How do I enable the .NET Roles section in IIS?

I watch a tutorial video and they show how to add roles using the .NET Roles section in IIS. I don't see this section in my IIS 7. I guess I need to enable it somewhere. How do I force .NET roles to show in IIS?

update: There is also a .NET Users and .NET Profiles section that is not displayed. They are connected, so I think whatever allows Roles will allow others.