you can make a macro, to /follow character and just tap that key, or use keyclone to broadcast that same key to all windows. I just choose instances that dont require the lowbies to move, which are SFK, Stockades, SM Cath, SM Armory, Scholomance and Hellfire Ramparts. for the most part you can park the lowbies at the entrance and just wail away on your main. Sometimes I just use RAF, and put one of the lowbies as group leader, and put loot on freeforall, then after most mobs are dead, I move the lowbie raf leader to the mobs and they all start to loot like mad, then i move to the next pack.