The Turning locomotion is a hand locomotion; a Turner can be enabled on each hand of the player via locomotions cycling. As with any other hand locomotion, this must be done for each hand for which you want its locomotion to become active.
A Turner will "snap-turn" (instantly rotate) the player around the y-axis upon input. The number of degrees per turn and point of reference can both be changed. The Turner will recognize different touchpad sides to turn left versus right.