You can add or remove the desired performance rating scale in the questionnaire designer.
Step 1: Open the rating scale editor
Open the questionnaire designer for your project, and then click to edit the rating scale.
Step 2: Update the questionnaire to add or remove the desired performance scale
You can choose whether or to include the desired performance as shown below.
If you do include it, you can also customize the labels used for the current and desired performance rating scales.