The invention relates to a device to the taking along of at parallel to the longitudinal axis of a flat knitting machine arranged rails (3) along mobile functional elements (4), in particular by Yarn carrier, marked by a taking along finger (13), which with the functional element (4) in and except interference is bringable, by the fact that it in addition at least one switching projection/lead (12, 14) exhibit, which are arranged the taking along finger (13) in direction of travel of the functional element (4) leading or hastening after and are bringable with a switching surface at the functional element (4) for the release of a switching function of the functional element (4) in and except interference.