This policy setting restricts the list of Accelerators that users can access only to the set deployed through Group Policy. ...

This policy setting restricts the list of Accelerators that users can access only to the set deployed through Group Policy.  

If you enable this policy, users can only access Accelerators that are deployed through Group Policy.  Users will not be able to add or delete Accelerators.

If you disable or do not configure this policy, users will have access to any Accelerators they have installed.