To setup Program Change messages:
1. Press Edit.
2. Press the Page Right button until you get to the System Tab.
3. On the Rotary Wheel, tap the Right Arrow until you get to:
MIDI/USB.
4. Press Enter.
5. Under the General Tab, make note of the MIDI channel the
GR-55 is on and make sure that PC RX SWITCH and PC TX
SWITCH settings are turned: ON.
6. Press Page >.
7. Turn the rotary wheel to turn the SWITCH parameter ON.
8. Press Down Arrow to move the cursor over the CHROMATIC parameter.
9. Turn rotary wheel to select either MONO or POLY.
MONO - one channel per string
POLY - one channel for all six strings
10. Tap Page > to get to the RX PC MAP tab.
11. Set the BANK to receive from the BANK you're sending from
the Foot Controller.
12. At the bottom of the Rotary Wheel, press the Down Arrow to
PC :1 (Program Change) and spin the Rotary wheel until you
get to the Patch number that you want to recall when
sending Program Change #1.