Logitech MX Vertical Device Change Button Mod

Logitech makes some great mice, but for some reason their MX line only have the device change button on the bottom. I could not deal with that, so for my MX Vertical I wired in a button up top.This uses a “Kailh Mute button 6*6*7.3mm Silent switch” which I got on AliExpressThe button is held in place by the “Holder” piece which locks into a structural part inside the bottom shell. Then the hole is cut out the top half for the button. The printed button is oversized so may require some shaving of