Access Level Management: Can i restrict "Operator" to view certain page such as Alert Profiles, Application/ QOS maps / User managed, etc

Access Level Management: Can i restrict "Operator" to view certain page such as Alert Profiles, Application/ QOS maps / User managed, etc

Greeting, 
As title. I browse through the forum and couldn't find anything about this.

Anyone can guide me how to update manage Access Level? For example, i would like restrict "Operator" to view certain page such as Alert Profiles, Application/ QOS maps / User managed, etc

Thank you.