I'm moving over to Membership, and have several free accounts that I've assigned free, indefinite subscriptions to. Access rights have been set. But when logging in under a free account, the user is not given access. It appears this is because the user hasn't signed up through a gateway. I see reference in the manual to a "Allow Incomplete Signup" setting in Options, but I see no such setting in the current version of Membership. How do I give an existing user free access?