You can use the following keybinds to map the power presets to whatever keys you like. Just copy & paste or retype them into the chat like you would any other / command. You can change F9-F12 to whatever keys you want (F1-F4, A-Z, 1-0, Space, Delete, etc.). They're in the same order they appear on the power setting control - 0=Attack, 1=Defense, 2=Speed and 3=Balanced. Search the forums for "keybinds" if you want to learn more.