The Pattern Registry is only available from the Pattern Organizer context menu, when you create a new shortcut, or assign a pattern to a shortcut. In the Pattern Registry you can filter patterns by category, metaclass, diagram type, language or status of registration. 

To open the Pattern Registry, do one of the following:

• Right-click a folder and choose New shortcut.
• Right-click a pattern shortcut and choose Assign Pattern.

1. In the Filters section of the Pattern Registry dialog window, click the attribute to filter the patterns.
2. Select the desired value from the drop-down list.