There really isn't any "tiered" user roles within the admin server per se. You're either admin or you're not.
What you could do, if you are interested in only specific information, is that you could reference the AMX Beans directly and create a web app with a page showing information of interest. AMX Beans are Glassfish's version of JMX MBeans.
Consider referring to:
https://glassfish.dev.java.net/javaee5/amx/docs/amx.html
Pretty much everything on the GUI Console is available via an AMX bean, but it may take some digging to find precisely the measures you're looking for.
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