Recognized UML elements will appear in your diagrams with light grey naming boxes near or inside them:

To change the name of an element, use the Tablet PC pen to tap within the naming box. The Renaming dialog will appear:

This dialog will let you enter a new name and Stereotype.
Note that the same naming mechanism is used to add the text within Notes, but the Name: field is much larger and allows multiple lines of text.
For other ways of naming items and editing contents, see Content Editing Modes.
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Copyright © 2006 by Martin L. Shoemaker/The Tablet UML Company.