I recently got a chance to check out the psr2000 and i love it. There's one thing that i cant figure out tho. There's only 2 pedal jacks on the back. I'd usually assign those to damper and start stop on drums. That means i need 4 more switch inputs for the drum fill controls. Can this be hooked up thru the midi? I currently have a korg is35 with an ec5 pedal switch. Is there a way to use the ec5 with the midi input to control all those drum fills? Thank you in advance for any help.