How To Apply A Negative Invoice like a normal AR credit memo and bring its balance down

Summary:

We have a scenario where we have a AR transaction type called NEG_INV (Negative Invoice) with type as Invoice and sign as Negative.

We would need transactions belonging to this transaction type to get applied to existing invoices that has positive sign. When we checked, we could see only credit memos can be applied to invoices but not this NEG_INV as it is not showing in the LOV. Is there a way that we can apply this or adjust.

When checked in oracle support we could see below note, but not really sure whether this is the only option ?