Ability to Look Up Return Shipping Cost

It's very difficult to quickly filter to shipping costs for return orders. It would be great if there was a way to easily see the Ship #, Return tracking #, and cost in some sort of report. As a temp quick fix, having "Return" somewhere in the charge description to filter in the All Transactions view would be helpful. Only way to distinguish return from original shipping in a Ship # right now is by looking at the date it was generated and comparing to the original label generation date.