Need to reset a Grant invoice with correct Inv Date and Billing date

Hello. We billed and created an Invoice out of PROJ_RESOURCE with a Invoice date and Due date of 07/17/2018, but we wanted the Invoice date and Due date to be 05/31/2018 (an error on the single action invoice run control) Do we need to do an adjustment to the entire bill? (NAV: Billing>Maintain Bill>Adjust entire Bill) If we did that, we would be creating a separate credit invoice that would reverse the "bad" invoice, but how would we re-create the (now 3rd) invoice that we want, with the correct Invoice date and Due date of 05/31/2018. IE we want to