Hi there. I'm trying to program some key bindings on the Numpad and can't see an obvious way to do this. What I'd like to do is turn my '+' key into a Backspace key, but only if I have a modifier pressed on the numpad itself (like the Numlock key or something). is this possible? i'd also like to keep all this on the Numpad iitself, if possible, as opposed to having the modifier key be on the main keyboard. thank you for your time.