ifc.get()):
            path_ifc = tool.Ifc.get_path()
-            if os.path.isfile(path_ifc):
-                return os.path.relpath(path_ifc, repo.working_dir)
+            if tool.IfcGitRepo.repo and os.path.isfile(path_ifc):
+                working_dir = tool.IfcGitRepo.repo.working_dir
+                return os.path.relpath(path_ifc, working_dir)
        return None

    @classmethod
@@ -128,28 +122,49 @@ class IfcGitData:
        return None

    @classmethod
-    def ifc_is_untracked(cls, repo):
-        """Return True if the IFC file exists in the repo but has not been added to git."""
-        if not repo:
-            return False
-        path_ifc = tool.Ifc.get_path()
-        if not os.path.isfile(path_ifc):
-            return False
-        return not bool(repo.git.ls_files(path_ifc))
+    def working_dir(cls):
+        if cls.repo():
+            return cls.repo().working_dir

    @classmethod
-    def is_dirty(cls, repo):
-        if repo and cls.git_exe():
+    def untracked_files(cls):
+        if cls.repo():
+            return cls.repo().untracked_files
+        return []
+
+    @classmethod
+    def is_detached(cls):
+        if cls.repo():
+            return cls.repo().head.is_detached
+
+    @classmethod
+    def active_branch_name(cls):
+        if cls.repo() and not cls.is_detached():
+            return cls.repo().active_branch.name
+
+    @classmethod
+    def is_dirty(cls):
+        if cls.repo() and cls.git_exe():
            path_ifc = tool.Ifc.get_path()
            if os.path.isfile(path_ifc):
-                return repo.is_dirty(path=path_ifc)
+                return cls.repo().is_dirty(path=path_ifc)
        return False

    @classmethod
-    def current_revision(cls, repo):
+    def commit(cls):
        props = tool.IfcGit.get_ifcgit_props()
-        if repo and repo.head.is_valid() and len(props.ifcgit_commits) > 0:
-            return repo.commit()
+        if cls.repo() and len(props.ifcgit_commits) > 0:
+            item = props.ifcgit_commits[props.commit_index]
+            try:
+                return cls.repo().commit(rev=item.hexsha)
+            except ValueError:
+                return
+
+    @classmethod
+    def current_revision(cls):
+        props = tool.IfcGit.get_ifcgit_props()
+        if cls.repo() and cls.repo().head.is_valid() and len(props.ifcgit_commits) > 0:
+            return tool.IfcGitRepo.repo.commit()

    @classmethod
    def git_exe(cls):
@@ -120,11 +120,11 @@ class CommitChanges(bpy.types.Operator):
        if props.commit_message == "":
            return False
        if repo:
-            if props.new_branch_name in IfcGitData.data["branch_names"]:
+            if props.new_branch_name in [branch.name for branch in repo.branches]:
                cls.poll_message_set("Branch already exists!")
                return False
            elif not tool.IfcGit.is_valid_ref_format(props.new_branch_name):
-                if IfcGitData.data["is_detached"]:
+                if repo.head.is_detached:
                    cls.poll_message_set("Branch name is invalid or empty!")
                    return False
                elif props.new_branch_name != "":
@@ -134,17 +134,10 @@ class CommitChanges(bpy.types.Operator):

    def execute(self, context):

-        props = tool.IfcGit.get_ifcgit_props()
-        commit_message = props.commit_message
-        new_branch_name = props.new_branch_name
-        core.commit_changes(tool.IfcGit, tool.Ifc, commit_message, new_branch_name)
-        props.new_branch_name = ""
-        props.commit_message = ""
-        core.refresh_revision_list(tool.IfcGit, tool.Ifc)
+        repo = IfcGitData.data["repo"]
+        core.commit_changes(tool.IfcGit, tool.Ifc, repo)
+        core.refresh_revision_list(tool.IfcGit, repo, tool.Ifc)
        refresh()
-        IfcGitData.load()
-        if new_branch_name:
-            props.display_branch = new_branch_name
        return {"FINISHED"}


@@ -164,7 +157,7 @@ class AddTag(bpy.types.Operator):
        repo = IfcGitData.data["repo"]
        if repo and (
            not tool.IfcGit.is_valid_ref_format(props.new_tag_name)
-            or props.new_tag_name in IfcGitData.data["tag_names"]
+            or props.new_tag_name in [tag.name for tag in repo.tags]
        ):
            return False
        return True
@@ -172,12 +165,8 @@ class AddTag(bpy.types.Operator):
    def execute(self, context):

        repo = IfcGitData.data["repo"]
-        props = tool.IfcGit.get_ifcgit_props()
-        item = props.ifcgit_commits[props.commit_index]
-        core.add_tag(tool.IfcGit, repo, item.hexsha, props.new_tag_name, props.new_tag_message)
-        props.new_tag_name = ""
-        props.new_tag_message = ""
-        core.refresh_revision_list(tool.IfcGit, tool.Ifc)
+        core.add_tag(tool.IfcGit, repo)
+        core.refresh_revision_list(tool.IfcGit, repo, tool.Ifc)
        refresh()
        return {"FINISHED"}

@@ -194,7 +183,7 @@ class DeleteTag(bpy.types.Operator):

        repo = IfcGitData.data["repo"]
        core.delete_tag(tool.IfcGit, repo, self.tag_name)
-        core.refresh_revision_list(tool.IfcGit, tool.Ifc)
+        core.refresh_revision_list(tool.IfcGit, repo, tool.Ifc)
        refresh()
        return {"FINISHED"}

@@ -202,7 +191,7 @@ class DeleteTag(bpy.types.Operator):
 class RefreshGit(bpy.types.Operator):
    """Refresh revision list"""

-    bl_label = "Refresh"
+    bl_label = ""
    bl_idname = "ifcgit.refresh"
    bl_options = {"REGISTER"}

@@ -216,7 +205,8 @@ class RefreshGit(bpy.types.Operator):

    def execute(self, context):

-        core.refresh_revision_list(tool.IfcGit, tool.Ifc)
+        repo = IfcGitData.data["repo"]
+        core.refresh_revision_list(tool.IfcGit, repo, tool.Ifc)
        refresh()
        tool.IfcGit.decolourise()
        return {"FINISHED"}
@@ -225,7 +215,7 @@ class RefreshGit(bpy.types.Operator):
 class DisplayRevision(bpy.types.Operator):
    """Colourise objects by selected revision"""

-    bl_label = "Colourise Revision"
+    bl_label = ""
    bl_idname = "ifcgit.display_revision"
    bl_options = {"REGISTER"}

@@ -260,7 +250,7 @@ class DisplayUncommitted(bpy.types.Operator):
 class SwitchRevision(bpy.types.Operator):
    """Switches the repository to the selected revision and reloads the IFC file"""

-    bl_label = "Switch Revision"
+    bl_label = ""
    bl_idname = "ifcgit.switch_revision"
    bl_options = {"REGISTER"}

@@ -278,7 +268,7 @@ class SwitchRevision(bpy.types.Operator):


 class Merge(bpy.types.Operator):
-    """Merges the selected branch into working branch.\nCtrl+click to preview without merging"""
+    """Merges the selected branch into working branch"""

    bl_label = "Merge this branch"
    bl_idname = "ifcgit.merge"
@@ -292,84 +282,15 @@ class Merge(bpy.types.Operator):
            return True
        return False

-    def invoke(self, context, event):
-        if event.ctrl:
-            core.dry_run_merge(tool.IfcGit, tool.Ifc, self)
-            refresh()
-            return {"FINISHED"}
-        return self.execute(context)
-
    def execute(self, context):
-        if core.merge_branch(tool.IfcGit, tool.Ifc, self) is not False:
+
+        if core.merge_branch(tool.IfcGit, tool.Ifc, self):
            refresh()
            return {"FINISHED"}
        else:
            return {"CANCELLED"}


-class SelectConflictEntity(bpy.types.Operator):
-    """Select the conflicting entity in the viewport"""
-
-    bl_label = "Select Conflict Entity"
-    bl_idname = "ifcgit.select_conflict_entity"
-    bl_options = {"REGISTER"}
-
-    step_id: bpy.props.IntProperty()
-
-    if TYPE_CHECKING:
-        step_id: int
-
-    def execute(self, context):
-        model = tool.Ifc.get()
-        if not model:
-            return {"CANCELLED"}
-
-        try:
-            entity = model.by_id(self.step_id)
-        except Exception:
-            self.report({"WARNING"}, f"Entity #{self.step_id} not found (may have been deleted locally)")
-            return {"CANCELLED"}
-
-        obj = tool.Ifc.get_object(entity)
-        if obj is None:
-            # Walk inverse references up to 5 hops to find nearest entity with a Blender object
-            visited = {entity.id()}
-            queue = [entity]
-            for _ in range(5):
-                next_queue = []
-                for ent in queue:
-                    for inv in model.get_inverse(ent):
-                        if inv.id() in visited:
-                            continue
-                        visited.add(inv.id())
-                        obj = tool.Ifc.get_object(inv)
-                        if obj is not None:
-                            break
-                        next_queue.append(inv)
-                    if obj is not None:
-                        break
-                if obj is not None:
-                    break
-                queue = next_queue
-
-        if obj is None:
-            self.report({"INFO"}, f"No viewport representation found for #{self.step_id} ({entity.is_a()})")
-            return {"CANCELLED"}
-
-        bpy.ops.object.select_all(action="DESELECT")
-        obj.select_set(True)
-        context.view_layer.objects.active = obj
-        for area in context.screen.areas:
-            if area.type == "VIEW_3D":
-                region = next((r for r in area.regions if r.type == "WINDOW"), None)
-                if region:
-                    with context.temp_override(area=area, region=region):
-                        bpy.ops.view3d.view_selected()
-                break
-
-        return {"FINISHED"}
-
-
 class Push(bpy.types.Operator):
    """Pushes the working branch to selected remote"""

@@ -393,9 +314,9 @@ class Fetch(bpy.types.Operator):

    def execute(self, context):
        props = tool.IfcGit.get_ifcgit_props()
-        core.fetch(tool.IfcGit, props.select_remote)
-        core.refresh_revision_list(tool.IfcGit, tool.Ifc)
-        refresh()
+        repo = IfcGitData.data["repo"]
+        remote = repo.remotes[props.select_remote]
+        remote.fetch()
        return {"FINISHED"}


@@ -415,7 +336,7 @@ class AddRemote(bpy.types.Operator):
            not repo
            or not tool.IfcGit.is_valid_ref_format(props.remote_name)
            or not props.remote_url
-            or props.remote_name in IfcGitData.data["remote_names"]
+            or props.remote_name in [remote.name for remote in repo.remotes]
        ):
            return False
        return True
@@ -423,11 +344,8 @@ class AddRemote(bpy.types.Operator):
    def execute(self, context):

        repo = IfcGitData.data["repo"]
-        props = tool.IfcGit.get_ifcgit_props()
-        core.add_remote(tool.IfcGit, repo, props.remote_name, props.remote_url)
-        props.remote_name = ""
-        props.remote_url = ""
-        core.refresh_revision_list(tool.IfcGit, tool.Ifc)
+        core.add_remote(tool.IfcGit, repo)
+        core.refresh_revision_list(tool.IfcGit, repo, tool.Ifc)
        refresh()
        return {"FINISHED"}

@@ -442,19 +360,8 @@ class DeleteRemote(bpy.types.Operator):
    def execute(self, context):

        repo = IfcGitData.data["repo"]
-        props = tool.IfcGit.get_ifcgit_props()
-        remote_name = props.select_remote
-        if props.display_branch.startswith(remote_name + "/"):
-            active = IfcGitData.data["active_branch_name"]
-            if active:
-                props.display_branch = active
-            else:
-                local_branches = [b for b in IfcGitData.data["branch_names"] if "/" not in b]
-                if local_branches:
-                    props.display_branch = local_branches[0]
-        core.delete_remote(tool.IfcGit, repo, remote_name)
-        tool.IfcGit.select_first_remote()
-        core.refresh_revision_list(tool.IfcGit, tool.Ifc)
+        core.delete_remote(tool.IfcGit, repo)
+        core.refresh_revision_list(tool.IfcGit, repo, tool.Ifc)
        refresh()
        return {"FINISHED"}

@@ -468,8 +375,8 @@ class ObjectLog(bpy.types.Operator):

    @classmethod
    def poll(cls, context):
-        if not (obj := context.active_object) or not obj.select_get():
-            cls.poll_message_set("No selected object")
+        if not (obj := context.active_object):
+            cls.poll_message_set("No Active Object")
        elif not tool.Blender.get_ifc_definition_id(obj):
            cls.poll_message_set("Active Object doesn't have an IFC definition")
        else:
@@ -515,7 +422,7 @@ class RunGitDiff(bpy.types.Operator):
    )
    bl_options = set()

-    save_to_temp: bpy.props.BoolProperty(options={"SKIP_SAVE"})
+    save_to_temp: bpy.props.BoolProperty(options={"SKIP_SAVE"})  # pyright: ignore[reportRedeclaration]

    if TYPE_CHECKING:
        save_to_temp: bool
@@ -538,37 +445,3 @@ class RunGitDiff(bpy.types.Operator):
    def execute(self, context):
        core.run_git_diff(tool.IfcGit, self, self.save_to_temp)
        return {"FINISHED"}
-
-
-class RenameBranch(bpy.types.Operator):
-    """Rename the current branch"""
-
-    bl_label = "Rename Branch"
-    bl_idname = "ifcgit.rename_branch"
-    bl_options = {"REGISTER"}
-
-    new_name: bpy.props.StringProperty(name="New name")
-
-    if TYPE_CHECKING:
-        new_name: str
-
-    @classmethod
-    def poll(cls, context):
-        IfcGitData.make_sure_is_loaded()
-        if not IfcGitData.data["repo"]:
-            return False
-        if IfcGitData.data["is_detached"]:
-            return False
-        if IfcGitData.data["is_dirty"]:
-            return False
-        return True
-
-    def invoke(self, context, event):
-        self.new_name = IfcGitData.data["active_branch_name"]
-        return context.window_manager.invoke_props_dialog(self)
-
-    def execute(self, context):
-        repo = IfcGitData.data["repo"]
-        core.rename_branch(tool.IfcGit, repo, self.new_name)
-        refresh()
-        return {"FINISHED"}
@@ -17,14 +17,28 @@ from bonsai.bim.module.ifcgit.data import IfcGitData
 def git_branches(self: "IfcGitProperties", context: bpy.types.Context) -> tool.Blender.BLENDER_ENUM_ITEMS:
    # NOTE "Python must keep a reference to the strings returned by
    # the callback or Blender will misbehave or even crash"
-    # Branch list (local + remote, main first) is computed once in IfcGitData.load()
-    IfcGitData.make_sure_is_loaded()
-    return [(name, name, name) for name in IfcGitData.data["branch_names"]]
+    IfcGitData.data["branch_names"] = sorted([branch.name for branch in IfcGitData.data["repo"].heads])
+
+    if "main" in IfcGitData.data["branch_names"]:
+        IfcGitData.data["branch_names"].remove("main")
+        IfcGitData.data["branch_names"] = ["main"] + IfcGitData.data["branch_names"]
+
+    if IfcGitData.data["remotes"]:
+        for remote in IfcGitData.data["remotes"]:
+            for remote_branch in remote.refs:
+                IfcGitData.data["branch_names"].append(remote_branch.name)
+
+    return [(myname, myname, myname) for myname in IfcGitData.data["branch_names"]]


 def git_remotes(self: "IfcGitProperties", context: bpy.types.Context) -> tool.Blender.BLENDER_ENUM_ITEMS:
-    IfcGitData.make_sure_is_loaded()
-    return [(name, name, name) for name in IfcGitData.data["remote_names"]]
+    IfcGitData.data["remote_names"] = sorted([remote.name for remote in IfcGitData.data["remotes"]])
+
+    if "origin" in IfcGitData.data["remote_names"]:
+        IfcGitData.data["remote_names"].remove("origin")
+        IfcGitData.data["remote_names"] = ["origin"] + IfcGitData.data["remote_names"]
+
+    return [(myname, myname, myname) for myname in IfcGitData.data["remote_names"]]


 def update_revlist(self: "IfcGitProperties", context: bpy.types.Context) -> None:
@@ -76,7 +90,6 @@ class IfcGitListItem(PropertyGroup):
        name="Commit Message",
        default="",
    )
-    committed_date: IntProperty(name="Committed Date", default=0)
    tags: CollectionProperty(type=IfcGitTag, name="List of revision tags")

    if TYPE_CHECKING:
@@ -85,7 +98,6 @@ class IfcGitListItem(PropertyGroup):
        author_name: str
        author_email: str
        message: str
-        committed_date: int
        tags: bpy.types.bpy_prop_collection_idprop[IfcGitTag]


