Hi there......  I  get lazy cam pro licence  yestarday , there is now under mach3 folder how can I  upgrade it .  I    want to cut a piece of tile  18"x18" ,  I create my desing on my  AUTO CAD,  and then open LAZY CAM to cut some circles at .5" deep and I made some spiral figures where i need to cut at .1875" deep after the circles  i try  diferent ways but when i setup  deep  set alll layers....... how can i set diferent deeps?