So A lot of the hacks I've take compact keyboard pcbs and rig them to cut down large size boards. It means I need to hack apart 2 keyboards to make one. I've noticed other people do the same thing, they use a new chip or board to make a compact.
How difficult would it to reprogram the original chip of a keyboard, so like you could add a function key, and a number pad like on a compact/laptop board, or is such a thing impossible?