disable or hide mailing lists completely, OG or role based access to each list

Hi,

I am testing this very nifty module, and would like to be able to turn off the mailing lists feature or at least hide it from my members, and only display the mailing lists to those people who should be able to see it. OG or Role-based access to mailing lists and information subscriptions at the top level would make this work for my needs.

Thanks for contributing this! Let me know if you'd like beta testing help.

Cheers,

Tobias