The Patterns menu can be found when you right click on a Class or Package in the Packages View, UML Navigator View or the Diagram View.
1. Choose Patterns > Apply or Apply to Classes.
2. The Apply Template Wizard opens:
3. Click Next > button to display any properties the chosen template has (not all templates have properties):
4. Click the Value field for the property to edit it.
5. Click Finish to apply the template.