The "Downloads" is designed to up- and download files. You can upload only one file or several files at the same time.
There are two ways of naming these facts:
(1) When you leave the "Title" field blank, the title of the uploaded file will be used as the fact name. When a new version is created, the name of the fact becomes the name of the newly uploaded file (if a new file is uploaded).
(2) If you fill in a custonm title in the "Title" field, it will be used also for newer versions even when a new file is uploaded.
For further information on how to upload files, read through chapter "Create content (= facts) ".