Array children are now transforme-locked after editing the array

I have yet to find how to set it on ifc load though

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

@@ -135,6 +135,7 @@ class EditArray(bpy.types.Operator, tool.Ifc.Operator):
         data = json.dumps(data)
         ifcopenshell.api.run("pset.edit_pset", tool.Ifc.get(), pset=pset, properties={"Data": data})
 
+        tool.Blender.Modifier.Array.lock_children_transform(element, True)
         tool.Blender.Modifier.Array.constrain_children_to_parent(element)
         return {"FINISHED"}
 

src/blenderbim/blenderbim/tool/blender.py

@@ -532,6 +532,14 @@ class Blender:
                     ) or child.constraints.new("CHILD_OF")
                     constraint.target = parent_obj
 
+            @classmethod
+            def lock_children_transform(cls, parent_element, lock_state=True):
+                for child_obj in cls.get_all_children_objects(parent_element):
+                    for prop in ("lock_location", "lock_rotation", "lock_scale"):
+                        attr = getattr(child_obj, prop)
+                        for axis_idx in range(3):
+                            attr[axis_idx] = lock_state
+
             @classmethod
             def get_all_objects(cls, parent_element):
                 parent_obj = tool.Ifc.get_object(parent_element)