Semilive: If you're refering to the MidiSolutions "FootSwitch Controler", yes it will work on the PSR2000 too. I believe that the PSR2000 only includes 2 onboard footpedal outputs, so if you want to trigger 4 total footpedal functions, you'll need to purchase TWO midi "FootSwitch Controler Boxes" from MidiSolutions.

SemiLive: Exactly what FOUR functions are you wanting to trigger via footpedal?

You'll need to verify via your PSR2000 Data List manual that these specific functions are supported via midi on your keyboard.

Scott