I am making a website with certain pages viewable to only members. All members must SignUp and I must approve them. My questions are: 1. Can I manually send "invites" to people I want to SignUp? 2. Can I hide the "SignUp" button? I do not want random people signing up. I know that I have to approve/disapprove anyways, but I would like to hide the "SignUp" button all together. 3. If I can not hide the "SignUp" button, can I at least make it so that the "Login" button appears as the default, instead of the "Signup"