When the generator is at the root menu, pressing the right arrow button will turn channel 2 on.
You may note the bottom half of the box shows ON vs OFF.
Just press it again if this is the case.
If the generator is running a program, then it would have turned channel 2 off. Pressing it again will turn it back on.
Just have the top and bottom sections of the display match in accordance to what you were doing with the generator.
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