This is an awesome new way to use the Pick List feature, Emmanuel, especially since so many of us (me included) are now working with AI text, which means we are in editing mode (so the need to select) more than typing mode.
Of course, we can always use the Pick Loop method to select text and then do something to it, but if I'm understanding correctly what you're describing, this is going to save us from having to hit another keystroke to trigger the desired action, and that will help preserve our editing momentum.
I can't wait to see an example. I must humbly confess that I immediately tried to create a Repeat Expansion Loop, and it was a fail. I have to admit to being stumped as to how you're going to create a toggle picklist, since in theory, and in my failed attempted, each new selected word toggles, so it's a constant toggle on/toggle off tug-o-war LOL. I'm eager and excited to see what magic trick you have created to get around that!
-Karen :)