The public app seems to be working great, with one caveat: I initially signed up about 10 students but I have gotten 2 new students so I need to add them to the plan, but I cannot find out where to go to add students to the plan or manage my subscription! Where do I go? I tried going into my profile page but that only allows me to change my email/password, etc. Nothing there about my subscription. I need to add them ASAP!