Azure AD + Auth0 for authentication and authorization

We are trying to config Azure AD + Auth0 for authentication and authorization using Angular for front end.
My question is mainly for authorization. How can I configure Azure AD organization for authorization. Some of Azure AD organization members will be admin and some will be normal users group.

Question1
I know that I can use Rules to set up roles to user metadata and use them in client side. But I dont know how can I know certain Azure AD organization members belong to admins group or users group etc.

Question2
How can I set up with Roles or Authorization Extension to distinguish Azure AD organization admins and users group?

Please share me any useful links or tutorials or answers about above questions.