Hi Chris,
You no longer need to make a "dummy provider" in AC to have a schedule. Any user in AC can have a schedule. So if you need a column, you can just create a fake low level user (audit level) and make a schedule for them. For example, if you need a "Lab" schedule, just create a user where the first name is "Lab", last name "Lab", user name "Lab", and put any password in you want (you will never login to this account). Once the user is created, you can now create a schedule for them like with any other user.