Overall Event Custom Fields can be added "on the fly" from any event's Overview tab, or under Setup > Miscellaneous > Custom Fields.
- Select the event's Overview tab and click the pencil icon in the Overall Event Custom Fields section.
- In the Edit Event Fields window, click the pencil icon .
- In the Edit Event Custom Fields window, click the plus icon to add a new field.
- Configure the custom field as needed. See Custom Fields for further instructions on custom field types.
- Click Done.
- Click Done again.
- Click Done one more time to complete adding the custom field to your Overall Event Custom Fields.