@@ -139,11 +151,6 @@ class IfcGitProperties(PropertyGroup):
        ],
        update=update_revlist,
    )
-    merge_conflicts: StringProperty(
-        name="Merge Conflicts",
-        description="JSON report from last failed merge attempt",
-        default="",
-    )

    if TYPE_CHECKING:
        ifcgit_commits: bpy.types.bpy_prop_collection_idprop[IfcGitListItem]
@@ -158,4 +165,3 @@ class IfcGitProperties(PropertyGroup):
        display_branch: str
        select_remote: str
        ifcgit_filter: Literal["all", "tagged", "relevant"]
-        merge_conflicts: str
@@ -52,7 +52,7 @@ class IFCGIT_PT_panel(bpy.types.Panel):
            if IfcGitData.data["repo"] and os.path.exists(IfcGitData.data["repo"].git_dir):
                name_ifc = IfcGitData.data["name_ifc"]
                row.label(text=IfcGitData.data["working_dir"], icon="SYSTEM")
-                if IfcGitData.data["ifc_is_untracked"]:
+                if name_ifc in IfcGitData.data["untracked_files"]:
                    row.operator(
                        "ifcgit.addfile",
                        text="Add '" + name_ifc + "' to repository",
@@ -112,13 +112,15 @@ class IFCGIT_PT_panel(bpy.types.Panel):
            row.label(text="Working branch: Detached HEAD")
        else:
            row.label(text="Working branch: " + IfcGitData.data["active_branch_name"])
-            row.operator("ifcgit.rename_branch", icon="GREASEPENCIL", text="")

-        row = layout.row()
+        grouped = layout.row()
+        column = grouped.column()
+        row = column.row()
        row.prop(props, "display_branch", text="Browse branch")
        row.prop(props, "ifcgit_filter", text="Filter revisions")

-        layout.template_list(
+        row = column.row()
+        row.template_list(
            "COMMIT_UL_List",
            "The_List",
            props,
@@ -126,64 +128,20 @@ class IFCGIT_PT_panel(bpy.types.Panel):
            props,
            "commit_index",
        )
-
-        row = layout.row(align=True)
+        column = grouped.column()
+        row = column.row()
        row.operator("ifcgit.refresh", icon="FILE_REFRESH")
+
        if not is_dirty:
+
+            row = column.row()
            row.operator("ifcgit.display_revision", icon="SELECT_DIFFERENCE")
+
+            row = column.row()
            row.operator("ifcgit.switch_revision", icon="CURRENT_FILE")
-            row.operator("ifcgit.merge", icon="SYSTEM")

-        conflicts = tool.IfcGit.get_merge_conflicts()
-        if conflicts is not None:
-            box = layout.box()
-            box.alert = True
-            row = box.row()
-            row.label(
-                text=f"Merge failed \u2014 {len(conflicts)} conflict(s)",
-                icon="ERROR",
-            )
-            for conflict in conflicts:
-                col = box.column(align=True)
-                conflict_type = conflict.get("type", "")
-                entity_id = conflict.get("entity_id", "?")
-                local_id = conflict.get("original_local_id")
-
-                if conflict_type == "attribute_conflict":
-                    entity_class = conflict.get("entity_class", "Entity")
-                    attr_idx = conflict.get("attribute_index", "?")
-                    desc = f"#{entity_id} {entity_class}: attribute {attr_idx} conflict"
-                elif conflict_type == "entity_deleted_and_modified":
-                    entity_class = conflict.get("entity_class", "Entity")
-                    desc = f"#{entity_id} {entity_class}: " + conflict.get("message", "deleted/modified conflict")
-                elif conflict_type == "class_changed":
-                    desc = (
-                        f"#{entity_id}: class changed "
-                        + conflict.get("base_class", "?")
-                        + " \u2192 "
-                        + conflict.get("modified_class", "?")
-                    )
-                elif conflict_type == "required_entity_deleted":
-                    desc = f"#{entity_id}: " + conflict.get("message", "required entity deleted")
-                else:
-                    desc = f"#{entity_id}: {conflict_type}"
-
-                row = col.row(align=True)
-                row.label(text=desc)
-                if local_id:
-                    op = row.operator(
-                        "ifcgit.select_conflict_entity",
-                        text="",
-                        icon="RESTRICT_SELECT_OFF",
-                    )
-                    op.step_id = local_id
-
-                if conflict_type == "attribute_conflict":
-                    sub = col.column(align=True)
-                    sub.scale_y = 0.75
-                    sub.label(text=f"  Base:   {conflict.get('base_value', '')}")
-                    sub.label(text=f"  Local:  {conflict.get('local_value', '')}")
-                    sub.label(text=f"  Remote: {conflict.get('remote_value', '')}")
+            row = column.row()
+            row.operator("ifcgit.merge", icon="EXPERIMENTAL", text="")

        if not props.ifcgit_commits:
            return
@@ -258,7 +216,13 @@ class COMMIT_UL_List(bpy.types.UIList):
    ):

        current_revision = IfcGitData.data["current_revision"]
-        current_hexsha = current_revision.hexsha if current_revision else None
+
+        # TODO Figure how this "item" can be acesse in "data.py"
+        # so it's possible to move the ".commit"
+        try:
+            commit = IfcGitData.data["repo"].commit(rev=item.hexsha)
+        except ValueError:
+            return

        lookup = IfcGitData.data["branches_by_hexsha"]
        refs = ""
@@ -272,11 +236,11 @@ class COMMIT_UL_List(bpy.types.UIList):
            for tag in lookup[item.hexsha]:
                refs += "{" + tag.name + "} "

-        if item.hexsha == current_hexsha:
-            layout.label(text="[HEAD] " + refs + item.message.split("\n")[0], icon="DECORATE_KEYFRAME")
+        if commit == current_revision:
+            layout.label(text="[HEAD] " + refs + commit.message.split("\n")[0], icon="DECORATE_KEYFRAME")
        else:
-            layout.label(text=refs + item.message.split("\n")[0], icon="DECORATE_ANIMATE")
-        layout.label(text=time.strftime("%c", time.localtime(item.committed_date)))
+            layout.label(text=refs + commit.message.split("\n")[0], icon="DECORATE_ANIMATE")
+        layout.label(text=time.strftime("%c", time.localtime(commit.committed_date)))

    def draw_filter(self, context, layout):

@@ -20,18 +20,44 @@
 import blf
 import bpy
 import gpu
+from bpy.types import SpaceView3D
 from bpy_extras.view3d_utils import location_3d_to_region_2d
+from gpu_extras.batch import batch_for_shader
 from mathutils import Matrix, Vector

 import bonsai.tool as tool
 from bonsai.bim.module.light.data import SolarData


-class SolarDecorator(tool.Blender.ViewportDecorator):
-    draw_methods = (
-        ("draw_text", "POST_PIXEL"),
-        ("draw_geometry", "POST_VIEW"),
-    )
+class SolarDecorator:
+    is_installed = False
+    handlers = []
+
+    @classmethod
+    def install(cls, context):
+        if cls.is_installed:
+            cls.uninstall()
+        handler = cls()
+        cls.handlers.append(SpaceView3D.draw_handler_add(handler.draw_text, (context,), "WINDOW", "POST_PIXEL"))
+        cls.handlers.append(SpaceView3D.draw_handler_add(handler.draw_geometry, (context,), "WINDOW", "POST_VIEW"))
+        cls.is_installed = True
+
+    @classmethod
+    def uninstall(cls):
+        for handler in cls.handlers:
+            try:
+                SpaceView3D.draw_handler_remove(handler, "WINDOW")
+            except ValueError:
+                pass
+        cls.is_installed = False
+
+    def draw_batch(self, shader_type, content_pos, color, indices=None):
+        if not tool.Blender.validate_shader_batch_data(content_pos, indices):
+            return
+        shader = self.line_shader if shader_type == "LINES" else self.shader
+        batch = batch_for_shader(shader, shader_type, {"pos": content_pos}, indices=indices)
+        shader.uniform_float("color", color)
+        batch.draw(shader)

    def draw_text(self, context: bpy.types.Context) -> None:
        self.addon_prefs = tool.Blender.get_addon_preferences()
@@ -272,21 +272,21 @@ class RadianceRender(bpy.types.Operator):
                    + '''" map_u map_v
 0
 1 0.5
-
+ 
 # This is a multiplier to colour balance the env map
 # In this case, it provides a rough ground luminance from 3k-5k
 env_map colorfunc env_colour
 4 100 100 100 .
 0
 0
-
+ 
 # .37 .57 1.5 is measured from a HDRI image
 # It is multiplied by a factor such that grey(r,g,b) = 1
 skyfunc colorfunc sky_colour
 4 .64 .99 2.6 .
 0
 0
-
+ 
 void mixpict composite
 7 env_colour sky_colour grey "'''
                    + hdr_mask_path
@@ -295,22 +295,22 @@ void mixpict composite
                    + """" map_u map_v
 0
 2 0.5 1
-
+ 
 composite glow env_map_glow
 0
 0
 4 1 1 1 0
-
+ 
 env_map_glow source sky
 0
 0
 4 0 0 1 180
-
+ 
 env_colour glow ground_glow
 0
 0
 4 1 1 1 0
-
+ 
 ground_glow source ground
 0
 0
@@ -566,7 +566,7 @@ class LightPickCoordinates(bpy.types.Operator):
    )
    bl_options = {"REGISTER", "UNDO"}

-    use_current_location: bpy.props.BoolProperty(options={"SKIP_SAVE"})
+    use_current_location: bpy.props.BoolProperty(options={"SKIP_SAVE"})  # pyright: ignore[reportRedeclaration]

    if TYPE_CHECKING:
        use_current_location: bool
@@ -630,23 +630,13 @@ class EditAssignedMaterial(bpy.types.Operator, tool.Ifc.Operator):
                    slab.DumbSlabPlaner().regenerate_from_layer_set(layer_set)

            if material_set_usage.is_a("IfcMaterialProfileSetUsage"):
-                if "CardinalPoint" in attributes and attributes["CardinalPoint"] is not None:
+                if "CardinalPoint" in attributes:
                    attributes["CardinalPoint"] = int(attributes["CardinalPoint"])
                ifcopenshell.api.material.edit_profile_usage(
                    self.file,
                    usage=material_set_usage,
                    attributes=attributes,
                )
-
-                for obj in objects:
-                    obj_element = tool.Ifc.get_entity(obj)
-                    if not obj_element:
-                        continue
-                    obj_material_usage = ifcopenshell.util.element.get_material(obj_element)
-                    if obj_material_usage and obj_material_usage.is_a("IfcMaterialProfileSetUsage"):
-                        obj_material_usage.CardinalPoint = material_set_usage.CardinalPoint
-                        obj_material_usage.ReferenceExtent = material_set_usage.ReferenceExtent
-
                model_profile.DumbProfileRecalculator().recalculate(objects)

        bpy.ops.bim.disable_editing_assigned_material(obj=active_obj.name)
@@ -136,7 +136,7 @@ class SplitAlongEdge(bpy.types.Operator, tool.Ifc.Operator):
        "Will unassign element from a type if type has a representation."
    )
    bl_options = {"REGISTER", "UNDO"}
-    mode: bpy.props.EnumProperty(
+    mode: bpy.props.EnumProperty(  # pyright: ignore[reportRedeclaration]
        default="BOOLEAN",
        items=tuple((i, i, "") for i in get_args(SplitAlongEdgeMode)),
    )
@@ -359,7 +359,7 @@ class ConfirmQuickFavoriteOperator(bpy.types.Operator):
    bl_idname = "bim.confirm_quick_favorite_operator"
    bl_label = "Confirm Operator"
    bl_options = {"REGISTER", "UNDO"}
-    index: bpy.props.IntProperty()
+    index: bpy.props.IntProperty()  # pyright: ignore[reportRedeclaration]

    if TYPE_CHECKING:
        index: int
@@ -452,8 +452,10 @@ class MoveQuickFavoritesItem(bpy.types.Operator):
    bl_idname = "bim.move_quick_favorites_item"
    bl_label = "Move Quick Favorites Item"
    bl_options = {"REGISTER", "UNDO"}
-    index: bpy.props.IntProperty()
-    direction: bpy.props.EnumProperty(items=[("UP", "Up", ""), ("DOWN", "Down", "")])
+    index: bpy.props.IntProperty()  # pyright: ignore[reportRedeclaration]
+    direction: bpy.props.EnumProperty(  # pyright: ignore[reportRedeclaration]
+        items=[("UP", "Up", ""), ("DOWN", "Down", "")]
+    )

    if TYPE_CHECKING:
        index: int
@@ -472,7 +474,7 @@ class RemoveQuickFavoritesItem(bpy.types.Operator):
    bl_idname = "bim.remove_quick_favorites_item"
    bl_label = "Remove Quick Favorites Item"
    bl_options = {"REGISTER", "UNDO"}
-    index: bpy.props.IntProperty()
+    index: bpy.props.IntProperty()  # pyright: ignore[reportRedeclaration]

    if TYPE_CHECKING:
        index: int
@@ -36,9 +36,9 @@ QuickFavoriteValueType = Literal["float_value", "bool_value", "int_value", "stri


 class QuickFavoriteEnumItem(PropertyGroup):
-    name: StringProperty(name="Name", default="")
-    display_name: StringProperty(name="Display Name", default="")
-    description: StringProperty(name="Description", default="")
+    name: StringProperty(name="Name", default="")  # pyright: ignore[reportRedeclaration]
+    display_name: StringProperty(name="Display Name", default="")  # pyright: ignore[reportRedeclaration]
+    description: StringProperty(name="Description", default="")  # pyright: ignore[reportRedeclaration]

    if TYPE_CHECKING:
        name: str
@@ -51,19 +51,19 @@ def get_enum_items(self: "QuickFavoriteProperty", context: bpy.types.Context | N


 class QuickFavoriteProperty(PropertyGroup):
-    name: StringProperty(name="Name", default="")
-    display_name: StringProperty(name="Display Name", default="")
-    value_prop: EnumProperty(
+    name: StringProperty(name="Name", default="")  # pyright: ignore[reportRedeclaration]
+    display_name: StringProperty(name="Display Name", default="")  # pyright: ignore[reportRedeclaration]
+    value_prop: EnumProperty(  # pyright: ignore[reportRedeclaration]
        name="Value Prop",
        items=tuple((v, v, "") for v in get_args(QuickFavoriteValueType)),
    )
-    string_value: StringProperty(name="String Value", default="")
-    float_value: FloatProperty(name="Float Value", default=0.0)
-    int_value: IntProperty(name="Int Value", default=0)
-    bool_value: BoolProperty(name="Bool Value", default=False)
-    enum_value: EnumProperty(name="Enum Value", items=get_enum_items)
-    enum_items: CollectionProperty(type=QuickFavoriteEnumItem)
-    is_active: BoolProperty(
+    string_value: StringProperty(name="String Value", default="")  # pyright: ignore[reportRedeclaration]
+    float_value: FloatProperty(name="Float Value", default=0.0)  # pyright: ignore[reportRedeclaration]
+    int_value: IntProperty(name="Int Value", default=0)  # pyright: ignore[reportRedeclaration]
+    bool_value: BoolProperty(name="Bool Value", default=False)  # pyright: ignore[reportRedeclaration]
+    enum_value: EnumProperty(name="Enum Value", items=get_enum_items)  # pyright: ignore[reportRedeclaration]
+    enum_items: CollectionProperty(type=QuickFavoriteEnumItem)  # pyright: ignore[reportRedeclaration]
+    is_active: BoolProperty(  # pyright: ignore[reportRedeclaration]
        name="Is Active",
        description="Only active properties will be added to the operator when invoked from Quick Favorites",
        default=False,
@@ -100,20 +100,20 @@ def get_operator_suggestions(self: "QuickFavoritesItem", context: bpy.types.Cont


 class QuickFavoritesItem(PropertyGroup):
-    is_expanded: BoolProperty(name="Is Expanded", default=False)
-    search: StringProperty(
+    is_expanded: BoolProperty(name="Is Expanded", default=False)  # pyright: ignore[reportRedeclaration]
+    search: StringProperty(  # pyright: ignore[reportRedeclaration]
        name="Search",
        default="",
        search=get_operator_suggestions,
        # Resetting `search_options`, allowing users only to use suggestions.
        search_options=set(),
    )
-    properties: CollectionProperty(type=QuickFavoriteProperty)
-    operator_id: StringProperty(
+    properties: CollectionProperty(type=QuickFavoriteProperty)  # pyright: ignore[reportRedeclaration]
+    operator_id: StringProperty(  # pyright: ignore[reportRedeclaration]
        name="Operator ID",
        default="",
    )
-    label: StringProperty(
+    label: StringProperty(  # pyright: ignore[reportRedeclaration]
        name="Label",
        description="Label that will be used in Quick Favorites for this operator",
        default="",
@@ -139,15 +139,15 @@ class QuickFavoritesItem(PropertyGroup):


 class BIMMiscProperties(PropertyGroup):
-    total_storeys: IntProperty(
+    total_storeys: IntProperty(  # pyright: ignore[reportRedeclaration]
        name="Total Storeys",
        description="Number of storeys above object's storey to take into account for resizing",
        default=1,
    )
-    override_colour: FloatVectorProperty(
+    override_colour: FloatVectorProperty(  # pyright: ignore[reportRedeclaration]
        name="Override Colour", subtype="COLOR", default=(1, 0, 0, 1), min=0.0, max=1.0, size=4
    )
-    quick_favorites: CollectionProperty(type=QuickFavoritesItem)
+    quick_favorites: CollectionProperty(type=QuickFavoritesItem)  # pyright: ignore[reportRedeclaration]

    if TYPE_CHECKING:
        total_storeys: int
@@ -15,26 +15,19 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.

