Live Modular Cut-Ups

I started setting up this patch yesterday and fleshed it out a bit more this morning. It consists of a few modulated sound sources going to my mixer/output module. I used the mixer's mutes to open and close channels at random to produce bursts of chopped, stuttering, tape-style cut-ups.

Unfortunately, the mixer's mute buttons are very small and awkwardly placed, so working them live is very touch-and-go. I don't like this lack of control, but I suppose looking at the situation more philosophically, it provides another element of chance by way of accidentally fat-fingering the wrong button(s). Either way, I want to build myself a mute module with more ergonomic button placement to put in front of the mixer. Ergonomics aside, such a module will also allow me to add effects (delay, reverb, filtering) to individual channels before they hit the mixer, so that I can mute channels without chopping off the tail/sweep of spacial/envelope-generating effects (the mixer I'm using has no effect sends).