1. When adding the event, mark the box to allow designations on fees.
  2. Go to the Designations tab.  
  3. Add both designations and mark one as the default.
  4. Add registrations on the Registrations tab.
  5. Once you register someone, click on their registration, then go to the Designations tab on their registration.
  6. Click Edit and change the designations from just the default designation to both designations.  
  7. Enter the amount that should go to both designations and click Save.