While being able to delete multiple addresses at once would be a great feature, Rob, it's not currently available in QuickBooks Desktop. You'll have to delete each one individually.

Here’s how:

1. Go to the Vendors menu and select Vendor Center.
2. In the Vendor Center, choose the vendor you need to edit.
3. Click the Pencil icon to open the Edit Vendor window.
4. Go to the Address Info tab.
5. On the right side, you'll see all the shipping addresses. Click the trash can icon next to each one you want to remove.
6. When you're finished, click OK to save your changes.

Feel free to reach out if you have any further questions or require assistance with QuickBooks. The Community space is available 24/7.