PPs are now supported by Graphic & Shared Cells in U16. Bravo!
It would be good to include Model / active ACS origin as an option. This will help the user transfer Cells between models, for example. ACS origin. I can see the users using this to assign Cells to specific floor levels, enabling easier less error prone level changes.
The new Fixed PP option for Parametric Cells also looks promising here. Not sure if it works with Graphic & Shared Cells.... hmmm.