What are the possible sync settings in the Google Calendar automation?

These are the sync settings currently available on the Google Calendar automation:

• Syncing timeframe
• Default calendar event duration
• Guests who should receive an invitation when an event is created or updated
• Sync frequency
• Add Notion link below every calendar event description
• Allow event deletion
• Sync Notion entries that were created before the first sync
• Ignore Notion entries that are currently linked with other automations