Events cancelled/postponed due to COVID19

Hi
Google has emailed me the following:
Update your canceled, postponed, or virtual events in Search
In the current environment and status of COVID-19 around the world, many events are being canceled, postponed, or moved to virtual formats. Google wants to show users the latest, most accurate information about your events in this fast-changing environment, and so we’ve added some new, optional properties to our developer documentation to help. These properties apply to all regions and languages. This is one part of our overall efforts in schema updates needed to support publishers and users. Here are some important tips on keeping Google and users up to date on your events:
• Add the eventStatus property: Use this property to tell Google that the event has been canceled, postponed, rescheduled, or happening as planned. Learn more.
• If your event is virtual, specify VirtualLocation for the event location and OnlineEventAttendanceMode for the eventAttendanceMode property.
• Update Google when your event pages change: Provide a sitemap to Google, and keep the lastmod attributes up to date. If your site host generates your sitemap automatically, it’s taken care of for you.
We understand this is a very difficult and complex time for everyone. We hope you’ll help us update your events so that we can continue to be helpful and show the most up-to-date information for users. We’ve included resources below to help you get started.
I have many events which are being cancelled/postponed. How do I implement the eventstatus on my Geodirectory events?
Thanks in advance for your help!
Linda