You will need the Full Write Events permission to perform this action.
Organizers have special privileges within an event to manage areas such as the guest list and attendance data such as check-in logs. They can also update the image on the event.
The list of current organizers appears in the right hand column when viewing an event in the box titled "Organizers."
To add a new organizer, navigate to the appropriate event and select "Add organizer" from the "Actions" menu in the top right.
A pop up will appear where you can search for a person to add as an organizer. If you are adding multiple, check the "Keep open and add another" option.
After selecting a person, click on the "Add" button to add them as an organizer.
To delete an existing organizer, click on the "X" button located next to their name in the Organizers box. Note that there must always be at least one organizer on an event so you will not be able to delete an organizer if they are the only one.