Edit Content
On an asset click the pencil icon:
Make your edits and save your changes.
All users can add content and edit content, but save options are dependent on your system role (e.g. not all users can publish content).
To add a new file version, click the upload icon under the file name. To update a URL, delete the previous URL and add the new one:
To change the Content Type or Owner, hover over the three dots to the right of share:
Administrators can bulk edit content from Content Manager > Assets tab: