I’m not sure if this is what you are getting at, but it just sparked an idea.

You can execute a keymap on ENTER and EXIT of the repeater region. Have a Keymap that alters what left click does. On ENTER Left click now does this:
Send left click -> Execute custom Keymap for healing priority or RR heals
*Grid/VohDo bound to Left click = TARGET
On Exit Left click is unmapped and returned to normal.

I like it! I have a feeling that this is what you’re getting at, but I’m at work and don’t have time to really poor over this. I’ll look at it when I’m home, thank guys!