i have two H9's, one of which i use with an expression pedal but i want to ad a separate toggle switch to this setup. my goal is to continue to have the expression pedal do what it does, but i want to add a footswitch that will allow me to SCROLL presets, allowing me to have the H9's tap-tempo button dedicated to just that. i hate having to hold it down for 2 seconds to change its functionality. so…who makes a (preferably tiney) single button switch that will enable me to do this?