With the Ortur laser you shouldn’t have gotten a “Use Laser” macro. I suspect that when setting up the device, LightBurn asked if you had an XCarve, a Shapeoko, or “something else”, and you picked one of the first two, but the Ortur laser is not an XCarve or Shapeoko, it’s “something else”.
I’m not sure how to make this so people don’t choose these options in error. GRBL devices are a pain in the butt, because CNC-style machines use negative coordinates, and lasers use positive coordinates, but there’s no way I can find in the firmware to determine which is which, so I have to ask the user, but most users don’t actually know. Asking if you have an XCarve or Shapeoko seemed pretty straightforward, yet people keep getting it wrong. Not sure how to address this.