On a brainstorm diagram, you can add a comment to a shape. A comment provides additional details about the affinity, cause, idea, or input that the shape represents.
Select the shape to add a comment.
Right-click and then select Insert Comment.
In the comment box, enter a comment.The comment box appears below the shape, as shown in the following image.
Press Tab to see the result.The comment symbol appears inside the shape, as shown in the following image.
After you add a comment, you can view the comment or edit the comment.
To see the comment, hold the mouse pointer on the comment.