To update the security levels for a Video Classification follow the steps below.
1. Click -> Configuration -> Authority Editor.
The Authority File search page will appear.
2. From the dropdown at the top left select "Video Classification".
The Classification security table will appear.
3. Find the video classification you wish to change the security on and click on the 'Edit' icon (highlighted below):
4. Make the desired changes to the security field and hit Save.
The changes will be sent to the records allocated to that video classifications instantly as well as any items added from the time you hit save.