I have a book I want to sell as an eBook and in printed copy, I thought that the same item on ClickBank could offer both options but it seems I need to make 2 different products, one with and one without shipping. Can I have the same pitch page for both but put 2 Click Bank Buy buttons and have one button be for the eBook, and the other for the eBook and printed copy (or can you send only the printed copy for shippable items without a digital version)? Thank you