One way might be to check the set if chosen, but unset the check if an option is modified (because then it constitutes a new set).
your note makes a lot of sense and provides just enough feedback to give me a clue as to what is going on.
if you pop'd up the list to see what was selected, why not just select the one you want in the same motion?
A valid point. However, there are cases when doing that can be a problem. For example. If I choose "Set A" and change it, how do I know if I'm looking at the original Set A or the modified Set A? If then choose to simply grab Set A again from the list my changes are lost.
Now I'm left to remember what it was I changed... and on most days I have a brain of teflon for that sort of stuff
Of course... if I'm clever, I would have chosen SetA, made the change, and saved a new Set. However, I confess that my work habits do get sloppy and tend not to change the set until I've finished testing the settings. Poor habit on my part but I doubt I'm alone.
In the end, it's about me being stupid and lazy in that I can't remember what set I chose or if I changed it. Your first note on simply turning the checked flag on or off would be enough to make it clear where I'm at
I appreciate the dialog on the subject. It really is a very subtle point to which both sides have merit. I leave it with you to ponder.