Advanced Screen Button Layout 
REF ALL HOME REF ALL HOME Button  
LOAD FILE Load File from SERVER   
EDIT G-CODE Edit G Code   
SET ZERO Set Zero   
GO TO ZERO Go to Zero   
VACUUM Vacuum ON/OFF   
START START: Start job.  
HOLD HOLD: Hold current operation. Continue operation by pressing START.  
STOP STOP: Stop (TERMINATE) current operation.