@cdthomer, @DanThomas & @peternlewis here is an example of how I add notes to a favorite action via the Craft app (deep link).
The notes remain even if the favorite action is used later. By coloring the action, I know that there is a note in Craft's for the favorited action.
Here is an example:
03)Add <FBAD 211120T150932>.kmmacros (14,2 KB)
01)View <E108 211120T151649>.kmmacros (16,5 KB)