You can now select stuff like doors / windows instead of having to select the opening element itself when adding voids, with some assumptions. See #1426.

src/blenderbim/blenderbim/bim/module/model/pie.py

@@ -84,9 +84,11 @@ class PieAddOpening(bpy.types.Operator):
             for obj in context.selected_objects:
                 if "IfcOpeningElement" in obj.name or not obj.BIMObjectProperties.ifc_definition_id:
                     opening_name = obj.name
+                elif len(obj.children) == 1 and not obj.children[0].BIMObjectProperties.ifc_definition_id:
+                    opening_name = obj.children[0].name
                 else:
-                    obj_name = obj.name
-            bpy.ops.bim.add_opening(obj=obj_name, opening=opening_name)
+                    opj_name = obj.name
+            bpy.ops.bim.add_opening(obj=opj_name, opening=opening_name)
         return {"FINISHED"}
 
 

src/blenderbim/blenderbim/bim/module/void/ui.py

@@ -27,6 +27,8 @@ class BIM_PT_voids(Panel):
             for obj in context.selected_objects:
                 if "IfcOpeningElement" in obj.name or not obj.BIMObjectProperties.ifc_definition_id:
                     op.opening = obj.name
+                elif len(obj.children) == 1 and not obj.children[0].BIMObjectProperties.ifc_definition_id:
+                    op.opening = obj.children[0].name
                 else:
                     op.obj = obj.name