How to attach/remove a comment to a cell (Model)
You would like to write a comment to describe a number or remove it, here's how
Make sure to be in the Base Alternative/Strategic Building Block/Strategic Alternative → Cash Flow.
Navigate deep enough in the navigation tree on the left side of the screen to reach more easily the entity you want to make the change in (Division → Site → Sub-industry → Category).
Once you found the cell you would like to add a comment to, click on it to select it, right-click, and click on Add Comment...
In the window that opens, write your comment, and click somewhere else on the grid.
To remove that comment, click on the cell again, right-click, and click on Delete Comment.
To indicate it, cells with comments will display a small black triangle in the top right corner of the cell.