Mass creating Miscrosites / Webpages Using Merge Fields in Adobe Express

Hi! I'm looking into using Adobe Express to deliver endowment reports to donors. I need to be able to create a webpage template with merge fields that will allow me to mass create custom donor miscrosites, complete with unique PDF attachments. My questions are:

1. Is it possible to bulk create webpages using merge fields in Adobe Express?

2. Is there a limit to the number of microsites/webpages that a user can create within Adobe Express?

3. Can adobe express handle multiple pages with PDF file attachments?