Rating/Flagging of single shots

Maybe another idea to make Macro Studio even more complete:

As it is called Macro Studio rather than Stacking Studio, you may want to make it even more useful for single-shot users by adding an option to flag or rate images.

Lightroom shortcuts for these are

P - pick

X - reject

(if pressed again, it will be removed)

1-5 star rating

1-9 color rating