Disclosed herein are one or more embodiments that arrange a plurality of location entities into a hierarchy of location descriptors. The armrest is intended to be turned around a pivot axis between a first active position and a second folded-away position. The indicating area has at least two separate demarcating edges which form indicating delineations with respect to the speed scale on the instrument panel. Here, the second time point is different from the first time point. The waveguide is optically coupled to the plasmonic transducer along the elongated side.