Since this is a new part of the forums, I'll add this here.
As a healer (especially for PvP) I like to have a self cast keybind (Alt). Basically if I have a teammate targeted I can hit the Alt+Heal to heal myself and not drop my current friendly target.
I was looking for this option right before Beta 5 ended but couldn't find it. It's possible I didn't see it in time. Has anyone found this keybind, or does it not currently exist as an option?