Right-click the connector to open the shortcut menu, and select Display > Display Messages.
On the diagram toolbar, click Image Modified,and select Display Messages.
Image Modified
In the opened Select Messages dialog, select the messages you want to display, and click OK. Image Modified Messages of the selected connector are displayed on the diagram pane. Image Modified
The model used in the figures of this page is the Communication diagram sample model that comes with MagicDraw. To open this sample do one of the following: