[help] Question about keyboard software

I recently designed and built my own custom mechanical keypad/gamepad for gaming. I used 32 red switches and an iPAC 2 to power and run the whole setup. Now that it is built, it works fine, but I would like to change what these switches do.

Currently, they are all paired to actuate a key on a keyboard, say for example, "w" or "L Shift". What I am hoping for is that whenever I press a key on my keypad, the computer registers it as "button #1" or "button #29". This way, the computer sees a separate input being activated, and not just a letter on my actual keyboard being pressed.

I am looking for something like the G-keys on a Logitech G710 Plus or the numbered keys on the Razer Orbweaver.

Any and all help is appreciated. Thanks!