Instance or subclass of

[vostrnad]

The graph builder is tremendously useful for traversing the subclasses of a class, however it's not possible to traverse the superclasses of an entity that's an instance, as the first level uses "instance of" instead of "subclass of". Same goes for the reverse direction where it's only possible to find direct instances of a class, but not instances of subclasses.

This could be solved e.g. by adding a special traversal property "instance or subclass of" that would provide this functionality.