 from typing import NamedTuple

 import bpy

-import bonsai.tool as tool
-
 from . import (
    array,
    covering,
-    decorator,
    door,
    external,
    grid,
    handler,
-    host_add_opening_gizmo,
    mep,
-    mep_bend_preview,
    opening,
    product,
    profile,
@@ -53,28 +46,17 @@ from . import (

 classes = (
    array.AddArray,
-    array.CancelEditingArray,
+    array.DisableEditingArray,
+    array.EditArray,
    array.EnableEditingArray,
-    array.FinishEditingArray,
    array.ApplyArray,
    array.RegenerateArray,
    array.RemoveArray,
    array.SelectAllArrayObjects,
    array.SelectArrayParent,
-    array.ArrayParentGizmoClick,
-    array.EditArrayFromChild,
    array.Input3DCursorXArray,
    array.Input3DCursorYArray,
    array.Input3DCursorZArray,
-    array.EnableEditingParametric,
-    array.AddArrayFromFeatureEdit,
-    array.ArrayGizmoClick,
-    array.ToggleArrayMethod,
-    array.RemoveArrayLayerFromEdit,
-    array.InputArrayCount,
-    array.AdjustArrayCount,
-    array.GizmoArrayEdition,
-    array.GizmoArrayChild,
    product.AddDefaultType,
    product.AddEmptyType,
    product.AddOccurrence,
@@ -86,51 +68,21 @@ classes = (
    product.SetActiveType,
    workspace.Hotkey,
    workspace.BIM_MT_add_representation_item,
-    wall.AddPerpendicularWall,
    wall.AddWallsFromSlab,
    wall.AlignWall,
-    wall.CancelEditingWall,
    wall.ChangeExtrusionDepth,
    wall.ChangeExtrusionXAngle,
    wall.ChangeLayerLength,
-    wall.CycleWallOffset,
    wall.DrawPolylineWall,
-    wall.EnableEditingWall,
-    wall.ExtendWallHeightToCursor,
    wall.ExtendWallsToUnderside,
-    wall.RegenerateWallToUnderside,
    wall.ExtendWallsToWall,
    wall.ExtendWallsToPolylinePoint,
-    wall.ExtendWallToCursor,
-    wall.FinishEditingWall,
    wall.FlipWall,
-    host_add_opening_gizmo.GizmoHostAddOpening,
-    host_add_opening_gizmo.GizmoHostToggleOpenings,
-    wall.GizmoWallEdition,
-    wall.GizmoWallExtendVertically,
-    wall.GizmoWallFilletPreview,
-    wall.GizmoWallFilletReedit,
-    wall.GizmoWallFilletToggleOpenings,
-    wall.GizmoPairDisconnect,
-    wall.GizmoSlabEdition,
-    wall.GizmoSlabUnjoinWalls,
-    wall.GizmoWallJoinIntersection,
-    wall.GizmoWallLinkToggle,
-    wall.GizmoWallUnjoinSingle,
-    wall.JoinWallsIntersection,
    wall.MergeWall,
    wall.OffsetWalls,
    wall.RecalculateWall,
-    wall.RotateWall90,
    wall.SplitWall,
-    wall.SplitWallAtCursor,
-    wall.DisconnectElements,
    wall.UnjoinWalls,
-    wall.EnableWallFilletPreview,
-    wall.FinishWallFilletPreview,
-    wall.CancelWallFilletPreview,
-    wall.EnableWallFilletPreviewFromCorner,
-    wall.CreateWallFillet,
    opening.AddBoolean,
    opening.CloneOpening,
    opening.EditOpenings,
@@ -142,7 +94,6 @@ classes = (
    opening.RemoveBoolean,
    opening.SelectBoolean,
    opening.ShowOpenings,
-    opening.ToggleHostOpenings,
    opening.UpdateOpeningsFocus,
    profile.ChangeCardinalPoint,
    profile.ChangeProfileDepth,
@@ -153,19 +104,17 @@ classes = (
    profile.ExtendProfile,
    profile.RecalculateProfile,
    profile.Rotate90,
+    profile.SplitProfile,
    profile.PatchNonParametricMepSegment,
    roof.GenerateHippedRoof,
    slab.DisableEditingExtrusionProfile,
    slab.DisableEditingSketchExtrusionProfile,
    slab.AddSlabFromWall,
-    slab.CancelEditingSlab,
    slab.DrawPolylineSlab,
    slab.EditExtrusionProfile,
    slab.EditSketchExtrusionProfile,
    slab.EnableEditingExtrusionProfile,
    slab.EnableEditingSketchExtrusionProfile,
-    slab.EnableEditingSlab,
-    slab.FinishEditingSlab,
    slab.RecalculateSlab,
    slab.ResetVertex,
    slab.SetArcIndex,
@@ -192,19 +141,10 @@ classes = (
    prop.BIMDoorProperties,
    prop.BIMRailingProperties,
    prop.BIMRoofProperties,
-    prop.BIMSlabProperties,
-    prop.BIMWallProperties,
-    prop.BIMPipeSegmentProperties,
-    prop.BIMDuctSegmentProperties,
    prop.BIMPolylineProperties,
    prop.BIMExternalParametricGeometryProperties,
-    prop.BIMBendPreviewProperties,
-    prop.BIMWallFilletPreviewProperties,
-    prop.BIMPreviewProperties,
-    prop.BIMParametricEditDialogPrefs,
    ui.BIM_PT_array,
    ui.BIM_PT_stair,
-    ui.BIM_PT_wall,
    ui.BIM_PT_sverchok,
    ui.BIM_PT_window,
    ui.BIM_PT_door,
@@ -225,8 +165,7 @@ classes = (
    stair.ToggleStairProperty,
    stair.AdjustStairTreads,
    stair.SetStairTreads,
-    stair.InputStairTreads,
-    stair.PickStairType,
+    stair.CycleStairType,
    stair.GizmoStairEdition,
    sverchok_modifier.CreateNewSverchokGraph,
    sverchok_modifier.UpdateDataFromSverchok,
@@ -239,7 +178,7 @@ classes = (
    window.FinishEditingWindow,
    window.EnableEditingWindow,
    window.RemoveWindow,
-    window.PickWindowType,
+    window.CycleWindowType,
    window.GizmoWindowEdition,
    door.BIM_OT_add_door,
    door.AddDoor,
@@ -248,19 +187,15 @@ classes = (
    door.EnableEditingDoor,
    door.RemoveDoor,
    door.ToggleDoorSwing,
-    door.PickDoorType,
+    door.CycleDoorType,
    door.GizmoDoorEdition,
    railing.BIM_OT_add_railing,
    railing.CopyRailingParameters,
    railing.AddRailing,
    railing.CancelEditingRailing,
-    railing.CycleRailingType,
    railing.FinishEditingRailing,
-    railing.PickRailingTerminalType,
    railing.FlipRailingPathOrder,
    railing.EnableEditingRailing,
-    railing.GizmoRailingSchematic,
-    railing.ToggleRailingUseManualSupports,
    railing.CancelEditingRailingPath,
    railing.FinishEditingRailingPath,
    railing.EnableEditingRailingPath,
@@ -269,39 +204,16 @@ classes = (
    roof.AddRoof,
    roof.CancelEditingRoof,
    roof.CopyRoofParameters,
-    roof.CycleRoofGenerationMethod,
    roof.FinishEditingRoof,
    roof.EnableEditingRoof,
    roof.CancelEditingRoofPath,
    roof.FinishEditingRoofPath,
    roof.EnableEditingRoofPath,
-    roof.GizmoRoofEdition,
    roof.RemoveRoof,
    roof.SetGableRoofEdgeAngle,
    mep.MEPAddObstruction,
    mep.MEPAddTransition,
    mep.MEPAddBend,
-    mep.MEPRemoveTerminalFitting,
-    mep.SelectMEPPathMembers,
-    mep.MEPJoinSegments,
-    mep_bend_preview.EnableBendPreview,
-    mep_bend_preview.FinishBendPreview,
-    mep_bend_preview.CancelBendPreview,
-    mep_bend_preview.EnableBendPreviewFromBend,
-    mep_bend_preview.GizmoBendPreview,
-    mep.EnableEditingPipeSegment,
-    mep.FinishEditingPipeSegment,
-    mep.CancelEditingPipeSegment,
-    mep.EnableEditingDuctSegment,
-    mep.FinishEditingDuctSegment,
-    mep.CancelEditingDuctSegment,
-    mep.ExtendPipeSegmentToCursor,
-    mep.ExtendDuctSegmentToCursor,
-    mep.SplitPipeSegmentAtCursor,
-    mep.SplitDuctSegmentAtCursor,
-    mep.GizmoPipeSegmentEdition,
-    mep.GizmoDuctSegmentEdition,
-    mep.GizmoMEPActions,
    external.ApplyExternalParametricGeometry,
 )

@@ -353,17 +265,15 @@ def register():
    bpy.types.Scene.BIMModelProperties = bpy.props.PointerProperty(type=prop.BIMModelProperties)
    bpy.types.Scene.BIMPolylineProperties = bpy.props.PointerProperty(type=prop.BIMPolylineProperties)
    bpy.types.Object.BIMArrayProperties = bpy.props.PointerProperty(type=prop.BIMArrayProperties)
+    bpy.types.Object.BIMStairProperties = bpy.props.PointerProperty(type=prop.BIMStairProperties)
    bpy.types.Object.BIMSverchokProperties = bpy.props.PointerProperty(type=prop.BIMSverchokProperties)
-    # Per-parametric-type ``BIM<Name>Properties`` PointerProperties — driven by
-    # ``tool.Parametric.EDIT_TYPES``; adding a registry entry is the single touchpoint.
-    tool.Parametric.register_object_properties(prop)
+    bpy.types.Object.BIMWindowProperties = bpy.props.PointerProperty(type=prop.BIMWindowProperties)
+    bpy.types.Object.BIMDoorProperties = bpy.props.PointerProperty(type=prop.BIMDoorProperties)
+    bpy.types.Object.BIMRailingProperties = bpy.props.PointerProperty(type=prop.BIMRailingProperties)
+    bpy.types.Object.BIMRoofProperties = bpy.props.PointerProperty(type=prop.BIMRoofProperties)
    bpy.types.Object.BIMExternalParametricGeometryProperties = bpy.props.PointerProperty(
        type=prop.BIMExternalParametricGeometryProperties
    )
-    bpy.types.Scene.BIMPreviewProperties = bpy.props.PointerProperty(type=prop.BIMPreviewProperties)
-    bpy.types.WindowManager.BIMParametricEditDialogPrefs = bpy.props.PointerProperty(
-        type=prop.BIMParametricEditDialogPrefs
-    )

    bpy.types.VIEW3D_MT_add.prepend(ui.add_menu)
    bpy.app.handlers.load_post.append(handler.load_post)
@@ -372,17 +282,6 @@ def register():


 def unregister():
-    # DecorationsHandler is installed lazily by bim.show_openings; tear it down
-    # (along with its persistent depsgraph / undo / redo / load cache handlers)
-    # before the rest of unregister so those handlers can't fire against
-    # half-unloaded module state.
-    opening.DecorationsHandler.uninstall()
-
-    # Network path overlays attach SpaceView3D draw handlers on toggle;
-    # uninstall here so addon disable / Blender shutdown doesn't leak them.
-    decorator.MEPSystemPathDecorator.uninstall()
-    decorator.WallSystemPathDecorator.uninstall()
-
    if not bpy.app.background:
        for tool_data in reversed(tools):
            bpy.utils.unregister_tool(tool_data.tool)
@@ -390,11 +289,13 @@ def unregister():
    del bpy.types.Scene.BIMModelProperties
    del bpy.types.Scene.BIMPolylineProperties
    del bpy.types.Object.BIMArrayProperties
+    del bpy.types.Object.BIMStairProperties
    del bpy.types.Object.BIMSverchokProperties
-    tool.Parametric.unregister_object_properties()
+    del bpy.types.Object.BIMWindowProperties
+    del bpy.types.Object.BIMDoorProperties
+    del bpy.types.Object.BIMRailingProperties
+    del bpy.types.Object.BIMRoofProperties
    del bpy.types.Object.BIMExternalParametricGeometryProperties
-    del bpy.types.Scene.BIMPreviewProperties
-    del bpy.types.WindowManager.BIMParametricEditDialogPrefs

    bpy.app.handlers.load_post.remove(handler.load_post)
    bpy.types.VIEW3D_MT_add.remove(ui.add_menu)
@@ -51,10 +51,6 @@ class AuthoringData:

    @classmethod
    def load(cls, ifc_element_type: Optional[str] = None):
-        # ``is_loaded`` is set first as a recursion guard: one of the data
-        # computations evaluates a PropertyGroup enum's ``items`` callback,
-        # which re-enters this method. Without the guard, load recurses to
-        # RecursionError.
        cls.is_loaded = True
        cls.props = tool.Model.get_model_props()
        cls.data["default_container"] = cls.default_container()
@@ -37,9 +37,7 @@ import bonsai.core.root
 import bonsai.tool as tool
 from bonsai.bim.module.drawing import gizmos as gizmo
 from bonsai.bim.module.drawing.gizmos import DimensionGizmoConfig
-from bonsai.bim.module.model.wall_offset_gizmos import WALL_OFFSET_GIZMO_CONFIGS
 from bonsai.bim.module.model.window import create_bm_box, create_bm_window
-from bonsai.bim.parametric_lifecycle import FeatureModifierEditMixin, PickTypeMixin

 if TYPE_CHECKING:
    from bonsai.bim.module.model.prop import BIMDoorProperties
@@ -568,58 +566,103 @@ class AddDoor(bpy.types.Operator, tool.Ifc.Operator):
        return {"FINISHED"}


-class _DoorEditMixin(FeatureModifierEditMixin):
-    """Type-specific hooks for door parametric-edit operators. Multi-object —
-    iterates ``tool.Blender.get_selected_objects()`` so a finish/cancel applies
-    to every selected door at once."""
-
-    pset_name = "BBIM_Door"
-
-    @classmethod
-    def _iter_targets(cls, context: bpy.types.Context) -> list[bpy.types.Object]:
-        return tool.Blender.get_selected_objects()
-
-    @classmethod
-    def _is_element_type(cls, element):
-        return tool.Parametric.is_door(element)
-
-    @classmethod
-    def _get_props(cls, obj: bpy.types.Object):
-        return tool.Model.get_door_props(obj)
-
-    @classmethod
-    def _update_modifier_representation(cls, obj: bpy.types.Object, context: bpy.types.Context) -> None:
-        update_door_modifier_representation(obj)
-
-
-class CancelEditingDoor(_DoorEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class CancelEditingDoor(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.cancel_editing_door"
    bl_label = "Cancel Editing Door on Selected Objects"
    bl_description = "Cancel editing and revert door parameters to their previous values"
    bl_options = {"REGISTER", "UNDO"}

