Hello there, @tonykeene.
I'm here to help share information about adding an add work line when creating invoices in QuickBooks Self-Employed (QBSE).
When creating invoice/s in QBSE, you can simply click on Add Work to add an item or work you want to include on your invoice/s. If you're referring to adding a line in between the items when creating invoice/s, as of now, there isn't an option to do it that way. However, I'll take note with this so can pass along the suggestion for you and be able to get the feature as quickly as possible.
On the other hand, you can always check our self-help articles for your reference in the future: Help articles for QuickBooks Self-Employed.
Stay posted if you have any other questions about invoices, I'll be always here to help. Wishing you the best!
