When assigning types, your preference of dynamic voids are now preserved.

src/blenderbim/blenderbim/tool/__init__.py

@@ -28,4 +28,5 @@ from blenderbim.tool.misc import Misc
 from blenderbim.tool.owner import Owner
 from blenderbim.tool.style import Style
 from blenderbim.tool.surveyor import Surveyor
+from blenderbim.tool.type import Type
 from blenderbim.tool.unit import Unit

src/blenderbim/blenderbim/tool/type.py

@@ -0,0 +1,53 @@
+# BlenderBIM Add-on - OpenBIM Blender Add-on
+# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
+#
+# This file is part of BlenderBIM Add-on.
+#
+# BlenderBIM Add-on is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# BlenderBIM Add-on is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with BlenderBIM Add-on.  If not, see <http://www.gnu.org/licenses/>.
+
+import ifcopenshell
+import blenderbim.core.tool
+import blenderbim.tool as tool
+import blenderbim.bim.helper
+
+
+class Type(blenderbim.core.tool.Type):
+    @classmethod
+    def disable_editing(cls, obj):
+        obj.BIMTypeProperties.is_editing_type = False
+
+    @classmethod
+    def get_any_representation(cls, element):
+        if element.is_a("IfcProduct") and element.Representation and element.Representation.Representations:
+            return element.Representation.Representations[0]
+        elif element.is_a("IfcTypeProduct") and element.RepresentationMaps:
+            return element.RepresentationMaps[0].MappedRepresentation
+
+    @classmethod
+    def get_body_representation(cls, element):
+        if element.is_a("IfcProduct") and element.Representation and element.Representation.Representations:
+            for representation in element.Representation.Representations:
+                if representation.ContextOfItems.ContextIdentifier == "Body":
+                    return representation
+        elif element.is_a("IfcTypeProduct") and element.RepresentationMaps:
+            for representation_map in element.RepresentationMaps:
+                if representation_map.MappedRepresentation.ContextOfItems.ContextIdentifier == "Body":
+                    return representation_map.MappedRepresentation
+
+    @classmethod
+    def has_dynamic_voids(cls, obj):
+        for modifier in obj.modifiers:
+            if modifier.name == "IfcOpeningElement" and modifier.type == "BOOLEAN":
+                return True
+        return False