How to control users to access selected resources in NBU Admin Console

Hi, my customer's master server is NBU 7.5.0.6 on Windows Server 2008 R2. Recently they want to give some of their users access to the NBU admin console but they want to limit the users to be only able to view selected resources.

E.g., user A is administrator of server 1 so he should only see backup policy of server 1 and related resources when he login to NBU admin console; similarly user B should only see backup policy of server 2 if he is administrator of server 2.

Is it possible to implment this in NBU admin console? If no, are there any other possible ways to implement this in NBU? Thanks in advance.