Yes, I’d love to be able to assign the Up/Down footswitches… I stay on one preset the whole gig basically, so those buttons are dead space (and worse, if I hit them accidentally I get an unwelcome change in sound, or just no sound depending on my next preset).
Obvious candidates are show/hide gig view, show/hide looper, a particular looper function, go straight to tuner, turn a particular block on or off (so I’m in Scene mode but I wanna be able to kick in a boost), disable completely (to prevent my accidental preset change).