Can I use Y and a rotary axis instead of of X + rotary axis?

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A axis orientation? What am I missing?

I have a laser mounted to a CNC router. I have a dedicated A axis rotary that is oriented along the Y axis (wrapping X). I’m trying to figure out how to set up Lightburn to work with it. If I choose A axis in the rotary setup and create gcode to send to the controller (GRBL), only the A axis moves. The gantry stays in place. Is there a setting in Lightburn to let it know that the A axis is aligned along the Y axis? As I mentioned, I’m not using the Y axis motor to turn the rotary. I have a dedic…