The video below provides a detailed explanation of how you can comment on entries:

1. Open the entry in which you would like to write a comment.
2. Click on the message bubble at the top-right corner of the entry. Then click +add comment.
3. Write your comment in the popup window.
4. When you finish, click Reply to post the comment.
5. You can check all the comments on the Dashboard page. Click on the Inbox button and a dropdown menu will appear with inbox for comments received and outbox for comments sent.