Different Menus for Different User Roles

I have this plugin and tried it with “is_user_logged_in()” and it works great.

But, I don’t know how to write Conditions for what I need.

I have a Public Menu available to everyone.

I also want to reveal two additional menus based on User Role:

“Subscriber” sees Public menu and Subscriber menu.

“Contributor” sees Public, Subscriber, and Contributor menus (shown in Header, Sub-Header, and Footer).

http://ellevoit.com/

Can someone help?

http://wordpress.org/extend/plugins/menu-items-visibility-control/