bim.hide_queried_linked_element - note known UNDO limitation

src/bonsai/bonsai/bim/module/project/operator.py

@@ -2373,7 +2373,8 @@ class HideQueriedLinkedElement(bpy.types.Operator):
     bl_description = (
         "Hide geometry for currently queried linked element.\n\n"
         "ALT+Click (or ALT+H in Explore Tool) to unhide all geometry for currently selected linked model.\n"
-        "(Not Yet Implemented) SHIFT+Click to hide everything but currently queried element."
+        "(Not Yet Implemented) SHIFT+Click to hide everything but currently queried element.\n\n"
+        "Know limitation: doesn't work with UNDO."
     )
     bl_options = {"REGISTER", "UNDO"}
 

src/bonsai/bonsai/tool/project.py

@@ -675,6 +675,10 @@ class Project(bonsai.core.tool.Project):
 
             # `MeshPolygon.hide` works only in EDIT mode,
             # so we use vertex groups + Mask modifier.
+            # But since for hiding we're modifying object in a linked model,
+            # then those changes are ephemeral and not fully supported by Blender
+            # e.g. they're not tracked by UNDO system.
+
             MODIFIER_VG_NAME = "BBIM_HIDE_LINKED_GEOMETRY"
 
             vertex_groups = obj.vertex_groups