If you use Redtail CRM's Seminar Management tool, one of the fields you use when working with Seminars is Seminar Attendee Status.
To add a new Seminar Attendee Status to your database, first go to Manage Your Account:
Then, select Manage Database Lists:
The body of the Manage Database Lists page is controlled by which List you have selected in the Manage Lists column on the right:
After you've clicked Attendee Statuses, your page will display this list. Below is an example Seminar Attendee Status list:
You can add new Statuses by clicking the add button in the top right corner. You'll then see the below modal:
Just type in the name for your new Status and click Add Attendee Status.
Seminar Attendee Statuses have both Edit and Delete options available from their Actions menu, meaning you can edit their name or delete them entirely.
After adding your Status, it will then be available to apply to your seminar attendees.