Hello peoples!

Well, let me go straight to the point. I'm new to multiboxing. In fact, I only heard of it yesterday, when I saw this guy with a warrior and a druid in a random dungeon using it.

Well, my question is this: I'm playing a mage currently. Would it be possible to be running this mage + a healer on multiboxing and effectively manage to do the job properly? Would I be able to set up the healer in such a way that it will heal properly the party?