Copy Cost Components and Work Center Rates

Can anyone provide a good understanding of the R30890 Copy Cost Components UBE. The documentation implies that when you run this, it will copy work center rates as well as cost components between cost methods and/or branch plants. Is there any way not to copy the work center rates? Or to only copy the work center rates?

Thanks,
Doug
One World Xe
Update 1

Great tool, I used this last year to set up a 09 qouting ledger type. I believe you only have a option to include or exclude the cpy of WC rates. If you are going to copy the cost components, i would recommend copying the WC rates to the new ledger type. This way you could actually do a cost roll-up for that ledger type.