Allow me to share some information about your program, @dmlair,
The Self Employed program is the basic version of our online services that is intended for independent contractors. This is the reason why some options like creating invoice templates and terms is currently unavailable.
If you need these options for your business, you can upgrade your service to our small business packages. Click this link to view the products that suits your preference and check the features available for each product: QuickBooks Online Plans
Once you upgrade your service, you can follow the steps from the links below:
Feel free to post here again if you have other questions about our products or need anything else with QuickBooks. I'll be right her to help you. Have a good one!