-    def _execute(self, context: bpy.types.Context) -> set[str]:
-        return self._cancel_targets(context)
+    def cancel_editing_door_on_object(self, obj: bpy.types.Object) -> None:
+        element = tool.Ifc.get_entity(obj)
+        assert element
+        if not tool.Blender.Modifier.is_door(element):
+            return
+        props = tool.Model.get_door_props(obj)
+        data = json.loads(ifcopenshell.util.element.get_pset(element, "BBIM_Door", "Data"))
+        data.update(data.pop("lining_properties"))
+        data.update(data.pop("panel_properties"))
+
+        # restore previous settings since editing was canceled
+        props.set_props_kwargs_from_ifc_data(data)
+
+        body = ifcopenshell.util.representation.get_representation(element, "Model", "Body", "MODEL_VIEW")
+        core.switch_representation(
+            tool.Ifc,
+            tool.Geometry,
+            obj=obj,
+            representation=body,
+        )
+
+        props.is_editing = False
+
+    def _execute(self, context: bpy.types.Context) -> set[str]:  # noqa: ARG002
+        for obj in tool.Blender.get_selected_objects():
+            self.cancel_editing_door_on_object(obj)
+        return {"FINISHED"}


-class FinishEditingDoor(_DoorEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class FinishEditingDoor(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.finish_editing_door"
    bl_label = "Finish Editing Door on Selected Objects"
    bl_description = "Apply changes and finish editing door parameters"
    bl_options = {"REGISTER", "UNDO"}

-    def _execute(self, context: bpy.types.Context) -> set[str]:
-        return self._finish_targets(context)
+    def finish_editing_door_on_object(self, obj: bpy.types.Object) -> None:
+        element = tool.Ifc.get_entity(obj)
+        assert element
+        if not tool.Blender.Modifier.is_door(element):
+            return
+        props = tool.Model.get_door_props(obj)
+
+        door_data = props.get_general_kwargs(convert_to_project_units=True)
+        lining_props = props.get_lining_kwargs(convert_to_project_units=True)
+        panel_props = props.get_panel_kwargs(convert_to_project_units=True)
+
+        door_data["lining_properties"] = lining_props
+        door_data["panel_properties"] = panel_props
+
+        props.is_editing = False
+
+        update_door_modifier_representation(obj)
+        element_type = ifcopenshell.util.element.get_type(element)
+        if element_type:
+            tool.Model.mark_thumbnail_for_update(element_type)
+
+        pset = tool.Pset.get_element_pset(element, "BBIM_Door")
+        door_data = tool.Ifc.get().createIfcText(json.dumps(door_data, default=list))
+        ifcopenshell.api.pset.edit_pset(tool.Ifc.get(), pset=pset, properties={"Data": door_data})
+
+    def _execute(self, context: bpy.types.Context) -> set[str]:  # noqa: ARG002
+        for obj in tool.Blender.get_selected_objects():
+            self.finish_editing_door_on_object(obj)
+        return {"FINISHED"}


-class EnableEditingDoor(_DoorEditMixin, bpy.types.Operator, tool.Ifc.Operator):
+class EnableEditingDoor(bpy.types.Operator, tool.Ifc.Operator):
    bl_idname = "bim.enable_editing_door"
    bl_label = "Enable Editing Door on Selected Objects"
    bl_description = "Enter edit mode to modify door parameters interactively"
    bl_options = {"REGISTER", "UNDO"}

-    def _execute(self, context: bpy.types.Context) -> set[str]:
-        return self._enable_targets(context)
+    def edit_door_on_obj(self, obj: bpy.types.Object) -> None:
+        element = tool.Ifc.get_entity(obj)
+        assert element
+        if not tool.Blender.Modifier.is_door(element):
+            return
+        props = tool.Model.get_door_props(obj)
+        data = json.loads(ifcopenshell.util.element.get_pset(element, "BBIM_Door", "Data"))
+        data.update(data.pop("lining_properties"))
+        data.update(data.pop("panel_properties"))
+        data.update(tool.Model.get_constituents_props_data(element))
+
+        # required since we could load pset from .ifc and BIMDoorProperties won't be set
+        props.set_props_kwargs_from_ifc_data(data)
+        props.is_editing = True
+
+    def _execute(self, context: bpy.types.Context) -> set[str]:  # noqa: ARG002
+        for obj in tool.Blender.get_selected_objects():
+            self.edit_door_on_obj(obj)
+        return {"FINISHED"}


 class RemoveDoor(bpy.types.Operator, tool.Ifc.Operator):
@@ -630,7 +673,7 @@ class RemoveDoor(bpy.types.Operator, tool.Ifc.Operator):
    def remove_door_on_object(self, obj: bpy.types.Object) -> None:
        element = tool.Ifc.get_entity(obj)
        assert element
-        if not tool.Parametric.is_door(element):
+        if not tool.Blender.Modifier.is_door(element):
            return
        props = tool.Model.get_door_props(obj)
        props.is_editing = False
@@ -645,8 +688,12 @@ class RemoveDoor(bpy.types.Operator, tool.Ifc.Operator):


 class ToggleDoorSwing(bpy.types.Operator, tool.Ifc.Operator):
+    """Toggle door swing direction and optionally flip door geometry.
+
+    Shift+Click (when flip_geometry=True): Flip geometry only without changing door direction"""
+
    bl_idname = "bim.toggle_door_swing"
-    bl_label = "Change Door Swing"
+    bl_label = "Toggle Door Swing"
    bl_options = {"REGISTER", "UNDO"}

    flip_geometry: bpy.props.BoolProperty(name="Flip Geometry", default=False)
@@ -657,15 +704,6 @@ class ToggleDoorSwing(bpy.types.Operator, tool.Ifc.Operator):
        name="Skip Direction Change", default=False, options={"HIDDEN", "SKIP_SAVE"}
    )

-    @classmethod
-    def description(cls, context: bpy.types.Context, properties: bpy.types.OperatorProperties) -> str:
-        if properties.flip_geometry:
-            return (
-                "Swing the door from the opposite side of the wall. "
-                "Shift+click: mirror the door without changing which side it opens to"
-            )
-        return "Move the door hinge to the opposite side"
-
    def invoke(self, context: bpy.types.Context, event: bpy.types.Event) -> set[str]:
        self.skip_direction_change = event.shift
        return self.execute(context)
@@ -692,7 +730,7 @@ class ToggleDoorSwing(bpy.types.Operator, tool.Ifc.Operator):
        if not element:
            return {"CANCELLED"}

-        is_door = tool.Parametric.is_door(element)
+        is_door = tool.Blender.Modifier.is_door(element)

        if self.flip_geometry:
            tool.Geometry.flip_object(obj, self.flip_local_axes)
@@ -706,20 +744,20 @@ class ToggleDoorSwing(bpy.types.Operator, tool.Ifc.Operator):
        return {"FINISHED"}


-class PickDoorType(bpy.types.Operator, tool.Ifc.Operator, PickTypeMixin):
-    """Pick a door type from a popup menu."""
+class CycleDoorType(bpy.types.Operator, tool.Ifc.Operator, gizmo.CycleTypeMixin):
+    """Cycle through available door types. Shift+click to cycle in reverse."""

-    bl_idname = "bim.pick_door_type"
-    bl_label = "Pick Door Type"
+    bl_idname = "bim.cycle_door_type"
+    bl_label = "Cycle Door Type"
    bl_options = {"REGISTER", "UNDO"}

-    element_checker = tool.Parametric.is_door
-    props_getter = tool.Model.get_door_props
+    element_checker = "is_door"
+    props_getter = "get_door_props"
    type_literal = tool.Model.DoorType
    type_attr = "door_type"

    def _execute(self, context: bpy.types.Context) -> set[str]:
-        return self._pick_type(context)
+        return self._cycle_type(context)


 class GizmoDoorEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
@@ -732,7 +770,7 @@ class GizmoDoorEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
    enable_editing_operator = "bim.enable_editing_door"
    finish_editing_operator = "bim.finish_editing_door"
    cancel_editing_operator = "bim.cancel_editing_door"
-    pick_type_operator = "bim.pick_door_type"
+    cycle_type_operator = "bim.cycle_door_type"

    # Declarative dimension gizmo configuration with visibility and position
    # matrix_position lambdas replace the get_dimension_matrix_* methods
@@ -839,44 +877,14 @@ class GizmoDoorEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
                p.get_transom_window_center_z(),
            ),
        ),
-        *WALL_OFFSET_GIZMO_CONFIGS,
    ]

-    # Big quarter-arc hit shapes cover much of the door face — without a
-    # negative select_bias they would steal clicks from the small dimension
-    # and edit gizmos drawn on top of them.
-    SWING_ARC_SELECT_BIAS = -1000.0
-    swing_arc_operator = "bim.toggle_door_swing"
-
-    swing_arc_props = [
-        gizmo.SwingArcConfig(
-            name="primary",
-            visibility_condition=lambda p: p.is_editing and "SLIDING" not in p.door_type,
-            hinge_x=lambda p: (
-                p.overall_width if p.door_type.endswith("RIGHT") and "DOUBLE_DOOR" not in p.door_type else 0.0
-            ),
-            hinge_y=lambda p: p.lining_offset,
-            panel_width=lambda p: p.overall_width / 2 if "DOUBLE_DOOR" in p.door_type else p.overall_width,
-            x_mirror=lambda p: p.door_type.endswith("RIGHT") and "DOUBLE_DOOR" not in p.door_type,
-        ),
-        gizmo.SwingArcConfig(
-            name="secondary",
-            visibility_condition=lambda p: p.is_editing
-            and "DOUBLE_DOOR" in p.door_type
-            and "SLIDING" not in p.door_type,
-            hinge_x=lambda p: p.overall_width,
-            hinge_y=lambda p: p.lining_offset,
-            panel_width=lambda p: p.overall_width / 2,
-            x_mirror=lambda _p: True,
-        ),
-    ]
-
-    props_getter = tool.Model.get_door_props
+    props_getter = "get_door_props"
    gizmo_pref_name = "door"

    @classmethod
    def is_element_type(cls, element: ifcopenshell.entity_instance) -> bool:
-        return tool.Parametric.is_door(element)
+        return tool.Blender.Modifier.is_door(element)

    def get_icon_y_extent(self, props: "BIMDoorProperties") -> tuple[float, float]:
        """Get Y extents for door icon positioning.
@@ -894,20 +902,24 @@ class GizmoDoorEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
        return (furthest_y, furthest_y)

    def setup_element_specific_gizmos(self, context: bpy.types.Context) -> None:
-        """Create one (main, flip) swing-arc pair per ``swing_arc_props`` entry.
-
-        Stored as ``self.gizmo_swing_arc_<name>`` and ``self.gizmo_swing_arc_<name>_flip``
-        and pinned to ``SWING_ARC_SELECT_BIAS`` so other door gizmos win selection."""
+        """Create door-specific swing arc gizmos."""
        prefs = tool.Blender.get_addon_preferences()
-        main_color = prefs.decorator_color_special[:3]
-        flip_color = prefs.decorator_color_background[:3]
-        for cfg in self.swing_arc_props:
-            main = self.create_arc_gizmo(main_color, self.swing_arc_operator, flip_geometry=False)
-            flip = self.create_arc_gizmo(flip_color, self.swing_arc_operator, flip_geometry=True)
-            for gz in (main, flip):
-                gz.select_bias = self.SWING_ARC_SELECT_BIAS
-            setattr(self, f"gizmo_swing_arc_{cfg.name}", main)
-            setattr(self, f"gizmo_swing_arc_{cfg.name}_flip", flip)
+        inactive_color = prefs.decorator_color_background[:3]
+        special_color = prefs.decorator_color_special[:3]
+
+        self.gizmo_door_type = self.create_arc_gizmo(
+            special_color,
+            "bim.toggle_door_swing",
+            prop_path="BIMDoorProperties.door_type",
+            flip_geometry=False,
+        )
+        self.gizmo_flip_arc = self.create_arc_gizmo(
+            inactive_color,
+            "bim.toggle_door_swing",
+            prop_path="BIMDoorProperties.door_type",
+            flip_geometry=True,
+            flip_local_axes="XY",
+        )

    def _refresh_element_specific(
        self, context: bpy.types.Context, mw: Matrix, props: "BIMDoorProperties"  # noqa: ARG002
@@ -926,23 +938,29 @@ class GizmoDoorEdition(bpy.types.GizmoGroup, gizmo.BaseParametricGizmoGroup):
        self._update_view_dependent_dimensions(context, mw, props)

