Sorry champ, I do the whole dps with all 4 and pray I take little damage, and when I do take it I either target my pally (i drive from the pally) and manually heal or I have a 2nd keybind on 2 slave which heal my tank (the other 2 keep dpsing). So I'll do like 3 gcds of pure dpsing then 1 gcd of the split dps/healing.

Other people use ISboxer with video feed sharing and click healing though if you want to go pro. I'll let them explain that lol