Ektron CMS400.Net Reference
You can assign permissions to a single content item, overriding the permissions inherited from the folder. To do so, follow these steps.
Prerequisites:
1. Access the content by navigating to its folder, selecting a language, and clicking on it.
2. Click View Permissions ().
3. Uncheck the box next to Allow this object to inherit permissions.
4. A confirmation message appears. Press OK.
5. You can perform any action on the content that you can perform on a folder. These options are described in Actions You Can Perform from the Permissions Table.