Some events happen sporadically, and you already know what they need. Instead of duplicating another event, create an event template that can be applied when you create an event.
Only Organization Administrators can create event templates.
Choose Event templates from the settings gear.
Click Add template, and then enter the name of the template.
Click Edit to add tags, location, rooms, and resources.
Click the pencil to rename the event template, or click the trashcan to delete the event template entirely.
Add rooms and resources commonly used for an event of this type, and then click Save.
Make sure to add any required tags, so you don't have to fill them in later.