3D FlipBook - How do i set the last page to be an actual click button to take users to a thank you page and a keep me posted for Book 2

How do i set the last page to be an actual click button to take users to a thank you page and a keep me posted for Book 2 page. An example would be if book has 5 pages then page 6 would be considered last page where i would put button and a message. Thanks again!