Am new to this with multi boxing, been looking through the forums for a bit trying to find a solution to a problem that I'm having. But I'm not sure that if I just want too much, anyhow.

Is it possible to make a macro to assist a targets focus?

I will be playing my prot paladin as main, and have a shaman as healer, but when grouping with other people I would like to be able to easily heal the others by simply having a /focus [target=mouseover] bound to one of the mouse buttons, then have the healer assisting on that focus so I don't have to change from the target I'm tanking with the paladin. Just not sure if its possible to say /assist targetfocus

I would of course try this before asking if it weren't for me sitting at work and this question is burning a hole on my skull