UML Modeling Techniques > Object interaction modeling > Object Animator > How to... > Customize the presentation of an animation > Displaying message names (Object Animator)
  
Displaying message names (Object Animator)
You can show the names of event, operation and IO Flow messages sent by an object. Using the sequence number you can cross-reference messages in the Animator Pane to statements in the History Pane.
To display message names:
1. On the Edit menu, click Options.
2. Select the Messaging check box.
3. Click OK to close Options.
Alternatively:
Click the Messaging toolbar button to show or hide message names.
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By default you show message names.