Idea for Gen Fill - Asset numbers for results

It would be nice if Gen Fill:

1. Idea: If I Gen Fill a new "mouth" or a new dress on someone, if Gen Fill could create an Asset Number for that particular fill and if I go to the next image of the same model, I can tell Gen Fill to create a mouth/dress  using Asset Number.

This would work good so you can change a series of shots into the new mouth/dress and not be pot-luck on every sucessive photo.