    def update_swing_gizmos(self, mw: Matrix, props: "BIMDoorProperties") -> None:
-        """Position each declared swing-arc pair per its config + props state."""
-        mirror_y = Matrix.Scale(-1, 4, (0, 1, 0))
-        for cfg in self.swing_arc_props:
-            main = getattr(self, f"gizmo_swing_arc_{cfg.name}")
-            flip = getattr(self, f"gizmo_swing_arc_{cfg.name}_flip")
-            show = cfg.visibility_condition(props)
-            main_visible = self.update_gizmo_visibility(main, show)
-            flip_visible = self.update_gizmo_visibility(flip, show)
-            if not (main_visible or flip_visible):
-                continue
-            x_flip = Matrix.Scale(-1, 4, (1, 0, 0)) if cfg.x_mirror(props) else Matrix.Identity(4)
-            transform = (
-                Matrix.Translation(V_(cfg.hinge_x(props), cfg.hinge_y(props), 0))
-                @ Matrix.Scale(cfg.panel_width(props), 4)
-                @ x_flip
-            )
-            if main_visible:
-                main.matrix_basis = mw @ transform
-            if flip_visible:
-                flip.matrix_basis = mw @ transform @ mirror_y
+        """Update swing gizmo position and color based on editing state."""
+        prefs = tool.Blender.get_addon_preferences()
+        door_gizmo_prefs = prefs.gizmos.door
+
+        door_type_visible = self.update_gizmo_visibility(
+            self.gizmo_door_type, props.is_editing, door_gizmo_prefs.swing_arc
+        )
+        flip_arc_visible = self.update_gizmo_visibility(
+            self.gizmo_flip_arc, props.is_editing, door_gizmo_prefs.flip_arc
+        )
+
+        if not door_type_visible and not flip_arc_visible:
+            return
+
+        swing_x_offset = props.overall_width if "RIGHT" in props.door_type else 0.0
+        base_swing_transform = Matrix.Translation(V_(swing_x_offset, props.lining_offset, 0)) @ Matrix.Scale(
+            props.overall_width, 4
+        )
+
+        if door_type_visible:
+            self.gizmo_door_type.matrix_basis = mw @ base_swing_transform
+            self.gizmo_door_type.color = prefs.decorations_colour[:3]
+
+        if flip_arc_visible:
+            mirror_y = Matrix.Scale(-1, 4, (0, 1, 0))
+            self.gizmo_flip_arc.matrix_basis = mw @ base_swing_transform @ mirror_y
@@ -1,247 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026
-#
-# This file is part of Bonsai.
-#
-# Bonsai 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.
-#
-# Bonsai 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 Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-"""Generic single-click "Add Opening" gizmo for hosts (walls, slabs, roofs).
-
-One GizmoGroup serves every IFC host type that exposes ``HasOpenings``:
-parametric LAYER2 walls, any ``IfcSlab``, and any ``IfcRoof``. The poll
-guards host-host pairings so this gizmo never overlaps with the existing
-wall-join / extend-vertically gizmos. The positioner dispatches on element
-type — walls use axis-projection + camera-facing-Y math (which requires the
-parametric layer-set); slabs and roofs use a world-Z face bias driven by
-the void object's elevation against the host's bounding box."""
-
-import bpy
-from mathutils import Vector
-
-import bonsai.tool as tool
-from bonsai.bim.module.drawing import gizmos as gizmo
-from bonsai.bim.module.model.opening import is_filling_supported
-from bonsai.bim.module.model.wall import (
-    _get_wall_geom_cached,
-    _wall_camera_facing_icon_y,
-    _wall_gizmo_poll_gate,
-    _WallGeomCachedBillboardingMixin,
-)
-
-
-def is_supported_host(element) -> bool:
-    """Total predicate (None → False). Walls accept either a parametric
-    LAYER2 wall OR a fillet-corner wall (both expose a usable axis +
-    layer-set for the anchor math); slabs and roofs only need the bound
-    box so any IfcSlab / IfcRoof qualifies regardless of parametric
-    modifier state."""
-    if element is None:
-        return False
-    return tool.Parametric.is_path_connectable_wall(element) or element.is_a("IfcSlab") or element.is_a("IfcRoof")
-
-
-def is_supported_filling_or_opening(element) -> bool:
-    """Total predicate for the add-opening gizmo poll. ``None`` (raw Blender
-    mesh) is accepted because the operator converts unclassified meshes
-    into ``IfcOpeningElement`` instances. ``IfcOpeningElement`` is accepted
-    because reassigning an existing opening to a new host is a legal path
-    through the operator. Otherwise defer to the generator's own
-    supported-filling predicate."""
-    if element is None:
-        return True
-    if element.is_a("IfcOpeningElement"):
-        return True
-    return is_filling_supported(element)
-
-
-def _resolve_active_host(context: bpy.types.Context, n_selected: int):
-    """Shared poll prologue: gizmo gate + selection cardinality + active-in-
-    selected + IFC entity lookup + supported-host predicate. Returns the
-    active element on success, ``None`` on any failure — callers chain their
-    feature-specific checks past the early-return."""
-    if not _wall_gizmo_poll_gate(context):
-        return None
-    selected = tool.Blender.get_selected_objects()
-    if len(selected) != n_selected:
-        return None
-    active = context.active_object
-    if active is None or active not in selected:
-        return None
-    element = tool.Ifc.get_entity(active)
-    if not element or not is_supported_host(element):
-        return None
-    return element
-
-
-class GizmoHostAddOpening(bpy.types.GizmoGroup, _WallGeomCachedBillboardingMixin):
-    """Activates when exactly two objects are selected and one is a fillable
-    host (wall / slab / roof) while the other is a valid filling (door /
-    window / existing opening, or a plain Blender mesh).
-
-    Selection-order independent: the host role is identified by class, not
-    by active state. The "+" icon anchors on the host's surface regardless
-    of which object was clicked first. The dispatched ``bim.add_opening``
-    operator also handles either order.
-
-    Per-frame positioning keeps the icon facing the camera as the viewport
-    orbits."""
-
-    bl_idname = "OBJECT_GGT_bim_host_add_opening"
-    bl_label = "Host Add Opening Gizmo"
-    bl_space_type = "VIEW_3D"
-    bl_region_type = "WINDOW"
-    bl_options = {"3D", "PERSISTENT"}
-
-    @classmethod
-    def poll(cls, context: bpy.types.Context) -> bool:
-        if not _wall_gizmo_poll_gate(context):
-            return False
-        selected = list(tool.Blender.get_selected_objects())
-        if len(selected) != 2:
-            return False
-        active = context.active_object
-        if active is None or active not in selected:
-            return False
-        a_element = tool.Ifc.get_entity(selected[0])
-        b_element = tool.Ifc.get_entity(selected[1])
-        return cls._is_apply_opening_pair(a_element, b_element) or cls._is_apply_opening_pair(b_element, a_element)
-
-    @staticmethod
-    def _is_apply_opening_pair(host_element, filling_element) -> bool:
-        """``host_element`` qualifies as a fillable host AND ``filling_element``
-        qualifies as a filling. Used twice with the operands swapped so the
-        gizmo polls true regardless of which of the two selected objects is
-        active."""
-        if not is_supported_host(host_element):
-            return False
-        if not hasattr(host_element, "HasOpenings"):
-            return False
-        return is_supported_filling_or_opening(filling_element)
-
-    def setup(self, context: bpy.types.Context) -> None:
-        default_color, highlight_color = self.get_decoration_colors()
-        self.add_opening_icon = self.setup_icon_gizmo(
-            "VIEW3D_GT_add_opening", default_color, highlight_color, "bim.add_opening"
-        )
-
-    def position_gizmos(self, context: bpy.types.Context) -> None:
-        selected = list(tool.Blender.get_selected_objects())
-        if len(selected) != 2:
-            return
-        a, b = selected[0], selected[1]
-        a_element = tool.Ifc.get_entity(a)
-        b_element = tool.Ifc.get_entity(b)
-        if is_supported_host(a_element):
-            host_obj, host_element, other = a, a_element, b
-        elif is_supported_host(b_element):
-            host_obj, host_element, other = b, b_element, a
-        else:
-            return
-
-        if tool.Parametric.is_path_connectable_wall(host_element):
-            world_pos = wall_anchor(context, self, host_obj, other)
-        else:
-            world_pos = layer3_anchor(host_obj, other)
-        if world_pos is None:
-            return
-        self.add_opening_icon.matrix_basis = gizmo.billboarded_at(world_pos, gizmo.get_billboard_rotation(context))
-
-
-def wall_anchor(
-    context: bpy.types.Context, group: bpy.types.GizmoGroup, wall_obj: bpy.types.Object, other: bpy.types.Object
-) -> Vector | None:
-    """World-space anchor for the add-opening icon on a wall host: void origin
-    projected onto the wall reference-line X (clamped to wall extents), lifted to
-    the camera-facing wall-local Y."""
-    geom = _get_wall_geom_cached(group, wall_obj)
-    if not geom:
-        return None
-    mw = wall_obj.matrix_world
-    wall_local = mw.inverted() @ other.matrix_world.translation
-    local_x = max(geom["anchor_x"], min(wall_local.x, geom["anchor_x"] + geom["length"]))
-    icon_y = _wall_camera_facing_icon_y(context, mw, geom)
-    base_world = mw @ Vector((local_x, icon_y, 0.0))
-    top_world = mw @ Vector((local_x, icon_y, geom["height"] + gizmo.BaseParametricGizmoGroup.ICON_Z_OFFSET))
-    return gizmo.BaseParametricGizmoGroup.pick_visible_anchor(context, base_world, top_world)
-
-
-def layer3_anchor(host_obj: bpy.types.Object, other: bpy.types.Object) -> Vector:
-    """World-space anchor for the add-opening icon on a LAYER3 host (slab / roof):
-    void's world XY, lifted just above the host's top face. Predictable height
-    regardless of where the void sits vertically — clicking the icon places the
-    opening at the void's XY, and the operator handles the actual cut depth."""
-    bbox = tool.Blender.get_object_world_bounding_box(host_obj)
-    anchor_xy = other.matrix_world.translation.xy
-    top_z = bbox["max_z"] + gizmo.BaseParametricGizmoGroup.ICON_Z_OFFSET
-    return Vector((anchor_xy.x, anchor_xy.y, top_z))
-
-
-def host_toggle_anchor(host_obj: bpy.types.Object) -> Vector:
-    """Object origin XY, lifted just above the topmost mesh vertex. Tracks
-    the parametric origin (useful reference even when the mesh extends
-    asymmetrically) and the visible top face (stays clear of sloped or
-    stepped bodies)."""
-    origin = host_obj.matrix_world.translation
-    top_z = tool.Blender.get_object_world_bounding_box(host_obj)["max_z"] + gizmo.BaseParametricGizmoGroup.ICON_Z_OFFSET
-    return Vector((origin.x, origin.y, top_z))
-
-
-class GizmoHostToggleOpenings(bpy.types.GizmoGroup, _WallGeomCachedBillboardingMixin):
-    """Fallback toggle-openings icon for hosts that lack their own
-    parametric-edit toolbar — slabs today, plus any foreign-authored
-    IfcRoof that carries no BBIM_Roof pset (so ``GizmoRoofEdition`` doesn't
-    poll for it). Walls and parametric roofs already render an idle-row
-    toggle next to the pen and are excluded from this poll.
-
-    When slab parametric-edit lands the slab branch will pen-row-handle
-    its own toggle; updating the exclusion predicate here is the only
-    migration step needed."""
-
-    bl_idname = "OBJECT_GGT_bim_host_toggle_openings"
-    bl_label = "Host Toggle Openings Gizmo"
-    bl_space_type = "VIEW_3D"
-    bl_region_type = "WINDOW"
-    bl_options = {"3D", "PERSISTENT"}
-
-    @classmethod
-    def poll(cls, context: bpy.types.Context) -> bool:
-        element = _resolve_active_host(context, n_selected=1)
-        if element is None:
-            return False
-        if not tool.Geometry.has_openings(element):
-            return False
-        # Skip when a per-feature parametric-edit gizmo already surfaces
-        # an idle-row toggle for this element — walls and parametric roofs
-        # both render their own toggle in the pen row.
-        if tool.Parametric.is_path_connectable_wall(element):
-            return False
-        if tool.Parametric.is_roof(element):
-            return False
-        return True
-
-    def setup(self, context: bpy.types.Context) -> None:
-        default_color, highlight_color = self.get_decoration_colors()
-        self.toggle_openings_icon = self.setup_icon_gizmo(
-            "VIEW3D_GT_add_opening", default_color, highlight_color, "bim.toggle_host_openings"
-        )
-
-    def position_gizmos(self, context: bpy.types.Context) -> None:
-        host_obj = context.active_object
-        if not host_obj:
-            return
-        self.toggle_openings_icon.matrix_basis = gizmo.billboarded_at(
-            host_toggle_anchor(host_obj), gizmo.get_billboard_rotation(context)
-        )
@@ -1,444 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026
-#
-# This file is part of Bonsai.
-#
-# Bonsai 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.
-#
-# Bonsai 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 Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-"""Bend-preview lifecycle for MEP segment joins.
-
-Holds the four lifecycle operators (Enable / Finish / Cancel /
-EnableFromBend) and the ``GizmoBendPreview`` group that surfaces the
-tunable dimensions and validate/cancel icons during preview. Draft state
-lives at ``Scene.BIMPreviewProperties.bend`` per CLAUDE.md §2.9 (Scene
-for cross-element previews).
-
-The geometry math (``compute_bend_preview_polylines``,
-``_bend_profile_cross_section``, ``_sweep_profile_along_polyline``)
-stays in ``mep.py`` because the commit operator ``MEPAddBend`` reuses
-it; this module imports the polyline helper for per-frame gizmo
-positioning. The GPU lines themselves are drawn by
-``decorator.BendPreviewDecorator``, kept in ``decorator.py`` with its
-sibling decorators."""
-
-from typing import ClassVar
-
-import bpy
-import ifcopenshell.util.element
-import ifcopenshell.util.unit
-from mathutils import Matrix, Vector
-
-import bonsai.tool as tool
-from bonsai.bim.module.drawing import gizmos as gizmo
-from bonsai.bim.module.model import preview_base
-from bonsai.bim.module.model.mep import (
-    _is_bend_fitting,
-    _n_mep_selected,
-    cached_compute_bend_preview_polylines,
-    segments_are_parallel,
-    validate_bend_preconditions,
-)
-
-
-class EnableBendPreview(bpy.types.Operator):
-    """Enter bend-preview mode for two selected MEP segments. Populates
-    scene.BIMPreviewProperties.bend with segment IFC ids and default
-    start_length / end_length / radius; no IFC mutation until finish."""
-
-    bl_idname = "bim.enable_bend_preview"
-    bl_label = "Enter Bend Preview"
-    bl_description = "Begin tuning bend parameters before committing the bend"
-    bl_options = {"REGISTER", "UNDO"}
-
-    @classmethod
-    def poll(cls, context):
-        if not _n_mep_selected(2):
-            cls.poll_message_set("Select exactly 2 MEP segments to bend.")
-            return False
-        return True
-
-    def execute(self, context):
-        selected = tool.Blender.get_selected_objects()
-        active = context.active_object
-        if active is None or active not in selected:
-            self.report({"ERROR"}, "Active object must be one of the selected MEP segments.")
-            return {"CANCELLED"}
-        other = next((o for o in selected if o is not active), None)
-        if other is None:
-            self.report({"ERROR"}, "Two MEP segments must be selected.")
-            return {"CANCELLED"}
-        active_element = tool.Ifc.get_entity(active)
-        other_element = tool.Ifc.get_entity(other)
-        if active_element is None or other_element is None:
-            self.report({"ERROR"}, "Both selected objects must be IFC elements.")
-            return {"CANCELLED"}
