Thx, what exactly do you mean with hard to use? ( learning form mistakes ;) )
I took a few minutes trying to figure out how to push the buttons. I think it might have been the computer. I had to click. Then hold click and move. Then click again to switch.
erhm, okay that sounds weird... normally you can only push the set bool buttons (the i higlighted with mouse over)
if you clicked the button the button. all the buttons get inactive (red), the game checks the conditions and then sets the buttons back to active. What system are you on?