How do I prompt an inspector to leave a comment when a question is answered N/A?

Prompting a comment for N/A responses

1. Click on the question you want to edit
2. In the pop up window, you'll see a Require comment on N/A checkbox. This will require the inspector to leave a comment when this question is answered N/A
3. Tick the checkbox to enable this setting
4. Your changes will be automatically saved when you close the pop-up window