To Assign The Rotary Encoders - JLCooper Electronics MCS-3800 User's Reference Manual

To Assign the Rotary Encoders

First switch to the desired Bank. Then, select a channel by
pressing a Select button at the top of the fader channel.
Finally, select one of the 8 Page buttons.
Press Assign to enter Assign mode. The yellow LED is lit.
After entering Assign mode, rotating an Encoder knob
selects which one of the five encoders you will be
assigning.
At that point, the display "holds" the currently selected control.
If you change your mind and wish to edit a different control
instead, press Assign to exit assign mode. Press Assign again to
re-enter Assign mode and select a different control.
Use the LCD and rotary encoder knobs to edit the control.
Turn the right-most encoder knob to reveal additional editable
parameters.
After making the edit, press Enter on the Keypad to store the
changes to memory.
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