Content may be modified in bulk, including publishing, unpublishing, deletion and cloning.
Navigate to Manage Content.
Check the checkbox next to the content to modify. Multiple items may be modified at once.
Beneath the “Operations” section, select the “Choose an operation” dropdown field.
After selecting the desired action, click "Execute."
On the following screen, a list of affected items and two buttons to either confirm or cancel the operation will appear.