In this guide I'm going to be covering how to add a return address to your labels and invoices. This will your Royal Mail 2D barcode labels and all invoices.Step by step guide:1. First of all hover over Settings and click Shipping2. Once the page loads scroll down till you see the Collection Addresses section and click on the Edit button.3. You will then be taken to a form where you can fill in or update your Collection address, once your happy with your updates just click save. 5. Once this has saved this will be displayed as your return address for all future 2D barcode labels.