One of my past keyboards (I think it was the Kurzweil K1000) had what I'll call for lack of a better term a "freeze pedal." This was a seperate footswitch that allowed you to freeze selected notes while continuing to play other notes. I found this useful for many songs.

My SD-1 has a million alternatives for programming the foot switches...but not this feature. Are you able to do this with any of todays keyboards?

Thanks.

Bob