If you already have an existing calendar, Spirit can do a one-time bulk import of your events. To do this you'll need your calendar in iCal (.ics) format. Most calendar systems will export calendars in this format. In some systems, this option might appear as "Apple iCal" or ".ics file".
How to export your events in popular systems
Importing events requires the Edit Events permission.
How to import your iCal file
Email you iCal file to email@example.com, include what you would like your default check in window to be (ie - 30 minutes before and event starts until the end of the event) and how many points as default you would like to set for each event.