Media, Titles and Release items can be duplicated in bulk.
In order to do so, click on button on the left representing the item type you'd like to duplicate in bulk - Media, Titles, or Releases.
When the tab opens with the list of items, use the check box at the left of the item area to select the ones you'd like to duplicate.
Click the Actions button at the top right of the interface to open opens, and click the Duplicate option.
A pop-up box will appear asking you to verify that you want to duplicate the items.
Click the Duplicate button to verify.
The new items will now appear in the list of items with COPY in their names.
To rename them, click each open and click on it's name to edit it.
You can also modify the metadata and anything else you'd like for the item.
Click the Save button to make the changes.