I have an idea on how to do this so it looks more elegant than I'm doing now, but the back end would end up being pretty ugly. To whit:
5 variables, 1 each for 1-5 stars.
These variable states on the control page in a nice line next to each other.
Add graphic to the control pages library that's On=star emoji and Off = greyed out star.
Triggers that turn on <N stars if you turn on N stars.
And of course, those same triggers set the rating in iTunes, which I already know how to do.
Anyone have something more elegant in place?
See attached for how I do it now, which is ugly and doesn't actually show the rating, just lets me set it.