-        if segments_are_parallel(active, other):
-            self.report({"ERROR"}, "Bend preview is for non-parallel segments only.")
-            return {"CANCELLED"}
-
-        # Pre-check the same preconditions MEPAddBend enforces so the user
-        # sees the rejection here rather than after tuning a doomed preview.
-        precondition_error = validate_bend_preconditions(active_element, other_element)
-        if precondition_error is not None:
-            self.report({"ERROR"}, precondition_error)
-            return {"CANCELLED"}
-
-        preview_base.sync_uncommitted_moves([active, other])
-
-        props = preview_base.get_preview_props(context, "bend")
-        # Auto-cancel any prior preview so re-clicking join on a different
-        # pair doesn't silently commit the previous tuning.
-        if props is not None and props.is_active:
-            bpy.ops.bim.cancel_bend_preview()
-
-        props.start_segment_id = active_element.id()
-        props.end_segment_id = other_element.id()
-        props.start_length = 0.1
-        props.end_length = 0.1
-        props.radius = 0.2
-        props.is_active = True
-        return {"FINISHED"}
-
-
-class FinishBendPreview(bpy.types.Operator):
-    """Commit the previewed bend with the tuned parameters and exit preview.
-
-    Preview state survives a failed commit so the user can re-tune without
-    re-selecting."""
-
-    bl_idname = "bim.finish_bend_preview"
-    bl_label = "Apply Bend"
-    bl_description = "Commit the bend with the previewed parameters"
-    bl_options = {"REGISTER", "UNDO"}
-
-    def execute(self, context):
-        return preview_base.commit_preview(
-            self,
-            context,
-            "bend",
-            "mep_add_bend",
-            ("start_segment_id", "end_segment_id", "start_length", "end_length", "radius", "editing_bend_id"),
-        )
-
-
-class CancelBendPreview(bpy.types.Operator):
-    """Exit bend preview without committing."""
-
-    bl_idname = "bim.cancel_bend_preview"
-    bl_label = "Cancel Bend"
-    bl_description = "Discard the previewed bend"
-    bl_options = {"REGISTER", "UNDO"}
-
-    def execute(self, context):
-        if context.screen is None:
-            return {"CANCELLED"}
-        props = preview_base.get_preview_props(context, "bend")
-        if props is None or not props.is_active:
-            return {"CANCELLED"}
-        preview_base.clear_preview_state(props)
-        return {"FINISHED"}
-
-
-class EnableBendPreviewFromBend(bpy.types.Operator):
-    """Re-open the bend preview on an existing bend fitting.
-
-    Resolves the two connected segments via the bend's ports +
-    ``IfcRelConnectsPorts``, reads parametric values back from the bend's
-    ``BBIM_Fitting`` pset, and flags the preview so committing replaces
-    the existing bend in place."""
-
-    bl_idname = "bim.enable_bend_preview_from_bend"
-    bl_label = "Edit Bend"
-    bl_description = "Re-open the bend preview to retune an existing bend"
-    bl_options = {"REGISTER", "UNDO"}
-
-    @classmethod
-    def poll(cls, context):
-        active = context.active_object
-        if active is None:
-            cls.poll_message_set("No active object.")
-            return False
-        element = tool.Ifc.get_entity(active)
-        if element is None or not _is_bend_fitting(element):
-            cls.poll_message_set("Active object must be a bend fitting.")
-            return False
-        return True
-
-    def execute(self, context):
-        active = context.active_object
-        bend_element = tool.Ifc.get_entity(active)
-        if bend_element is None or not _is_bend_fitting(bend_element):
-            self.report({"ERROR"}, "Active object is not a bend fitting.")
-            return {"CANCELLED"}
-
-        connected_segments: list = []
-        for port in tool.System.get_ports(bend_element):
-            connected_port = tool.System.get_connected_port(port)
-            if connected_port is None:
-                continue
-            related = tool.System.get_port_relating_element(connected_port)
-            if related is not None and related.is_a("IfcFlowSegment") and related not in connected_segments:
-                connected_segments.append(related)
-
-        if len(connected_segments) != 2:
-            self.report(
-                {"ERROR"},
-                f"Bend has {len(connected_segments)} connected segments; need exactly 2 to re-edit.",
-            )
-            return {"CANCELLED"}
-
-        # Read parametric values from the bend type's BBIM_Fitting pset. The
-        # type carries the canonical parameters; querying the occurrence
-        # would force a get_type round-trip and miss user-edited types.
-        bend_type = ifcopenshell.util.element.get_type(bend_element)
-        if bend_type is None:
-            self.report({"ERROR"}, "Bend fitting has no type to read parameters from.")
-            return {"CANCELLED"}
-        bend_type_obj = tool.Ifc.get_object(bend_type)
-        if bend_type_obj is None:
-            self.report({"ERROR"}, "Bend type has no Blender object — cannot read pset.")
-            return {"CANCELLED"}
-        bbim = tool.Model.get_modeling_bbim_pset_data(bend_type_obj, "BBIM_Fitting")
-        if bbim is None:
-            self.report({"ERROR"}, "Bend fitting has no BBIM_Fitting pset — not a parametric bend.")
-            return {"CANCELLED"}
-        data = bbim.get("data_dict", {})
-
-        props = preview_base.get_preview_props(context, "bend")
-        if props is not None and props.is_active:
-            bpy.ops.bim.cancel_bend_preview()
-
-        # Segment order is load-bearing: the bend's lateral sign and z-axis
-        # flip are derived from which segment is "start" vs "end". Re-edit
-        # must reuse the same pairing as the original create so the recreate
-        # lands at the same orientation.
-        start_segment, end_segment = connected_segments
-        props.start_segment_id = start_segment.id()
-        props.end_segment_id = end_segment.id()
-        # Pset values are in IFC native units; scene units come from si_conversion.
-        si_conversion = ifcopenshell.util.unit.calculate_unit_scale(tool.Ifc.get())
-        props.start_length = float(data.get("start_length", 0.1)) * si_conversion
-        props.end_length = float(data.get("end_length", 0.1)) * si_conversion
-        props.radius = float(data.get("radius", 0.2)) * si_conversion
-        props.editing_bend_id = bend_element.id()
-        props.is_active = True
-        return {"FINISHED"}
-
-
-def _bend_preview_segments(context):
-    """Resolve the two segment objects from the scene-level preview props.
-
-    Re-resolves by IFC id each frame so undo / file reload during preview
-    never dangles a stale bpy reference."""
-    props = context.scene.BIMPreviewProperties.bend
-    ifc_file = tool.Ifc.get()
-    if ifc_file is None or not props.is_active:
-        return None, None
-    try:
-        start_element = ifc_file.by_id(props.start_segment_id)
-        end_element = ifc_file.by_id(props.end_segment_id)
-    except Exception:
-        return None, None
-    start_obj = tool.Ifc.get_object(start_element) if start_element else None
-    end_obj = tool.Ifc.get_object(end_element) if end_element else None
-    return start_obj, end_obj
-
-
-def _gizmo_x_matrix(location: Vector, x_direction: Vector) -> Matrix:
-    """Build a 4x4 matrix placing a gizmo at ``location`` with its local +X
-    axis aligned to ``x_direction`` in world space. ``BIM_GT_gizmo_dimension``
-    draws + drags along local +X by convention."""
-    x = x_direction.normalized()
-    seed = Vector((0, 0, 1)) if abs(x.z) < 0.9 else Vector((1, 0, 0))
-    y = (seed - x * seed.dot(x)).normalized()
-    z = x.cross(y)
-    mat = Matrix.Identity(4)
-    mat[0][:3] = (x.x, y.x, z.x)
-    mat[1][:3] = (x.y, y.y, z.y)
-    mat[2][:3] = (x.z, y.z, z.z)
-    mat.translation = location
-    return mat
-
-
-class GizmoBendPreview(bpy.types.GizmoGroup):
-    """Interactive gizmo group for the bend preview flow.
-
-    Three dimension widgets drag start_length / end_length / radius; two
-    icon gizmos commit or cancel. When the geometry is degenerate the
-    dimensions and validate hide but cancel stays visible so the user
-    always has an exit."""
-
-    bl_idname = "OBJECT_GGT_bim_bend_preview"
-    bl_label = "Bend Preview Gizmos"
-    bl_space_type = "VIEW_3D"
-    bl_region_type = "WINDOW"
-    bl_options = {"3D", "PERSISTENT"}
-
-    ICON_SCALE: ClassVar[float] = 0.375
-    ICON_SPACING_X: ClassVar[float] = 0.4
-    ICON_Z_OFFSET: ClassVar[float] = 1.5
-
-    @classmethod
-    def poll(cls, context):
-        preview = getattr(context.scene, "BIMPreviewProperties", None)
-        props = preview.bend if preview is not None else None
-        if props is None or not props.is_active:
-            return False
-        if not tool.Blender.are_viewport_gizmos_enabled():
-            return False
-        ifc_file = tool.Ifc.get()
-        if ifc_file is None:
-            return False
-        try:
-            ifc_file.by_id(props.start_segment_id)
-            ifc_file.by_id(props.end_segment_id)
-        except (RuntimeError, KeyError):
-            return False
-        return True
-
-    def setup(self, context):
-        prefs = tool.Blender.get_addon_preferences()
-        default_color = tuple(prefs.decorations_colour[:3])
-        highlight_color = tuple(prefs.decorator_color_selected[:3])
-
-        _props = preview_base.make_props_callback("bend")
-
-        def setup_dimension(attr: str, prop_name: str, invert_delta: bool = False) -> bpy.types.Gizmo:
-            gz = self.gizmos.new("BIM_GT_gizmo_dimension")
-            gz.move_get_cb = preview_base.make_dim_getter(_props, attr)
-            gz.move_set_cb = preview_base.make_dim_setter(_props, attr)
-            gz.axis = Vector((1, 0, 0))
-            gz.invert_delta = invert_delta
-            gz.delta_scale = 1.0
-            gz.prop_name = prop_name
-            gz.gizmo_group = self
-            gz.color = default_color
-            gz.color_highlight = highlight_color
-            gz.alpha = 1.0
-            gz.use_draw_modal = True
-            gz.use_draw_scale = False
-            gz.text_offset_sign = 1
-            gz.text_alignment = gizmo.TextAlignment.CENTER
-            gz.show_start_arrow = False
-            gz.show_end_arrow = True
-            gz.show_extension_lines = False
-            gz.text_formatter = None
-            return gz
-
-        self.start_dim = setup_dimension("start_length", "Start Length")
-        self.end_dim = setup_dimension("end_length", "End Length")
-        self.radius_dim = setup_dimension("radius", "Radius")
-
-        from bonsai.bim.module.drawing.gizmos import BaseParametricGizmoGroup
-
-        self.validate_icon = self.gizmos.new("VIEW3D_GT_validate")
-        self.validate_icon.use_draw_scale = False
-        self.validate_icon.color = BaseParametricGizmoGroup.COLOR_GREEN
-        self.validate_icon.color_highlight = highlight_color
-        self.validate_icon.target_set_operator("bim.finish_bend_preview")
-
-        self.cancel_icon = self.gizmos.new("VIEW3D_GT_cancel")
-        self.cancel_icon.use_draw_scale = False
-        self.cancel_icon.color = BaseParametricGizmoGroup.COLOR_RED
-        self.cancel_icon.color_highlight = highlight_color
-        self.cancel_icon.target_set_operator("bim.cancel_bend_preview")
-
-    def refresh(self, context):
-        self._position_gizmos(context)
-
-    def draw_prepare(self, context):
-        self._position_gizmos(context)
-
-    def _position_gizmos(self, context):
-        """Place gizmos at the bend intersection using the current scene
-        props. Cancel stays visible on degenerate geometry so the user
-        always has an exit; the other widgets hide when there's no defined
-        tangent / arc to anchor them on."""
-        start_obj, end_obj = _bend_preview_segments(context)
-        if start_obj is None or end_obj is None:
-            for gz in (self.start_dim, self.end_dim, self.radius_dim, self.validate_icon, self.cancel_icon):
-                gz.hide = True
-            return
-
-        props = context.scene.BIMPreviewProperties.bend
-        preview = cached_compute_bend_preview_polylines(
-            start_obj, end_obj, props.start_length, props.end_length, props.radius
-        )
-        if not preview["valid"]:
-            for gz in (self.start_dim, self.end_dim, self.radius_dim, self.validate_icon):
-                gz.hide = True
-            self.cancel_icon.hide = False
-            axes = preview.get("invalid_axes") or []
-            if axes:
-                intersection_point = axes[0][1]
-                billboard_rot = gizmo.get_billboard_rotation(context)
-                anchor = intersection_point + Vector((0, 0, self.ICON_Z_OFFSET))
-                self.cancel_icon.matrix_basis = gizmo.billboarded_at(anchor, billboard_rot, scale=self.ICON_SCALE)
-            return
-
-        for gz in (self.start_dim, self.end_dim, self.radius_dim, self.validate_icon, self.cancel_icon):
-            gz.hide = False
-
-        leg_a_far, leg_a_end = preview["leg_a"]
-        leg_b_far, leg_b_end = preview["leg_b"]
-        toward_bend_a = (
-            (leg_a_end - leg_a_far).normalized() if (leg_a_end - leg_a_far).length > 1e-6 else Vector((0, 0, 1))
-        )
-        toward_bend_b = (
-            (leg_b_end - leg_b_far).normalized() if (leg_b_end - leg_b_far).length > 1e-6 else Vector((0, 0, 1))
-        )
-        leg_a_tangent = leg_a_end + toward_bend_a * props.start_length
-        leg_b_tangent = leg_b_end + toward_bend_b * props.end_length
-
-        # axis is set in world space every frame so the drag projection
-        # matches the visual regardless of either segment's matrix_world.
-        self.start_dim.matrix_basis = _gizmo_x_matrix(leg_a_tangent, -toward_bend_a)
-        self.start_dim.axis = -toward_bend_a
-        self.start_dim.set_dimension_length(props.start_length)
-        self.end_dim.matrix_basis = _gizmo_x_matrix(leg_b_tangent, -toward_bend_b)
-        self.end_dim.axis = -toward_bend_b
-        self.end_dim.set_dimension_length(props.end_length)
-
-        arc = preview["arc"]
-        if len(arc) >= 3:
-            mid = len(arc) // 2
-            chord_mid = (arc[0] + arc[-1]) * 0.5
-            toward_mid = arc[mid] - chord_mid
-            if toward_mid.length > 1e-6:
-                toward_mid = toward_mid.normalized()
-                half_chord = (arc[-1] - arc[0]).length * 0.5
-                center_dist = max(0.0, props.radius * props.radius - half_chord * half_chord) ** 0.5
-                arc_center = chord_mid - toward_mid * center_dist
-                radial_out = arc[mid] - arc_center
-                if radial_out.length > 1e-6:
-                    radial_out.normalize()
-                    inward = -radial_out
-                    self.radius_dim.matrix_basis = _gizmo_x_matrix(arc[mid], inward)
-                    self.radius_dim.axis = inward
-                    self.radius_dim.set_dimension_length(props.radius)
-                else:
-                    self.radius_dim.hide = True
-            else:
-                self.radius_dim.hide = True
-        else:
-            self.radius_dim.hide = True
-
-        billboard_rot = gizmo.get_billboard_rotation(context)
-        anchor_base = arc[len(arc) // 2] if arc else (leg_a_end + leg_b_end) * 0.5
-        anchor = anchor_base + Vector((0, 0, self.ICON_Z_OFFSET))
-        offset_x = billboard_rot @ Vector((self.ICON_SPACING_X, 0.0, 0.0))
-        self.validate_icon.matrix_basis = gizmo.billboarded_at(anchor, billboard_rot, scale=self.ICON_SCALE)
-        self.cancel_icon.matrix_basis = gizmo.billboarded_at(anchor + offset_x, billboard_rot, scale=self.ICON_SCALE)
@@ -15,8 +15,6 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was modified with the assistance of an AI coding tool.

