An exemplary lockset includes a mortise case, a magnet assembly mounted in the mortise case, and a manual actuator operable to move the magnet assembly between a coupling position in which a first magnet of the magnet assembly is aligned with a reference point and a decoupling position in which the first magnet is misaligned with the reference point. In certain embodiments, the magnet assembly further includes a second magnet having an opposite polarity as the first magnet, and the second magnet is misaligned with the reference point when the magnet assembly is in the coupling position and is aligned with the reference point when the magnet assembly is in the decoupling position.