How can the RMA number on the RTV be displayed in the remittance advise to the supplier (when paid)?

PeopleSoft Financial 9.2 PUM 42

PeopleTools 8.59

When you create an RTV there is a field to capture the RMA# given by the supplier where you are returning the goods. We are interested in turning on the function of creating adjustment voucher in AP from closed RTVs. Once issue we are struggling with is - how can we make the RMA# on the RTV appear on the payment remittance advise. This would be the only place the supplier would be able to realize that the adjustment should be associated with a specific RMA# they provided to us.

We see there is a flag to send comments to the voucher (which does not go to the payment remittance advise). So even including the RMA# in the comments would not help.