Hello Eastcheshire👋, You can set up recurring invoices in the cog in the top right in the Essentials package.
Once you're in that section select new and under transaction type select invoice. Then fill in the customer, the interval you want it to reoccur and the product/service, amount details and save it. Once saved you can come back and edit or delete at any point. You can run a recurring template list report in the reports section for an overview as well as viewing in the recurring templates section. A more in-depth look at recurring templates can be found here