How to invoice from different addresses

How to invoice from different addresses

Hi, I need to be able to send invoices from two different business addresses. Everything else remains the same: My name, my company name, my customers, etc. I initially thought I would just add another account for this, starting with the free account (now I have Standard), but I realized I would have to re-do all my invoicing templates, customer details, etc. and that's going to be a lot of trouble. There must be some way to do this from a single account - can anyone help?

Thanks in advance,
Susan