Hello, I am going to multibox and I am going to try to do dungeons.

I was thinking of leveling a team of 5 Protection Paladins at first, tanky, aoe, selfheal etc.. so I think I have figured out that part but!

I am also thinking of leveling 1 prot warrior and 3 arms and then a druid for healing.. but how do I heal?

Do I have to put the healer as my main or what? or how do I do? Do I heal targets target or?