We represent agencies and clients who share many events. We are always having to manually rebuild the events from one account to the other, even tho they’re identical. It would be amazing to be able to add multiple hosts and have the events appear on their calendars, or to have a feature that lets us copy the event to another account.
Welcome to the Community, @Kristi_Finigan 
I am glad to say that you can copy events between calendars. For this, you just need to export the events from the existing calendar to the CSV file and then import the events from this CSV file to the new calendar:
Give it a try and let us know if this workaround meets your case 