Andre:

Basically the answer is; can't be done.

Options;

The typical purpose of this exercise is to get the cubic equivalent to a weight. I'd suggest just storing the answer in the weight field. By default PO and OE will then multiple the cases order/shipped by this number.

You could use the IC Additional Information to store the data but it's only static. I'm not even sure if it would be possible for Softrak to then take this information and parse it out into the answer you are looking for (PO or OE).