Through Sphere's Batch Update function:
  1. Go to Contacts->Individuals
  2. Click "Advanced Search"
  3. Expand Communities->Special Events->Friends Asking Friends
  4. Click "Choose Event" for Kintera Thon
  5. Select Event
  6. Select Participants and click Add
  7. Run Query
  8. Select all records (they will have a check in the box)
  9. Click Batch Update
  10. Click Update All Query Records
  11. Click Profile Fields Only
  12. At the bottom of the page, enter the value (all records will have to have the same value)
  13. Click Save
  14. Click OK
Through the Export/Import function:

  1. Go to Contacts->Individuals
  2. Click "Advanced Search"
  3. Expand Communities->Special Events->Friends Asking Friends
  4. Click "Choose Event" for Kintera Thon
  5. Select Event
  6. Select Participants and click Add
  7. Run Query
  8. Click "Choose Columns"
  9. Add "Supporter ID" and custom fields you wish to update
  10. Click "Export CSV"
  11. Make changes (all records can have different values)
  12. Go to Contacts->Database Management->Manage Contacts->Import Contacts
  13. Click "New Import Batch"
  14. Select the file
  15. Select "Update based on Supporter ID"
  16. Run the import