When using “Add New Row” buttons / actions, along with the “Open Row for Editing” option, it can be a bit confusing to users seeing the editing screen and not having some type of “Submit” or “Done” button.
It would also be nice if there was a delete button, in case the row was created on accident. Something similar to what I mocked up below, a delete and submit button located on the floating header.
They could even be optional as a part of the customized layout options.