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build 20080604 - open the Design Center (Alt+Shift+W or Window->Other->UML Design Center) if not yet open - expand the Design Center node - right click on DesignPatternCatalog and select New->Project - click OK on the Create Design Center Project dialog to accept the default project name - click OK to accept the default class name on the New Wizard dialog Result: the class diagram is created and open - from the diagram window, right click and select "Select in Model" but the diagram is not selected in the design center project.
also exists in 6.5
*** Issue 87628 has been marked as a duplicate of this issue. ***