Faktura VAT 2020 | Tutorial – Setting up the numbering To change the numbering settings, press F12 and select the “Numbering” branch or select Settings -> Basic -> Program configuration, “Numbering” branch.Select the document from the list for which you want to set the option. Change the numbering format to the one of your choice. We can enter our own format.Click . © 1999-2021 RAFSOFT.NET