I already have a DMX controller that I've programmed with a few sequences for my lights - a slow, low, fading single-colour wash for between sets; and a brighter colourful sequence while we are playing.   However I have a hankering for something that I can control with my feet. Something that is easier to program than setting each individual RGBW value for each light, for each sequence step. Something that I can control the brightness without editing the sequence. Something that might