Currently limited to the 8 foot switches but capacity to run double that number of stomp boxes.
Why not allow us to create a bank a of effects. Could use 6 buttons and dedicate one to a/b or have another hold feature to switch ( plus midi).
Alternatively add another footswitch hardware unit that can be used, like the fractal FC units that can combine with FM3/9. Or allow a dual footswitch as one of the expression pedals.