A button to jump back from boolean to the original object

Example - https://imgur.com/a/A3dVbFM

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

@@ -506,10 +506,14 @@ class AddBoolean(Operator, tool.Ifc.Operator):
     bl_idname = "bim.add_boolean"
     bl_label = "Add Boolean"
     bl_options = {"REGISTER", "UNDO"}
+    bl_description = "Applies a boolean to the selected IFC object using the other selected blender object as a void"
 
     @classmethod
     def poll(cls, context):
-        return len(context.selected_objects) == 2
+        if not len(context.selected_objects) == 2:
+            cls.poll_message_set("Exactly 2 objects need to be selected.")
+            return False
+        return True
 
     def _execute(self, context):
         props = context.scene.BIMModelProperties
@@ -654,6 +658,7 @@ class RemoveBooleans(Operator, tool.Ifc.Operator, AddObjectHelper):
     bl_options = {"REGISTER", "UNDO"}
 
     def _execute(self, context):
+        upstream_obj = None
         for obj in context.selected_objects:
             if (
                 not obj.data
@@ -681,6 +686,8 @@ class RemoveBooleans(Operator, tool.Ifc.Operator, AddObjectHelper):
                         should_sync_changes_first=False,
                     )
             bpy.data.objects.remove(obj)
+        
+        tool.Blender.set_active_object(upstream_obj)
         return {"FINISHED"}
 
 

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

@@ -115,8 +115,17 @@ class BIM_PT_booleans(Panel):
             row.operator("bim.add_boolean", text="Apply Boolean", icon="ADD")
             show_boolean_button = row.row(align=True)
             show_boolean_button.operator("bim.show_booleans", text="", icon="HIDE_OFF")
-            show_boolean_button.enabled = BooleansData.data['total_booleans'] > 0
+            show_boolean_button.enabled = BooleansData.data["total_booleans"] > 0
             row.operator("bim.hide_booleans", text="", icon="HIDE_ON")
+
         elif context.active_object.data.BIMMeshProperties.ifc_boolean_id:
+            upsteam_obj = context.active_object.data.BIMMeshProperties.obj
+            upstream_obj_ifc_id = upsteam_obj.BIMObjectProperties.ifc_definition_id
+
+            row = layout.row(align=True)
+            row.label(text="Used as a boolean operand with:")
+            row.operator("bim.select_entity", text="", icon="RESTRICT_SELECT_OFF").ifc_id = upstream_obj_ifc_id
+            row.label(text=upsteam_obj.name)
+
             row = layout.row()
             row.operator("bim.remove_booleans", text="Remove Boolean", icon="X")