Comments in Openbox work much like those in Excel. You can add a comment to any block in the main window, and it will show up as a red triangle in the top right of the block. You can also delete it using the “Delete Comment” command in the Ribbon, or the “Delete All” command.

Any comments in the Openbox model will be transferred to the Excel model. For example, if you put a comment on the “Revenue ” block in Openbox, and the label for that is in cell Operations!E25 in your Excel model, the comment will appear in that cell as a cell comment.