Can we add due date field in the standard Oracle FBDI template for AP Invoice creation?

Currently, the due date is calculated on the basis of payment terms. Our client requirement is that they want to have a due date field so that they can manually add in case of any changes in due date.

For a single invoice, it is OK for user to change it manually but we would want to know if we can add a separate field in FBDI so that user can directly add the due date and not rely on the payment terms calculation.