This is no longer necessary.  By setting the feet on the machine to raise it on one side the build press has a tendency to roll to the right hand side of the machine. This was initiated as a countermeasure to users leaving the press in a location other than against the right hand side which could lead to gantry problems such as Y-Y position errors.   In V6 firmware we've added a routine that automatically puts the press in the correct position once the door is closed.