Feature Request: "Service" fields on recurring invoice

I usually schedule my invoices to be sent on a specific date, with the end date being just a day after the start date, making them to be sent only once. When you convert a task into an invoice, the "Item" field becomes a "Service" field, after which you can add items yourself by clicking the "Add Product" button.

Would it be possible to add a "Service" field to recurring invoices too?