How do i create one document for multiple signatories or do i just have to create a different document for every individual?

I just tested it and it was pretty obvious to "Add" people to new doc, or existing doc. Best to upload a finalized document, where you don't need to change anything of the text or layout. Then use the system to "Add" people (1 or many) who need to sign it. Each person is identified by e-mail. You might want to test it out with yourself (if you have multiple e-mails). When you create a doc, remember add spaces for Initials and Signatures, so it looks right.