Forums-framework.php only for supporters?

Hello,

Does anybody know how to do the Forums plugin available only for supporters?
(does this plugin works in the plugins folder instead of the mu-plugins folder?)

Another thing I am trying to do it´s to make some pages of the principal Site (www.exmpldomain.com) accesible only for supporters, do you know how to do it?

I would appreciate so much your help!

Thank you!

Sabbella