It seems absurd that a Client that I already have in my contacts list can not be offered a SINGLE CLICK method of joining an additional mailing list Directly from an eMail, or from a confirmation webpage with a single clink link from the email, rather than requiring the client to load a Sign-up tools web page, so that they can reenter ALL their contact data, they should be able to merely toggle a radio button on or off to join an additional list!