Recurring invoices

Hey Fred_C​ we aren't sure where you saw online about recurring invoices (and we'd definitely be interested to learn, so we can have that cleared up), but you can definitely do saved products and service line items for your invoices. 

When you add a new item, there's a toggle at the bottom labelled Save to products and services that then adds the item to a saved list for recurring use.

EDIT: going back to that online source you read. Could you share a screenshot?  We'd really love to track that down.