How to share a FOLDER with the organization

Hello,

I have just signed up with a business account for Acrobat to work with PDFs.  There are 2 of us in the organization (more to add later.)  I want to share a bunch of PDFs on a weekly basis to the other person.  I DO NOT want to have to share documents individually.

The business account comes with "Libraries."  As far as I can see, this is how I want to share a FOLDER with a bunch of PDFs that will be changed weekly.  But how can I put anything into this Library?

Drag and drop does not work.  Saving a file to my own Document Cloud doesn't make it accessible in the Library.  And "Share to a Library" is not a thing.  And, I can't share the Folder in My Files.  

I tried the Chat help, but the Chatbot was useless, and the "real people" kept transfering me to other "real people."  

Why is this so hard to find?

Thank you