 from collections.abc import Sequence
 from math import radians
@@ -43,211 +41,8 @@ from mathutils import Matrix, Vector

 import bonsai.core.geometry
 import bonsai.tool as tool
-from bonsai.bim import decorator_cache
 from bonsai.bim.module.drawing.decoration import DecoratorData

-# Multi-entry cache for the opening preview's dissolved-edges fallback.
-# Single-entry wouldn't fit: the draw handler iterates every active opening
-# per frame, each with its own mesh. Bumped wholesale on the shared
-# decorator-cache token (depsgraph / undo / redo / load), one slot per
-# (mesh.session_uid, angle_limit). Outlier vs. the per-object caches below —
-# consulted only on world-draw-data miss, so the global wipe rarely fires in
-# steady state and the simpler invalidation is enough.
-_dissolved_edges_cache: dict[
-    tuple[int, float],
-    tuple[list[Vector], list[tuple[int, int]]],
-] = {}
-_dissolved_edges_cache_token: int = -1
-
-
-def _get_cached_dissolved_edges(
-    mesh: bpy.types.Mesh,
-    angle_limit: float = radians(1.0),
-) -> tuple[list[Vector], list[tuple[int, int]]]:
-    global _dissolved_edges_cache_token
-    token = decorator_cache.get_decorator_cache_token()
-    if token != _dissolved_edges_cache_token:
-        _dissolved_edges_cache.clear()
-        _dissolved_edges_cache_token = token
-    key = (mesh.session_uid, angle_limit)
-    cached = _dissolved_edges_cache.get(key)
-    if cached is not None:
-        return cached
-    result = tool.Geometry.get_dissolved_edges(mesh, angle_limit=angle_limit)
-    _dissolved_edges_cache[key] = result
-    return result
-
-
-# Per-object epoch: bumped only when this specific object's transform or geometry
-# updates land in the depsgraph delta. Invalidation work scales with the number
-# of changed objects, not total scene size — moving one object leaves every
-# other entry valid. Bumped by the depsgraph handler below; cleared on
-# undo/redo/load alongside the cache dicts.
-_object_epochs: dict[int, int] = {}
-
-
-@bpy.app.handlers.persistent
-def _bump_object_epochs_for_decoration(*args) -> None:
-    # depsgraph_update_post is called as (scene, depsgraph) in 4.x but the
-    # *args signature follows decorator_cache's defensive idiom.
-    depsgraph = args[1] if len(args) >= 2 else None
-    if depsgraph is None or not hasattr(depsgraph, "updates"):
-        return
-    for u in depsgraph.updates:
-        if not isinstance(u.id, bpy.types.Object):
-            continue
-        if not (u.is_updated_geometry or u.is_updated_transform):
-            continue
-        # u.id is the evaluated COW copy; the cache keys are written from the
-        # original Object (read by the draw handler), and session_uid can
-        # differ across the COW boundary. Resolve to the original before keying.
-        original = getattr(u.id, "original", u.id)
-        if original is None:
-            continue
-        uid = original.session_uid
-        _object_epochs[uid] = _object_epochs.get(uid, 0) + 1
-
-
-@bpy.app.handlers.persistent
-def _clear_decoration_caches_globally(*args) -> None:
-    # Undo/redo/load: depsgraph deltas can't be trusted to describe the
-    # transition, so wipe every per-object cache state.
-    _object_epochs.clear()
-    _world_draw_data_cache.clear()
-    _batch_cache.clear()
-
-
-def _decoration_invalidation_hooks() -> tuple:
-    return (
-        bpy.app.handlers.undo_post,
-        bpy.app.handlers.redo_post,
-        bpy.app.handlers.load_post,
-    )
-
-
-def install_decoration_cache_handlers() -> None:
-    if _bump_object_epochs_for_decoration not in bpy.app.handlers.depsgraph_update_post:
-        bpy.app.handlers.depsgraph_update_post.append(_bump_object_epochs_for_decoration)
-    for hook in _decoration_invalidation_hooks():
-        if _clear_decoration_caches_globally not in hook:
-            hook.append(_clear_decoration_caches_globally)
-
-
-def uninstall_decoration_cache_handlers() -> None:
-    try:
-        bpy.app.handlers.depsgraph_update_post.remove(_bump_object_epochs_for_decoration)
-    except ValueError:
-        pass
-    for hook in _decoration_invalidation_hooks():
-        try:
-            hook.remove(_clear_decoration_caches_globally)
-        except ValueError:
-            pass
-
-
-# Per-object world-space draw payload: line_verts (dissolved or ios_edges-filtered),
-# verts (full mesh, indexed by loop_triangles), edges_indices, tris. Entries are
-# (epoch, payload) tuples; lookup compares epoch to _object_epochs[uid], so a
-# stale entry for an object that didn't change since the last build still hits.
-_world_draw_data_cache: dict[
-    int,
-    tuple[
-        int,
-        tuple[
-            list[tuple[float, float, float]],
-            list[tuple[float, float, float]],
-            list[tuple[int, int]],
-            list[tuple[int, ...]],
-        ],
-    ],
-] = {}
-
-
-def _get_cached_world_draw_data(
-    obj: bpy.types.Object,
-) -> tuple[
-    list[tuple[float, float, float]],
-    list[tuple[float, float, float]],
-    list[tuple[int, int]],
-    list[tuple[int, ...]],
-]:
-    uid = obj.session_uid
-    epoch = _object_epochs.get(uid, 0)
-    entry = _world_draw_data_cache.get(uid)
-    if entry is not None and entry[0] == epoch:
-        return entry[1]
-
-    mw = obj.matrix_world
-    verts = [tuple(mw @ v.co) for v in obj.data.vertices]
-    obj.data.calc_loop_triangles()
-    tris = [tuple(t.vertices) for t in obj.data.loop_triangles]
-
-    ios_edges_attribute = obj.data.attributes.get("ios_edges")
-    if ios_edges_attribute:
-        # Loader-curated edges: read the attribute aligned with bm.edges order.
-        bm = bmesh.new()
-        bm.from_mesh(obj.data)
-        edges_indices = [
-            tuple(v.index for v in e.verts) for i, e in enumerate(bm.edges) if ios_edges_attribute.data[i].value
-        ]
-        bm.free()
-        line_verts = verts
-    else:
-        dissolved, edges_indices = _get_cached_dissolved_edges(obj.data)
-        line_verts = [tuple(mw @ v) for v in dissolved]
-
-    result = (line_verts, verts, edges_indices, tris)
-    _world_draw_data_cache[uid] = (epoch, result)
-    return result
-
-
-# GPUBatch cache: skip per-frame batch_for_shader. Entries are (epoch, batch);
-# lookup compares epoch to _object_epochs[uid] so other objects' batches stay
-# alive when one object's depsgraph delta bumps only its own epoch. The cached
-# batches reference GPU-side buffers tied to Blender's built-in shaders, which
-# are themselves cached by name (gpu.shader.from_builtin returns the same
-# handle each call), so they stay drawable across frames.
-_batch_cache: dict[tuple[int, str], tuple[int, "gpu.types.GPUBatch"]] = {}
-
-# CAD hidden-line convention for the occluded back-pass: world-space dashes so
-# density stays coherent across zoom. Dash + gap = period; dash_width controls
-# the "on" portion.
-_DASH_PERIOD_METERS: float = 0.20
-_DASH_WIDTH_METERS: float = 0.10
-# Solid front pass is rendered wider than the dashed back pass so its halo
-# overpowers the dashed center on visible edges even when the WIRE-display
-# overlay biases the depth buffer at outline pixels.
-_DASH_LINE_WIDTH: float = 1.5
-_SOLID_LINE_WIDTH: float = 2.5
-# Per-iteration default line width used by every non-occlusion draw call in
-# this decorator's ``__call__``. Restored after each occlusion pair so the
-# next draw isn't silently inheriting the wider solid-pass override.
-_DEFAULT_LINE_WIDTH: float = 2.0
-
-
-def _get_cached_batch_or_none(cache_key: tuple[int, str]) -> "gpu.types.GPUBatch | None":
-    uid = cache_key[0]
-    epoch = _object_epochs.get(uid, 0)
-    entry = _batch_cache.get(cache_key)
-    if entry is not None and entry[0] == epoch:
-        return entry[1]
-    return None
-
-
-def _store_batch_in_cache(cache_key: tuple[int, str], batch: "gpu.types.GPUBatch") -> None:
-    uid = cache_key[0]
-    epoch = _object_epochs.get(uid, 0)
-    _batch_cache[cache_key] = (epoch, batch)
-
-
-def is_filling_supported(element) -> bool:
-    """True when Bonsai's opening generator can derive an opening from this
-    element. IFC's schema permits any IfcElement as a filling; Bonsai
-    currently supports only IfcDoor and IfcWindow because those are the
-    classes with OverallWidth/OverallHeight attributes (or their types'
-    ELEVATION_VIEW profiles) that the generator can consume."""
-    return element is not None and element.is_a() in ("IfcDoor", "IfcWindow")
-

 class FilledOpeningGenerator:
    def generate(
@@ -255,15 +50,9 @@ class FilledOpeningGenerator:
        filling_obj: bpy.types.Object,
        voided_obj: bpy.types.Object,
        target: Optional[Vector] = None,
-        preserve_placement: bool = False,
    ) -> Union[None, str]:
        """
        :param target: Target opening position. If ommited, cursor position is used.
-        :param preserve_placement: If True, keep ``filling_obj.matrix_world`` as-is
-            and skip the snap-to-wall-axis / rl1-rl2 Z-default logic. The opening
-            is still created at the filling's current world position. Useful
-            when the caller (e.g. the SHIFT-add-opening gizmo flow) has
-            already positioned the filling intentionally.
        :return: None if there was no errors, otherwise returns a string with error message.
        """
        props = tool.Model.get_model_props()
@@ -285,7 +74,7 @@ class FilledOpeningGenerator:
            should_set_z_level = False

        # Sometimes, the voided_obj may be an aggregate, which won't have any representation.
-        if not preserve_placement and voided_obj.data:
+        if voided_obj.data:
            raycast = voided_obj.closest_point_on_mesh(voided_obj.matrix_world.inverted() @ target, distance=0.01)
            if not raycast[0]:
                target = filling_obj.matrix_world.translation.copy()
@@ -418,16 +207,18 @@ class FilledOpeningGenerator:
                representation = tool.Geometry.get_representation_by_context(voided_element, context)
                assert representation

-                tool.Geometry.recut_host(voided_obj, representation)
+                bonsai.core.geometry.switch_representation(
+                    tool.Ifc,
+                    tool.Geometry,
+                    obj=voided_obj,
+                    representation=representation,
+                )

    def regenerate_from_type(self, usecase_path: str, ifc_file: ifcopenshell.file, settings: dict[str, Any]) -> None:
        relating_type = settings["relating_type"]

-        # Filling type-switch on an array of fillings fans out N host recuts —
-        # one per related object — without batching. Coalesce them.
-        with tool.Geometry.batch_host_recut():
-            for related_object in settings["related_objects"]:
-                self._regenerate_from_type(related_object)
+        for related_object in settings["related_objects"]:
+            self._regenerate_from_type(related_object)

    def _regenerate_from_type(self, related_object: ifcopenshell.entity_instance) -> None:
        filling = related_object
@@ -476,7 +267,12 @@ class FilledOpeningGenerator:
            representation = tool.Geometry.get_active_representation(voided_obj)
            if not representation:
                continue
-            tool.Geometry.recut_host(voided_obj, representation)
+            bonsai.core.geometry.switch_representation(
+                tool.Ifc,
+                tool.Geometry,
+                obj=voided_obj,
+                representation=representation,
+            )

    def generate_opening_from_filling(
        self,
@@ -611,31 +407,6 @@ class RecalculateFill(bpy.types.Operator, tool.Ifc.Operator):
        return context.selected_objects

    def _execute(self, context):
-        # N selected fillings × M voided host parts would fire N×M host recuts
-        # without batching. Coalesce per host.
-        with tool.Geometry.batch_host_recut():
-            return self._recalculate_fills(context)
-
-    def _recalculate_fills(self, context):
-        # Refresh each selected filling's mapped opening source before
-        # recutting the host. Dedup by source id covers the common shared-
-        # source case in one rewrite while leaving unrelated sibling sources
-        # untouched.
-        seen_source_ids: set[int] = set()
-        for obj in context.selected_objects:
-            element = tool.Ifc.get_entity(obj)
-            if not element or not element.FillsVoids:
-                continue
-            opening = element.FillsVoids[0].RelatingOpeningElement
-            body = tool.Geometry.get_body_representation(opening)
-            if body is None:
-                continue
-            source = tool.Geometry.resolve_mapped_representation(body)
-            if source.id() in seen_source_ids:
-                continue
-            seen_source_ids.add(source.id())
-            tool.Model.regenerate_filling_opening_body(element)
-
        for obj in context.selected_objects:
            element = tool.Ifc.get_entity(obj)
            if not element or not element.FillsVoids:
@@ -664,7 +435,12 @@ class RecalculateFill(bpy.types.Operator, tool.Ifc.Operator):
                if building_obj and building_obj.data:
                    representation = tool.Geometry.get_active_representation(building_obj)
                    if representation:
-                        tool.Geometry.recut_host(building_obj, representation)
+                        bonsai.core.geometry.switch_representation(
+                            tool.Ifc,
+                            tool.Geometry,
+                            obj=building_obj,
+                            representation=representation,
+                        )

        # Refresh cut decorator
        DecoratorData.cut_cache.clear()
@@ -782,29 +558,6 @@ class AddBoolean(Operator, tool.Ifc.Operator):
        tool.Root.reload_item_decorator()


-class ToggleHostOpenings(Operator, tool.Ifc.Operator):
-    bl_idname = "bim.toggle_host_openings"
-    bl_label = "Toggle Openings"
-    bl_description = "Show or hide opening fills (doors and windows) in the viewport\n\nHotkey: Alt+O"
-    bl_options = {"REGISTER", "UNDO"}
-
-    @classmethod
-    def poll(cls, context):
-        if not tool.Model.has_selected_ifc_objects():
-            cls.poll_message_set("No IFC objects selected.")
-            return False
-        return True
-
-    def _execute(self, context: bpy.types.Context) -> set[str]:
-        # Opening visibility is independent of host geometry — don't commit any
-        # active parametric edit; the user can keep editing the host.
-        if tool.Model.get_model_props().openings:
-            bpy.ops.bim.edit_openings(apply_all=True)
-        else:
-            bpy.ops.bim.show_openings()
-        return {"FINISHED"}
-
-
 class ShowOpenings(Operator, tool.Ifc.Operator):
    bl_idname = "bim.show_openings"
    bl_label = "Show Openings"
@@ -986,29 +739,27 @@ class EditOpenings(Operator, tool.Ifc.Operator):
        for opening_element in opening_elements:
            opening_obj = tool.Ifc.get_object(opening_element)

+            similar_openings = bonsai.core.geometry.get_similar_openings(tool.Ifc, opening_element)
+            similar_openings_building_objs = bonsai.core.geometry.get_similar_openings_building_objs(
+                tool.Ifc, similar_openings
+            )
+            building_objs.update(similar_openings_building_objs)
+
            if opening_obj:
-                opening_edited = tool.Ifc.is_edited(opening_obj)
-                opening_moved = tool.Ifc.is_moved(opening_obj)
-                # Sibling walls only need a viewport-level refresh when the
-                # opening's shape or placement actually changed — a pure
-                # show/hide toggle leaves them in their existing state.
-                if opening_edited or opening_moved:
-                    similar_openings = bonsai.core.geometry.get_similar_openings(tool.Ifc, opening_element)
-                    similar_openings_building_objs = bonsai.core.geometry.get_similar_openings_building_objs(
-                        tool.Ifc, similar_openings
-                    )
-                    building_objs.update(similar_openings_building_objs)
-                    if opening_edited:
-                        tool.Geometry.run_geometry_update_representation(obj=opening_obj)
-                    else:
-                        bonsai.core.geometry.edit_object_placement(
-                            tool.Ifc, tool.Geometry, tool.Surveyor, obj=opening_obj
-                        )
+                if tool.Ifc.is_edited(opening_obj):
+                    tool.Geometry.run_geometry_update_representation(obj=opening_obj)
+                    bonsai.core.geometry.edit_similar_opening_placement(
+                        tool.Geometry, opening_element, similar_openings
+                    )
+                elif tool.Ifc.is_moved(opening_obj):
+                    bonsai.core.geometry.edit_object_placement(tool.Ifc, tool.Geometry, tool.Surveyor, obj=opening_obj)
                    bonsai.core.geometry.edit_similar_opening_placement(
                        tool.Geometry, opening_element, similar_openings
                    )
-                    building_objs.update(self.get_all_building_objects_of_similar_openings(opening_element))

+                building_objs.update(
+                    self.get_all_building_objects_of_similar_openings(opening_element)
+                )  # NB this has nothing to do with clone similar_opening
                tool.Ifc.unlink(element=opening_element)
                if props.representation_obj == opening_obj:
                    props.representation_obj = None
@@ -1046,12 +797,6 @@ class CloneOpening(Operator, tool.Ifc.Operator):
        return True

    def _execute(self, context):
-        # The voided host may be an aggregate whose parts each get recut.
-        # Coalesce per host so a many-parts aggregate doesn't fan out.
-        with tool.Geometry.batch_host_recut():
-            return self._clone_opening(context)
-
-    def _clone_opening(self, context):
        # NOTE: Operator displayed in UI only with IfcOpeningElement being active.
        ifc_file = tool.Ifc.get()
        objects = bpy.context.selected_objects
@@ -1081,7 +826,12 @@ class CloneOpening(Operator, tool.Ifc.Operator):
                continue
            representation = tool.Geometry.get_active_representation(obj)
            assert representation
-            tool.Geometry.recut_host(obj, representation)
+            bonsai.core.geometry.switch_representation(
+                tool.Ifc,
+                tool.Geometry,
+                obj=obj,
+                representation=representation,
+            )

        return {"FINISHED"}

@@ -1191,6 +941,7 @@ class SelectBoolean(Operator):
        return {"FINISHED"}


+# TODO: merge with ProfileDecorator?
 class DecorationsHandler:
    installed = None

@@ -1200,7 +951,6 @@ class DecorationsHandler:
            cls.uninstall()
        handler = cls()
        cls.installed = SpaceView3D.draw_handler_add(handler, (context,), "WINDOW", "POST_VIEW")
-        install_decoration_cache_handlers()

    @classmethod
    def uninstall(cls):
@@ -1209,79 +959,15 @@ class DecorationsHandler:
        except ValueError:
            pass
        cls.installed = None
-        uninstall_decoration_cache_handlers()

-    def _get_or_build_batch(self, shader, shader_type, content_pos, indices=None, cache_key=None):
-        if cache_key is not None:
-            cached = _get_cached_batch_or_none(cache_key)
-            if cached is not None:
-                return cached
+    def draw_batch(self, shader_type, content_pos, color, indices=None):
        if not tool.Blender.validate_shader_batch_data(content_pos, indices):
-            return None
-        batch = batch_for_shader(shader, shader_type, {"pos": content_pos}, indices=indices)
-        if cache_key is not None:
-            _store_batch_in_cache(cache_key, batch)
-        return batch
-
-    def draw_batch(self, shader_type, content_pos, color, indices=None, cache_key=None):
-        shader = self.line_shader if shader_type == "LINES" else self.shader
-        batch = self._get_or_build_batch(shader, shader_type, content_pos, indices, cache_key=cache_key)
-        if batch is None:
            return
+        shader = self.line_shader if shader_type == "LINES" else self.shader
+        batch = batch_for_shader(shader, shader_type, {"pos": content_pos}, indices=indices)
        shader.uniform_float("color", color)
        batch.draw(shader)

