I need help with my new red-black Ruida 500x700 size laser

[Bakerjeusmc (Justin Baker)]

Vendor settings for Ruida - Calibrating steps

I have a 60w eBay Orion laser 700x500 with ruida controller and use windows 10. LightBurn has been the only software I’ve ever used. I need to calibrate the x and y axis because my circles and squares are coming out as rectangles and ovals. I tried to download rdworks without success after watching a video on calibration. I also read a forum on here that said we now have access to the vendor settings in LightBurn. Can someone give me some step by step guidance on how to do this correctly?