Event custom fields is a form that you create to harverst group's information. The event custom fields in EasySocial is flexible and allows you to modify the form to your desired output.
You can add field to your form by going to Components > EasySocial > Event > Categories. Then click on which category you want to add the field and click on Custom Field tabs
To add custom field to your form, just drag and drop the field. One the field is in place, you can edit the field as shown in the screenshot below.