I am trying to use an old Leadwell MCV-OP with which I am not completely familiar. I am trying to figure out how to enter my diameter offsets for each tool on a 6 tool program. I have found the tool registration screen where it allows you to enter MG value for magazine position, tool number and a third column for a value called D. This column only allows one character and the books I have do not tell me what the expected parameters are for that character or what significance it has. I am fairly certain that there must be some place on here to enter the values for my tool diameters but cannot find it. Can anyone help me ?