I think you are going to have to create your four favorite patches in A1 A2 A3 A4 and with this pedal you can call 16 patches up to D4
https://www.ebay.com/itm/NEW-ActitioN-4-Button-MIDI-Footswitch-Foot-Controller-/222802471690
I have a Boss midi pedal. The FCB1010 is huge and has a ton of features.