Multi-way calendar sync
The multi-way sync allows to sync of multiple calendars under the same sync rules.
Example:
You have 3 work calendars and a personal calendar. You want to sync all calendars by showing 'Busy' for cloned events. You could create a multi-way sync by selecting the calendars you want to sync. OneCal handles the rest.
Good To Know
A multi-way sync can include up to 8 calendars. If you need to sync more calendars with the same rules, create additional syncs.