Change output channels for tsunami super wav in mono mode

I have the board working as desired. I am running in mono mode. Output works great on output channel 1. How do I change the output to output channel 2. I’ve tried changing the output via the configutator tool to 2, also 3, but no luck. What setting do I need in the output field in the config tool to run output to output 2? I can also edit the config file directly if I need to.

It should just be that drop-down menu…make sure to save/upload

Is there anything different about the wiring the the different outputs?