Different settings, different hotkeys, different add-on's, ect...

Thats why I run more than one copy of the wow folder...

My main has many add-on's, and her movement is bound to "A,S,W,D", but not do the arrow keys.

My clones use almost no add-on's, and dont have movement bound to "A,S,W,D", ect...

This way I can move all my clones with the arrow keys, without moving my main (primarly used to make my clones turn for LOS) and move my main without touching my clones....