Is there a way to ask matrix only to return results matching a query when said results are the lowest price available for the defined routes / dates from any queried carrier? Many of us have companion tickets or other instruments whose use is constrained by the instrument provider to be limited to only the lowest available fares for a date / route combination.

Ie. A user may want to search a route, but may only be interested in results that are both the lowest available fare *and* being marketed by the airline they typically wish to credit their flights to.