How do I add roles with MVC 4 and forms auth?

Trying to grasp how I should use MVC 4 (VS 2013) with Forms Auth. Heres the steps i took

1. Create a new project ASP .Net MVC 4 > Internet Application (A default ASP.NET MVC 4 project with an account controller that uses forms authentication.).

2. Run app and all runs. I create a user using the public accessible /Account/Register link

3. The code that ran has created 4 tables. webpages_Membership, webpages_OAuthMembership, webpages_Roles, webpages_UsersInRoles. I see my username listed in 1 table and related info in another. Nothing in Roles.

I would like to add a role and restrict the register link to one group. If a user arrives to register page and is not part of the group they receive an error.

I tried adding [Authorize(Roles="Admin")] to one of the methods found under the automatic class generated AccountController but this did not resolve the issue.

I was then considering adding the role manually but i dont know if thats the correct way or if i need to change the web.config file (this seems to be recommended for webforms but couldnt find anything to suggest it's ok for MVC).

Can anyone guide me to add a role and associate it with a user? I have created this base project to expand on so going further i would make similar changes.

What I have tried:

I tried adding [Authorize(Roles="Admin")] to one of the methods found under the automatic class generated AccountController but this did not resolve the issue.

I was then considering adding the role manually but i dont know if thats the correct way or if i need to change the web.config file (this seems to be recommended for webforms but couldnt find anything to suggest it's ok for MVC).

Tags: C#, MVC4, ASP.NET4.0, Membership