An identifier (string) should be added to every 3D feature. Commands should be implemented which use these identifiers to select features (or maybe whole parts) to make the operation on them.
These identifiers can be used to control operations with the certain feature afterward, like to show its outlines for example on a 2D drawing.
Benefit:
There can be company-standard 2D drawings (catalog drawings for example) to create to show the same kind of informations about many variations of similar products. To show many different variations of internal parts for example. In this case we have to show the same things in different type of products. And when we create the 2D drawings, we always have to repeat the same operations, for example to make internal parts' outlines visible.
If we had these identifiers of the 3D fe Drawingsatures, we could tell to Inventor "show all xy identifier features' outline" in one command. The result could be: we see all outlines of all features/parts which has the same identifire name on the drawing. We save many worktimes/clicks in specific cases.