You can remove any of the existing options (Children, Adults, Seniors) and/or add additional fields.
Additional fields can only be added by Network Administrators in the Lists section under "Bulk Recording Category".
To add the Bulk Category, navigate to Admin->Network Programs, select the bulk program to edit, and scroll down until you see Use Bulk Recording Categories. Select the categories you would like to use, then save the page.
Available Bulk Categories
The system will only allow you to generate this list within a 180 day period. If you select a longer duration, it will automatically set the "End Date" to 180 days after the "Start Date". This prevents the system speed from being affected.