You can delete a rating from the rating settings form or from the list of ratings. You can delete several ratings in the list.
Deleting a single rating
Go to the rating by clicking on the cell in the rating table.
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Click on the icon ... next to the Save button.
Click on the Delete button that appears and select Done in the confirmation window.
Deleting multiple ratings
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Select ratings by checking the box in the rating line.
Click the Delete button in the Actions menu and select Done in the confirmation window.