How do I restore a removed file or folder in Resources?
Users can restore a file or folder they have previously removed from Resources.
Go to Resources.
Select the Resources tool from the Tool Menu of your site.
Click Actions, then Restore.

To restore a file or folder, to the right of the folder where the item(s) were removed, from the Actions drop-down menu, select Restore.
This displays the folder's Restoring page.
Select the items to be restored, then click Restore.

Items are restored.
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This restores the previously removed items back to the folder.