As previous version of StarUML you can assign a pattern to a class... So if your project works on a specific pattern. just when you create a class, you assigned whic pattern will this class use.. like Singleton.
More than just GoF patterns, it would be really useful if the pattern tool supported data model patterns like those documented by David Hayes and, to some extent, Martin Fowler. For example, the "type" data model pattern recurs in every data model in existence.