Starting Mantis 1.1.0a4, it is possible to add your own custom relationships. This means that you are no longer limited by “related to”, “parent of”, “child of”, “duplicate of” and “has duplicate”. Although the standard relationships ought to be enough for most users, we always aim to provide extensibility to allow Mantis users to customize their installations. Custom relationships are first class citizens in terms of being supported in View Issues page, relationship graphs, filters and email notifications; the same way native relationships are supported.
See wiki for detailed description of how to add “origin of” and “originates from” relationships.
This feature was contributed by kratib and integrated by grangeway.