Two additional query-operators have been added to the rule-concept of EMFTrace.
ModelUndirectedRelatedTo - works just as the existing ModelRelatedTo-operator except for ignoring the directions of relations, which is especially useful for simplifying rules searching for equivalences.
ModelIndirectlyRelatedTo - searches for indirect relations between two models of a certain type. For example, you could use this operator to query the inheritance hierarchy of classes or call-relations between methods more easily.