Long awaited option is here!
Now, you can hide your events if you don’t need them in your widget for a little while.
You will find this option on your widget Content tab → choose the event → Actions → Hide:
How do you find this option, guys? Do share your feedback 
Great addition. I was just about to delete an event that has been postponed due to bad weather. Now I can just hide it and change the date when it is re-confirmed! Thank you!
Awesome to hear that this option came in handy!! Thanks a lot for sharing with us, @user1559! 
In case you have other ideas on how we could enhance this app, feel welcome to leave them in our Wishlist: Event Calendar - Elfsight Community. We’re happy to consider and release the features you’re waiting for 