I'm here to share more details about QuickBooks Self-Employed, mysticbearman.
We can only create and send an invoice in QuickBooks Self-Employed. I'll forward a suggestion to our developers about adding an estimate/quote feature.
If you want to use and send a quote now, you can switch from QuickBooks Self-Employed to QuickBooks Online.
Please post again if you have other clarifications. Have a great day!