If your invoice is in an editable status (IP, N, RE, R), you can add coding lines in two ways:
1. Tabbing through the last field:
By tabbing through each coding field,once you get to the end of the row, tap 'Tab' on your keyboard once more and the system will automatically add a new row for you directly underneath the preceding row.
2. Using the "+ Add Line Item" button:
You can click the '+ Add Line Item' button to add as many rows as needed below the initial coding l