Sync calendar with websites

Hi
I want to do the following, based on your Plugin description.

“Sync your calendars to Airbnb, FlipKey and other VR sites (iCalendar)

Exporting to Booking.com, Airbnb, FlipKey

Do you feature your holiday home on multiple websites and need to sync availability data from one website to the other? With WP Simple Booking Calendar you can easily export the data from your calendars to Airbnb, FlipKey, Google Calendar and other websites.”

I purchased the premium version a while ago. Can you tell me how to do this, please? I can’t see settings to change or code to copy and paste.

Thanks

https://www.ads-software.com/plugins/wp-simple-booking-calendar/