How to setup multi users in Nagios and different priviliege

Nagios Nagios Configuration support
1

I want to setup multi users in Nagios, some has administrator privilege, and others can view the detail of host/service, but cannot change settings.
In Nagios, I cannot find where can I do it.

2

nagios.sourceforge.net/docs/3_0/cgiauth.html goes into this in some detail.

HTH

/S