The options in Healbot you just gotta keep digging.

When you get to the option Sort by- then a scrollbox change that to name. Where it says targets list- check everything but SELF.

I'm sort of with you though- my Healbot has a mind of its own. It'll stay anchored where I want it for weeks then I log in one day it's moved itself and I have to realign the BS. Also the skins on one character don't match my other characters. Just odd things popping up here and there. Think I might give Vuhdo a shot myself.