Replace or In addition To?

I just came across this in our search to add OneDrive files to our intranet. In a quick read, this might work, but I wanted to clarify. We don't want to move all our media to OD, we just want to use it as a file repository for a decent amount of PDFs and what not.

I wanted to confirm that using this plugin does not replace the existing Media Folder, but simply give us the option to select files from a new source?

Also, and I may be crossing topics, does your WP File Download allow us to point to a folder (and then list files like the old Memphis Docs plugin) or do we need to manually list and link each one?

Thanks,
Frank