I dont have the luxury of sitting down or using both hands so I use a single CC# to automate drawbars on B5, Blue3, or my HX-3 hardware module.
So I have a 16 x Drawbar controller for both or a single manual.
Just stomp down and pull back on an expression pedal, don't have to ride it, just stomp it and the device does the rest.
Each drawbar has curve modifiers, lag processors, throw as in starting point and destinations, reverse, etc.
128 presets of various combinations but I use a dozen.
But you could buy a Source Audio Reflex Pedal, it too has 128 presets, curve modifiers, lag, etc.
Or a Bome Box with MIDI Translator pro software package, store and recall protects for various shows.
These are fantastic for synths too.
I can use a single CC# on the expression pedal, stomp on it and listen to the filter sweep, as the decay of the envelope decrease and resonance climbs.
It takes 3 hands to do that but I use a foot. Cant be missing my horn parts plus I stand when I perform.