Checklist comments are used to state if a checklist point is compliant/non-compliant. 

Step 1: Select Checklist Comments then Add New Comment

Step 2: Add the comment which will be something like Compliant/Non-Compliant. Then choose if you want that comment to automatically create an audit item/NC. If you do then select what category of NC it might create as in Minor, Major or critical, whatever categories you have setup. And lastly if you want that comment to open up a comment box so you can input a note to that checklist. Once done select Save  

Step 3: Your comments will look like this in your table. Simply repeat the steps above to add more comment options.