As an administrator of a Secured Folder or a Document Management library, you can prevent users from deleting documents and folders in a document class.
2. Select Document classes.
3. Click the name of the document class you want to configure or select Configure document class in the More actions menu. The document class configuration page opens.
4. Select the Security tab.
5. Select the checkbox Only administrators can delete documents.
Note: By default, the checkbox is not selected: all contributors can delete documents and folders in the document class.