I would like to build a box I can plug the TRS output from my expression pedal into and control expression parameters on up to four different effects either simultaneously or separately via stomp switches. I hunted for a vero layout without any luck but I did find the schematic below. Could someone assist me in turning this idea into a vero layout or drawing? I feel like this would be a great addition to the utility section of the site and was surprised I couldn't find one already done.