There is a great freeware called Autohotkey. It saved me a tone of key presses into one, two , three. It is a macro, scripting program, it lates you define your own hotkeys with tasks they will execute. Works in a background together with the game. You can bind as many keys you like into one key, don't have to peck,peck,peck at a keyboard anymore.
http://download.cnet.com/AutoHotkey/3000-2084_4-10279446.html?tag=mncol