1. Select Reports, Event Management Reports
  2. Open a Seating Arrangements report
  3. Search for and include the specific event by using the binoculars
  4. If Registered participants as of is marked, unmark it
  5. Enter all other appropriate parameters
  6. Click Print or Preview

    OR
  1. Select Records, Events
  2. Open the event
  3. Select the Participants tab
  4. Double click on a participant that should be marked as Registered
  5. Change the Registration status to Registered
Note: The Registration status can also be changed globally using the following solution: How to globally change Registration status from Not Registered to Registered