-    def _draw_lines_with_occlusion(self, verts, color, edges_indices, cache_key=None):
-        # Two-pass CAD hidden-line convention. Both passes use POLYLINE_UNIFORM_COLOR.
-        #
-        # The solid front pass is rendered WIDER than the dashed back pass so it
-        # produces a halo around the line center, beyond the depth-bias zone that
-        # Blender's overlay engine writes when an opening is set to WIRE display.
-        # Without the width difference, the wire bias makes the center-pixel
-        # ``LESS_EQUAL`` comparison fail (line ends up slightly behind the biased
-        # wire depth) so the solid pass would lose to the dashed back pass even
-        # on visible edges. The halo gives the solid pass enough screen-space to
-        # overpower the dashed pattern visually.
-        #
-        # Dashed renders first at the standard width so the solid overlay's wider
-        # halo cleanly hides it on visible edges; on occluded edges the solid
-        # ``LESS_EQUAL`` pass fails against the wall depth and the dashed remains.
-        front_batch = self._get_or_build_batch(self.line_shader, "LINES", verts, edges_indices, cache_key=cache_key)
-        if front_batch is None:
-            return
-
-        dashed_cache_key = (cache_key[0], cache_key[1] + "_dashed") if cache_key is not None else None
-        dash_batch = None
-        if dashed_cache_key is not None:
-            dash_batch = _get_cached_batch_or_none(dashed_cache_key)
-        if dash_batch is None:
-            dash_verts, dash_edges = tool.Blender.build_dashed_line_segments(
-                verts, edges_indices, _DASH_PERIOD_METERS, _DASH_WIDTH_METERS
-            )
-            dash_batch = self._get_or_build_batch(self.line_shader, "LINES", dash_verts, dash_edges)
-            if dash_batch is not None and dashed_cache_key is not None:
-                _store_batch_in_cache(dashed_cache_key, dash_batch)
-
-        original_depth_test = gpu.state.depth_test_get()
-        front_color = list(color)
-        front_color[3] = 1.0
-        self.line_shader.uniform_float("color", front_color)
-
-        if dash_batch is not None:
-            self.line_shader.uniform_float("lineWidth", _DASH_LINE_WIDTH)
-            gpu.state.depth_test_set("ALWAYS")
-            dash_batch.draw(self.line_shader)
-
-        self.line_shader.uniform_float("lineWidth", _SOLID_LINE_WIDTH)
-        gpu.state.depth_test_set("LESS_EQUAL")
-        front_batch.draw(self.line_shader)
-
-        # Restore the per-iteration default set at the top of __call__ so
-        # subsequent draws (the HalfSpaceSolid arrow, future call-sites) are
-        # not silently affected by the front-pass width override.
-        self.line_shader.uniform_float("lineWidth", _DEFAULT_LINE_WIDTH)
-        gpu.state.depth_test_set(original_depth_test)
-
    def __call__(self, context):
        props = tool.Model.get_model_props()
        if not props.openings:
@@ -1315,7 +1001,7 @@ class DecorationsHandler:
            self.line_shader.bind()  # required to be able to change uniforms of the shader
            # POLYLINE_UNIFORM_COLOR specific uniforms
            self.line_shader.uniform_float("viewportSize", (context.region.width, context.region.height))
-            self.line_shader.uniform_float("lineWidth", _DEFAULT_LINE_WIDTH)
+            self.line_shader.uniform_float("lineWidth", 2.0)

            # general shader
            self.shader = gpu.shader.from_builtin("UNIFORM_COLOR")
@@ -1353,18 +1039,23 @@ class DecorationsHandler:
                self.draw_batch("LINES", verts, selected_elements_color, selected_edges)
                self.draw_batch("POINTS", unselected_vertices, unselected_elements_color)
                self.draw_batch("POINTS", selected_vertices, selected_elements_color)
-                tool.Blender.draw_bmesh_face_tris(bm, verts, transparent_color(special_elements_color), self.draw_batch)
            else:
-                line_verts, verts, edges_indices, tris = _get_cached_world_draw_data(obj)
+                bm = bmesh.new()
+                bm.from_mesh(obj.data)
+
+                verts = [tuple(obj.matrix_world @ v.co) for v in bm.verts]
+                if ios_edges_attribute := obj.data.attributes.get("ios_edges"):
+                    edges = [e for i, e in enumerate(bm.edges) if ios_edges_attribute.data[i].value]
+                else:
+                    edges = bm.edges
+                edges_indices = [tuple([v.index for v in e.verts]) for e in edges]
+
                color = selected_elements_color if obj in context.selected_objects else special_elements_color
-                self._draw_lines_with_occlusion(line_verts, color, edges_indices, cache_key=(obj.session_uid, "lines"))
-                self.draw_batch(
-                    "TRIS",
-                    verts,
-                    transparent_color(special_elements_color),
-                    tris,
-                    cache_key=(obj.session_uid, "tris"),
-                )
+                self.draw_batch("LINES", verts, color, edges_indices)
+
+            obj.data.calc_loop_triangles()
+            tris = [tuple(t.vertices) for t in obj.data.loop_triangles]
+            self.draw_batch("TRIS", verts, transparent_color(special_elements_color), tris)

            if "HalfSpaceSolid" in obj.name:
                # Arrow shape
@@ -1378,4 +1069,7 @@ class DecorationsHandler:
                ]
                edges = [(0, 1), (1, 2), (1, 3), (1, 4), (1, 5)]
                color = selected_elements_color if obj in context.selected_objects else special_elements_color
-                self._draw_lines_with_occlusion(verts, color, edges, cache_key=(obj.session_uid, "arrow"))
+                self.draw_batch("LINES", verts, color, edges)
+
+            if obj.mode != "EDIT":
+                bm.free()
@@ -75,7 +75,6 @@ class PolylineOperator:
        self.is_typing = False
        self.snap_angle = None
        self.snapping_points = []
-        self.unit_scale = 1.0
        self.instructions = {
            "Cycle Input": {"icons": True, "keys": ["EVENT_TAB"]},
            "Distance Input": {"icons": True, "keys": ["EVENT_D"]},
@@ -1,274 +0,0 @@
-# Bonsai - OpenBIM Blender Add-on
-# Copyright (C) 2026
-#
-# This file is part of Bonsai.
-#
-# Bonsai 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.
-#
-# Bonsai 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 Bonsai.  If not, see <http://www.gnu.org/licenses/>.
-#
-# This file was generated with the assistance of an AI coding tool.
-
-"""Shared helpers for Bonsai's parametric preview flows.
-
-Multiple Bonsai features follow the same Scene-level preview pattern:
-
-    Enable<X>Preview   — validates a selection, populates draft state on
-                         ``Scene.BIMPreviewProperties.<x>``, flips ``is_active``.
-    Gizmo<X>Preview    — polls on ``is_active``, surfaces tunable widgets +
-                         validate/cancel icons.
-    <X>PreviewDecorator — GPU lines drawn while ``is_active`` is True.
-    Finish<X>Preview   — direct ``bpy.ops.bim.<verb>(...)`` call with kwargs
-                         read off the draft state, then clears it.
-    Cancel<X>Preview   — pure state reset.
-
-The MEP bend and wall fillet flows are the two current callers. They write
-their Finish / Cancel operators directly, matching the convention used
-throughout the rest of ``bim/module/model/`` for operator-to-operator
-dispatch (explicit ``bpy.ops.bim.X(kwarg=value)`` at the call site, no
-string indirection). This module hosts the cross-cutting accessors only;
-no base class layer.
-
-The GPU draw-handler lifecycle for ``<X>PreviewDecorator`` lives on the
-feature-neutral ``tool.Blender.ViewportDecorator`` base, which every
-viewport decorator (preview or otherwise) inherits from."""
-
-from __future__ import annotations
-
-from collections.abc import Callable
-from typing import Any
-
-import bpy
-
-import bonsai.tool as tool
-
-# --- Props accessors ---------------------------------------------------------
-
-
-def get_preview_props(context: bpy.types.Context, attr: str):
-    """Resolve a child preview PropertyGroup under ``Scene.BIMPreviewProperties``.
-
-    Returns ``None`` if the umbrella isn't attached yet — true briefly
-    during addon register and during plug-out, so polls / draw callbacks
-    must defend against ``None`` rather than assuming the prop is always
-    available. Also tolerates contexts without a ``scene`` attribute
-    (test mocks built from ``SimpleNamespace``)."""
-    scene = getattr(context, "scene", None)
-    if scene is None:
-        return None
-    preview = getattr(scene, "BIMPreviewProperties", None)
-    return getattr(preview, attr, None) if preview is not None else None
-
-
-def is_preview_active(context: bpy.types.Context, attr: str) -> bool:
-    """``True`` while a specific preview is open. Used by sibling gizmo
-    polls to hide themselves so the preview is the only interactive
-    surface in the viewport (the bend / fillet preview groups take over
-    the same selection's icon stack)."""
-    props = get_preview_props(context, attr)
-    return bool(props is not None and props.is_active)
-
-
-def any_preview_active(context: bpy.types.Context) -> bool:
-    """``True`` if any registered preview is currently open. Sister gizmo
-    polls call this to hide themselves uniformly during ANY preview, so a
-    new preview registered in ``PREVIEW_CANCEL_OPS`` automatically gates
-    every parametric gizmo without each one growing a specific check."""
-    for attr, _op_name in PREVIEW_CANCEL_OPS:
-        if is_preview_active(context, attr):
-            return True
-    return False
-
-
-# --- Lazy closure factories --------------------------------------------------
-#
-# Used by preview gizmo groups when wiring ``BIM_GT_gizmo_dimension``'s
-# ``move_get_cb`` / ``move_set_cb`` callbacks. The closures re-resolve
-# ``bpy.context.scene`` per CALL rather than capturing it at setup() time
-# — the captured Scene's RNA struct can be freed on file open / undo, and
-# referencing a freed struct crashes Blender. Lazy lookup survives the
-# whole undo / reload lifecycle.
-
-
-def make_props_callback(attr: str) -> Callable[[], Any]:
-    """Return a zero-arg callable that lazily fetches the preview props.
-
-    Equivalent to ``getattr(bpy.context.scene.BIMPreviewProperties, attr)``
-    with full defensiveness against missing scene / missing umbrella."""
-
-    def _props():
-        scene = bpy.context.scene
-        preview = getattr(scene, "BIMPreviewProperties", None) if scene else None
-        return getattr(preview, attr, None) if preview is not None else None
-
-    return _props
-
-
-def make_dim_getter(props_callback: Callable[[], Any], field: str) -> Callable[[], float]:
-    """Factory for ``BIM_GT_gizmo_dimension.move_get_cb`` reading a single
-    FloatProperty off the live preview state. Returns ``0.0`` defensively
-    when the props are temporarily unavailable so the widget doesn't crash
-    Blender during plug-out / reload."""
-
-    def _get() -> float:
-        props = props_callback()
-        return getattr(props, field) if props is not None else 0.0
-
-    return _get
-
-
-def make_dim_setter(
-    props_callback: Callable[[], Any],
-    field: str,
-    min_value: float = 0.001,
-) -> Callable[[float], None]:
-    """Factory for ``BIM_GT_gizmo_dimension.move_set_cb`` writing a single
-    FloatProperty + tagging viewport areas for redraw so the GPU preview
-    decorator tracks the value live during drag. Clamps at ``min_value``
-    to match the FloatProperty's declared lower bound."""
-
-    def _set(value: float) -> None:
-        props = props_callback()
-        if props is None:
-            return
-        setattr(props, field, max(min_value, float(value)))
-        tool.Blender.update_all_viewports()
-
-    return _set
-
-
-# --- Shared Enable lifecycle helpers -----------------------------------------
-
-
-def sync_uncommitted_moves(objects: list) -> None:
-    """Push any Blender-side translation / rotation of ``objects`` back to
-    their IFC ``ObjectPlacement`` before a preview decorator starts reading
-    ``obj.matrix_world`` per frame.
-
-    Without this sync, a user who grabbed-moved an object but didn't commit
-    the move sees the live preview at the dragged position while the final
-    commit lands at the stale IFC position — a confusing "where did my
-    preview go?" experience. Both bend and fillet enable paths call this
-    on the relevant pair just before activating the preview."""
-    for obj in objects:
-        tool.Geometry.commit_placement_if_moved(obj, apply_scale=False)
-
-
-def clear_preview_state(props: bpy.types.PropertyGroup) -> None:
-    """Reset a preview PropertyGroup to its idle state on commit / cancel.
-
-    Sets ``is_active`` to False and zeros every ``IntProperty`` whose name
-    ends in ``_id`` (the entity-reference convention every preview follows).
-    Other fields are left at their last value — defaults are re-applied on
-    the next enable, so leaving them alone avoids a redundant write."""
-    props.is_active = False
-    for name, rna in props.bl_rna.properties.items():
-        if name.endswith("_id") and rna.type == "INT":
-            setattr(props, name, 0)
-
-
-# --- Standard Finish flow ----------------------------------------------------
-
-
-def commit_preview(
-    operator: bpy.types.Operator,
-    context: bpy.types.Context,
-    attr: str,
-    target_op_name: str,
-    kwarg_names: tuple[str, ...],
-) -> set[str]:
-    """Standard Finish-Preview dispatch: validate context + active preview,
-    read kwargs off the draft, call ``bpy.ops.bim.<target_op_name>(**kwargs)``,
-    and clear the preview on success.
-
-    The dispatched operator's own ``self.report({"ERROR"})`` paths are promoted
-    by ``bpy.ops`` to ``RuntimeError`` — catching it here surfaces the message
-    to the user via ``operator.report`` rather than leaving Blender's operator
-    state half-broken (which silently disables downstream gizmo polls).
-
-    Returns the dispatched operator's result set verbatim so callers can
-    pass it straight back from their own ``execute``."""
-    if context.screen is None:
-        return {"CANCELLED"}
-    props = get_preview_props(context, attr)
-    if props is None or not props.is_active:
-        return {"CANCELLED"}
-    if tool.Ifc.get() is None:
-        operator.report({"ERROR"}, "No IFC file loaded.")
-        return {"CANCELLED"}
-    kwargs = {name: getattr(props, name) for name in kwarg_names}
-    try:
-        result = getattr(bpy.ops.bim, target_op_name)(**kwargs)
-    except RuntimeError as exc:
-        operator.report({"ERROR"}, str(exc))
-        return {"CANCELLED"}
-    if "FINISHED" in result:
-        clear_preview_state(props)
-    return result
-
-
-# --- Esc dispatch ------------------------------------------------------------
-
-PREVIEW_CANCEL_OPS: tuple[tuple[str, str], ...] = (
-    ("bend", "cancel_bend_preview"),
-    ("wall_fillet", "cancel_wall_fillet_preview"),
-)
-"""Registry of ``(child PointerProperty on Scene.BIMPreviewProperties, bim
-operator name)`` consulted by the Esc handler. Adding a new preview means
-appending one tuple; the forward-compat test pins that every preview
-PropertyGroup with ``is_active`` has an entry here."""
-
-
-def try_cancel_active_preview(context: bpy.types.Context) -> bool:
-    """Cancel every registered preview that is currently active.
-
-    Returns ``True`` iff at least one preview was cancelled. Multiple
-    previews can be simultaneously active (e.g. a stale bend preview opened
-    just before the user starts a wall fillet) — one Esc must clear them
-    all rather than forcing the user to tap Esc once per preview.
-
-    Tags 3D viewports for redraw on success — the Esc keymap entry runs
-    outside a viewport mouse event so the gizmo poll wouldn't re-evaluate
-    until the next interaction without an explicit redraw."""
-    cancelled = False
-    for attr, op_name in PREVIEW_CANCEL_OPS:
-        if is_preview_active(context, attr):
-            getattr(bpy.ops.bim, op_name)()
-            cancelled = True
-    if cancelled:
-        tool.Blender.update_all_viewports(context)
-    return cancelled
-
-
-def discard_pending_previews(scene: bpy.types.Scene) -> None:
-    """Clear every active preview under ``Scene.BIMPreviewProperties`` so
-    saved preview state never resurfaces on file load.
-
-    Mirrors ``tool.Parametric.heal_stale_edit_flags`` for the object-level
-    parametric-edit lifecycle — except previews are *discarded* rather than
-    validated. A preview's only UI cue is its in-viewport widget; reloading
-    a ``.blend`` saved mid-preview restores the flag but not the surrounding
-    user attention, and a stuck ``is_active`` silently hides every sibling
-    gizmo poll gated on it.
-
-    Iterates ``PREVIEW_CANCEL_OPS`` so any preview registered for Esc
-    cancellation is automatically covered here too. Sets ``is_active``
-    directly rather than dispatching the cancel operator: load_post may
-    fire before ``bpy.context.screen`` is reattached, and the cancel
-    operators bail on ``context.screen is None``."""
-    preview = getattr(scene, "BIMPreviewProperties", None)
-    if preview is None:
-        return
-    for attr, _op_name in PREVIEW_CANCEL_OPS:
-        child = getattr(preview, attr, None)
-        if child is not None and getattr(child, "is_active", False):
-            child.is_active = False
--- a/Show More
+++ b/Show More
@@ -1 +1 @@
 .8.6
 .8.5