Since you are using xTool’s Device Configuration file, you are using this “DETECT” macro for focus.
What he’s suggesting is to edit this macro to first move to the center and then focus.
You would right-click on the macro in the Console window to edit it so that it first moves to the center and then executes the focus code (M368).
This G0 X254 Y195 should work but someone might need to confirm this.
BUT!: If you follow Joe’s instructions here, it uses our new xTool device profile, allowing you to focus by clicking “Focus Z” in the Laser window.