OPM CE Construction attribute Bolts Gaskets

  

Running OPM CE update 4, we find that Bolts gaskets and 'obstruction volumes' have graphic attribute set to Primary.

With reference to v8i post 

https://communities.bentley.com/products/plant/f/autoplant-axsys-openplant-plantwise-forum/124118/opm---assign-gaskets-and-bolts-to-a-different-level/377001#377001

Are we missing anything?