How do I get the Yamaha PSR2000 to transmit on MIDI channel 2? I purchased some Hammond organ software that has two virtual keyboards (upper & lower). I set the lower virtual keyboard to receive on MIDI channel 1. I want to set the upper virtual keyboard to receive on MIDI channel 2 but can find no way to get the Yamaha PSR2000 to transmit on MIDI channel 2. Can you help me?