you can bind 2 keys to each action. I have WASD and Up, Down, left and right bound to movement.

I have WASD in the DNP (toggled by Scroll Lock for typing) this lets me control my main through WASD and both through up,down,left and right. with this scheme you could use down to drop you warlock.

incidentally Rob is looking at including a Pass only list, like a DNP list but in reverse... those key presses are not passed to the active window, only the clone(s).