I would really like a way to do this but I don't seem to be able to replace the CTRL commands with M4/M5 commands. because I got the idea of "hey if I could bind two action bars to my M4 and M5 buttons I would be able to have my fingers leave the WASD and reduce my needing to click off some parts off my bars".....now I am going to say take it one step further by changing what left and right click do depending on weather you have M4 or M5 held down lol like for me I can set one to scathe (I like to cast it when I don't have tripple cast up and there is alot of movement) to my right click and leyline on my left click when I hold M4 and when I hold M5 I get tripple and swift cast!