Newly Added Property not available for Properties to edit in Instance

(Incomplete Feature, To be Fixed , Priority: Medium, Test Status: No automated tests yet , Reported By Justin du Coeur, )

Editor

Summary: When I add a new Property, I often want to immediately put it into Properties to Edit in Instances. But it isn't available until I save and re-edit.

This may become moot when I redesign the Design a Model UI.