You can add comments to the proxy settings while creating or editing the proxy setting. Optionally, you can also add a comment from the Quick Actions menu. Select the proxy setting, and from the Quick Actions menu, click Add Comment.
The comments are helpful in tracking the changes you made to the applications.
To view the comments added to the proxy setting, click View from the Quick Actions menu. On the View Proxy Details page, go to the Action Logs tab, and scroll down to the Comments section.