The Global Channel function (GLOBAL CHAN) for the Oxygen Series (blue & silver) keyboards sets the default MIDI channel for the keyboard and all MIDI controls, except for those that have a specific MIDI channel assigned to them.  To change the Global Channel:

1. Press the Advanced button
2. Press the Global Channel key - The LED display will show the current Global channel. For example if channel 1 is the current Global channel, it will appear as "c.0.1."
3. Enter the new channel number using the number keys.
4. Press the Enter key.

The Global Channel can also be changed by using the following method:

1. Press the Select button until the lower edge of the LED displays a red dot above "GLOBAL"
2. Scroll through the MIDI channels using the "-" or "+" buttons to select the new channel number