I was also hoping to be able to use the keys to control all of my characters too because on follow I often end up leaving characters behind. I suspect it is lag but for some reason they just can't keep up and similarly when I set up to start casting on enemy mobs I have to stop and stand there longer than I'd like so the others catch up and stop moving. I'm only running 3 on my comp but I expect I'll need to upgrade my ram or something (running at 1gb). Does anyone else have the same problems?