Make an onscreen button and have it run code like this,
Code "G91 G0 X -32.5 Y -56.5" ' put the relevant offset amounts here
While IsMoving ()
Wend
Code "G90" 'set things back to absolute
Msg = "Zero X and Y DROs?" 'question for message box
Style = 4 + 32 + 0
Title = "Laser Zero"
Response = MsgBox(Msg, Style, Title)
If Response = 6 Then 'if reponse is yes then zero the DROs
SetOEMDRO (800,0)
SetOEMDRO (801,0)
End If
Change it to this if wanting to automatically zero X and Y,
Code "G91 G0 X -32.5 Y -56.5" ' put the relevant offset amounts here
While IsMoving ()
Wend
Code "G90" 'set things back to absolute
SetOEMDRO (800,0)
SetOEMDRO (801,0)