Is it possible to set up my xp60 so that when holding note(s) down & changing between performances that the sound would carry on, instead of it cutting off as soon as another performance is selected.

If not is there a simple way of turning patches on & off in performance mode, like assigning them to a button or slider etc.? I can simply take down the volume of a specific sound but this doesn't free up the polyphony.

Can anyone help.