The Comments Debug view shows all comments in the Workflow along with the step number for each. You can use this list to quickly jump to any step of the Workflow for which you've created a comment. You can also use it to add, modify, or remove comments.
To jump to a comment
In the Comments debug window, right-click the comment and click Jump To.
To add a comment
Right-click anywhere in the Comments debug window, and then click Add.
Type the comment in the box.
If you want to place the comment at the end of the Workflow, select Add to bottom of Workflow. Otherwise, the comment will be added to the beginning of the Workflow.
To modify a comment
Right-click the comment, and then click Modify.
Enter the modification and click OK.
To delete a comment
Right-click the comment, and click Remove.