Option to change the BT-3 code of an electronic invoice

[BeckeBauer]

We are using the Invoicing enhanced plugin. From its description, I understand that it creates Commercial invoice only (Code BT-380).

Unfortunately, we have to correct our invoices quite often (not always our own fault :-). It would be therefore very much appreciated if a drop-down option could be provided in the invoice template section (like the drop-down option in the customer section for the tax status) where the option Credit Note (Rechnungskorrektur) can be selected and if so, would override the standard to Code BT-384). I checked at https://tools.pdf24.org/de/elektronische-rechnung-erstellen and it seems that only this code needs to be adjusted for this purpose.