VERY sweet!!! LOVE your MPG motion, very smooth!!!
just a side note for your future project(s), to cut down on your wiring, (at the pokeys terminals), you could use a Matrix Keyboard and "tap out" the membrane keys wiring to your "Real" screen buttons. You could also use the Auxillary Data Bus, OR the Matrix LEDs to give light feedback to your buttons. The Matrix Keyboards for
a 4x4 is only 8 wires(16 buttons), and for a 16x16 is only 16 wires(64 buttons). the Matix LED (or ADB), only uses 3 wires, and that circuit will break out to your leds.
But, if you have a low button count, or button light count, then if your below the matrix key wire count it is best to go the pin to IO route.
Super nice job on your panel!! Love the Metal shroad around it!!!!!
Scott