Can you add #invoice_terms as the href for each of those bottom buttons. So it will stay at the bottom of the page when clicking on either of those bottom buttons. I just updated and see the buttons but when you click on them, it scrolls to the top of the page which defeats the purpose of having those bottom buttons.
I will edit mine in the templates but for future use I think this should be updated. That will make it stay at the bottom of the page since the invoice terms are at the bottom.
Also one more suggestion to go along with these bottom buttons. I added another save button at the bottom as well so I don’t have to scroll to the top to save.
This is in application\modules\invoices\views\partial_item_table.php line 224 right after the new bottom buttons