Routing rates for planning and costing with one operator and multiple machines.

We are on 9.2 of E1. We have an old practice that has been in place long before I came along and before we were on JDEdwards that is now causing a problem. We have several areas in our plant where we have 1 operator running two machines at a time. Because we did not want all of that operators labor time and burden to go to each part he is running, they halved the time it took to run the parts and that became the rate. This is the old practice I mentioned. For