Hey there, @MJBsBooks.
It's great to see you back in the Community. I can provide you with some information about a pay link on statements.
I can see how beneficial this could be for you and your business. However, you can only have a pay link on invoices in QuickBooks Desktop.
I'll submit feedback for you to our Product Developers so they can consider adding this in the near future. Check out our Updates site to keep up with what's new in the system.
Reach back out if you have any other problems or concerns. We're always here to have your back. Have a wonderful day!