The second is priority mapping, which operates as above.
After em ptying the interface and maping the main channel,right-click, select "Aux CH default mapping", select "Priority mapping",and click "Save mapping".
The third type is customized mapping.
After clearing the interface and mapping the main channel,right-click and select "Aux CH default mapping",select "Customize" and enter the desired value.
Just right click and select "Save mapping".
The 4th type is drag-and-drop mapping.
After clearing the interface,find the desired auxiliary channel on the left side.
Click drag and drop to the right side and save it.