I set my tool offsets 4" above my vise then subtract that measurement from my part top like many people do. Up to now, I do the math on a calculator then input the sum into the control. On occasion I'll make a mistake with the math or inputting it into the control so I'm constantly checking and rechecking myself which takes up time. Since the offset distance remains the same (unless I break the probe tip on my Haimer 3D Taster) is there a place in the Haas control I can input my off-set measurement so I can just touch off the part top and let the control subtract the offset and insert the sum into into my z work coordinates?