Go to Manage Schedule > Schedule > Available Time. A window will appear allowing you to select your availability. You can also decide to set repeat available times by checking Repeat and selecting the appropriate repeat parameters. Click Save after selecting the start and end time. Once saved, the available time will appear blue on your calendar.
To divide available time into increments such as 30 min, 60 min, etc., click on the Drop Down box Labeled “Do you want this block broken into session increments?” This “Increments” dropdown will populate with session type durations. Session types must be created to utilize this option.