Package Comment Pane
The Package Comment Pane displays the package comment (if available) for the currently selected package. If you make changes to a comment you can commit them using Workspace/Accept or Ctrl+S. If you have more than one package selected the comment pane will be empty and disabled.
Note that although the comment pane is normally used for entering or browsing comments, it is also a workspace so the various workspace operations can be used here too. This is useful if you wish to provide examples within the comment then readers will be able to execute any lines of Smalltalk in-situ.