Moves to the previous item on a wheel.
Namespace: Group.Editor
Void StepPreviousWheelParameter(Int32, Double, Boolean, Boolean, Boolean)
http://[ip]:4430/titan/script/Group/Editor/StepPreviousWheelParameter
wheelIndex: The index of the wheel to step.
timeDelta: The time delta.
fan: if set to
fineMode: if set to
rotateGroup: if set to