Moves the current wheel parameter to the previous item.
Namespace: Editor.Shapes
Void Editor.Shapes.StepPreviousWheelParameter(Int32 wheelIndex, Double timeDelta)
http://[ip]:4430/titan/script/2/Editor/Shapes/StepPreviousWheelParameter?wheelIndex={titanId}&timeDelta={double}
wheelIndex ( Int32 ) : The index of the wheel that has moved.
timeDelta ( Double ) : The time delta.