Thank you for following up in this thread, BobPeloquin.

I'd like to share what I know about the additional column for website in QuickBooks Desktop.

Currently, there isn't any available option for website to be added as an additional columns. Thus, the work around provided by my colleague Maybelle_S in this link  is your only option. This will add a custom field for website in Add/Edit Multiple List Entries window.

I'm adding this article for more information about it: Add and edit multiple customers, vendors, and items.

Get back to us if you still have other questions or clarifications. I'm always here to help. Have a good day!