You can add comments to the DNS override record while creating or editing the DNS override record. Optionally, you can also add a comment from the Quick Actions menu. Select a new DNS override record, and from the Quick Actions menu, click Add Comment.
The comments are helpful to track the changes you made to the applications.
To view the comments added to the DNS override record, click View from the Quick Actions menu. On the DNS Override Record Details page, go to the Action Log tab, and scroll down to the Comments section.