Cohesion3d rotary setting A axis latest firmware

Who can tell me the a axis config settings to make for this rotary for Cohesion3D mini, having latest firmware (4 axis)?
And can i leave the flatcable (y axis, endstop) connected?
I am using Lightburn, rotary on A axis but when i turn on the machine and plug in USB, the gantry is still moving to the back.

Any suggestions are welcome!

Please confirm, for which rotary?