Now that I have added a 1 inch corner fence at my home position on my spoiler board I need to change the home coordinates to X=1 and Y=1 so when I hit the "home" button on the yellow keypad, the bit will position over the X=1 Y=1 position. This will be my 0,0 position on my material that I will be carving from now on. How do I go about changing the Home position?