Automatic Amortization Voucher Corrections

I'm looking for a way to change an automatic Amortization Voucher once it is already in the Amortization Schedule on the General Ledger side of things. Specifically, for when it has been put into the Amortization Schedule for the incorrect Business Unit. Right now the only thing I can do is have AP delete it and re-enter it, but if it has already been paid we can't even do that.

I feel like there has to be a way to correct them from the General Ledger side before generating journal entries that I just haven't found yet!