To add columns to the query preview:
  1. Click Queries
  2. Click Manage Queries
  3. Click the category where you have stored the query
  4. Click Preview below the name of the query
  5. Click the Choose Columns button (located to the right of the account search bar)
  6. Mark the checkbox for the columns you would like to include in your query preview
  7. Click Apply Changes
To remove columns from the query preview:
  1. Click Queries
  2. Click Manage Queries
  3. Click the category where you have stored the query
  4. Click Preview below the name of the query
  5. Click the Choose Columns button (located to the right of the account search bar)
  6. Unmark the checkbox for the column you do not wish to see in the Preview
  7. Click Apply Changes
Your column choices will stick to this query so you will not have to repeat these steps to see the same columns next time you preview this query.