Legitimate answer. No. You would have to press a directional arrow (WASD or your directional arrows) to stop her from AFing and then cast your heal.

Borderline answer (grey area) is to use something like what Nostromo's package has. When assigning a macro, have the first line as Forward (or Backward) and the 2nd line of the macro as the Action Key (1 to =) for the heal.

A lot of people use nostromo. And to use nostromo, you have to use their software package - so the nostromo software package is not bannable. Part of their software package is a macro recorder. This is doable in the G15 also. If you're controlling ur character to do this, it's not botting. It's when you don't pay attention to your character and it does it still is what's considered botting.