Hi Isaak and thanks for your replies.
I don't have a joystick. I do it in the traditional way, using the keyboard.
I'm not sure if my point has came across clearly. All I need is to be able to set thrust to idle by pressing a single key, especially during landing. Just like Octal450's aircrafts (IDG A32X, IDG A33X and IDG MD11X) where you press the "E" key and then thrust is being cut immidiately.
So would that be possible on 777?