I have been trying to use one of PayPal's Smart Payment Button's to allow customers to pre-order an eBook. My question is 3 fold:

1) I don't see an option to select that the product is digital and requires no shipping

2) Can I capture the customer's email so that when the book is available I can send email it to them? Is this available in my business account's dashboard, or would I have to use an additional form on my website?

3) I don't see anywhere in the button customers screen where I can set a URL the user is directed to once they have successfully made the purchase (for pre-order, this could first go to a form, to collect the user's email for sending the eBook when it's ready, and then once it's available, a user could simply download the eBook from post purchase page.