if the shift key is pressed 5 times windows turns the sticky keys or someting (i have disabled it on my machine)
googel desktop search is invoked by pressing the control key twice or someting
FARR can use similar principles. instead of using combination key presses (is use "ctrl + `") or travel over to the pause/break (accross the keyboard)
a couple of taps on the "ctrl" could pop up FARR Farrrrr faster, using either of your "pinkies"