The heart of my pedalboard is an HX Stomp, I am far from utilising anywhere near its full capabilities yet but still find its 3 foot-switches ... limiting.  (I always have one setup for tuning/mute) ... time for an extension foot-switch.  Having a rather demanding feature list and limited bank balance (I've spent too much already on my new gear) I found that then available off the shelf control units were out of reach price-wise.  I'm a "maker" and love to fiddle with electronics, 3D design/prin