Cost update from voucher logging

Hello,

We are testing Voucher Logging and one thing I noticed is that once a voucher is redistributed based on a PO receipt (and there's a cost change) the 08 Purchasing Cost is changed.  We use the 01 Last-In cost and would like that to be updated instead.  Is there anyway we can change from 08 to 01?

We are running applications and tools 9.1.

Thanks,

John