I know you aren't really taking suggestions right now but I thought it would be worth posting. A feature that would let you press a tac switch a certain number of times to give you a different setting for another button, Ex:
Pressed 1 time, turbo knife on the 1st left tac switch
Pressed 2 times, dropshot on the same switch
Pressed 3 times, quickscope on the same switch as well
Pressed 1 time, turbo knife on the 1st left tac switch
Pressed 2 times, dropshot on the same switch
Pressed 3 times, quickscope on the same switch as well