Hi, I have recently bought a CDP-230R piano. I hooked it up with my Macbook pro via USB and was able to play software instruments in Apple Garageband successfully. I was wondering can I use CDP-230R's stop/play/FF/Rewind buttons or sustain pedal as a MIDI controller to control Garageband's transport control? I have no previous experience in MIDI, so I couldn't understand the MIDI implementation chart included in the manual. I attached the chart here. Any help on this subject would be appreciated. Thank you in advance.