You can schedule repeating events in Gazelle. Look for the "Repeats" checkbox near the end of the booking workflow.
Repeating events can only be scheduled if you are manually booking a new event. Using Smart Routes does not provide this option.
Tip: All repeating events need an end date. We recommend keeping your repeating event end dates as short/realistic as possible. Scheduling thousands of repeating events can affect the performance of your calendar.