I am uploading photos to a dozen different folders and subfolders. I need to give access to two people where they can see all of them and download what they need. How do they access it all without my sharing each folder separately? Can they sign in to my account with the password as though they were me? This would be the easiest for us all but they would have to put in my email address and password and it seems like Dropbox wouldn't like that. Please advise! Thank you.