Online Appointment Scheduling for Google Calendar ← Knowledge Base How does Frederick sync with Google Calendar? Can I use online scheduling if I manage appointments in a paper calendar? How do I set up and manage appointment reminders? Can I use Frederick to book classes? Is Frederick's online scheduling for Google Calendar really free? Can I enter client appointments manually through Frederick? How do I add a Book Online button to my website? Where can I find a list of my upcoming appointments? How do I insert a link to my booking site in my email signature? Can I make a service available only at certain times?