Modyfying Engl Z-12 controller with leds or switch with led ring

[Setneck]

Hi

Did anyone modded Engl Z-12 midi footcontroller with installing led diodes above switches or using switches with led rings (such as in HX Effects for example)? Would it be technically possible? If so, how to power the leds in this controller?

Thanks and best regards
Andrzej

[The Dude]

Isn't there already a numerical display that tells you which patch you're on?

[Setneck]

Isn't there already a numerical display that tells you which patch you're on?

There is. But I would prefer diode above the switch as in Z-9 or switrz with led ring as in the Helix. No schem od Z-12 available though so I seek for the solution.