Getting rid of User defined costs

Hi All,

We would like to know if there is any standard functionality to delete "User Defined Costs" for an MAKE item in a standard costing org.

The scenario that we are experiencing is as follows

1) We have item 123 in org A as a MAKE item and it has rollup costs without any user defined costs.

2) We have assigned this item 123 to org B and copied costs from Org A to a newly defined cost type "XXX" in org B using "Copy Costs Across Organizations" program

3) So we now have item 123 as MAKE in org B with "User defined costs" in new cost type "XXX".