HI Everyone，
My question is how to calculate different component with different unit in OPM, the background is we want all the piping component be calculated in one report(include pipe, elbow, reducer, tee, specified gasket and bolts). The pipe should be calculated by length while others be counted by number. We also have a column called unit, in which should show M(meter) on pipe rows, and be empty on other rows. I have tried to copy the settings in Bill of Materials, but didn't succeed.
