Motion Negate
The Negate behavior inverts the value of each keyframe and behavior effect in the parameter to which it’s applied by multiplying the parameter by –1. The Negate behavior basically flips each parameter value to its opposite. Animation paths are flipped, rotation is reversed, and any effect’s parameter is changed to its opposite.
For example, applying the Negate behavior to the Position parameter of an object with an animation path results in the animation path moving to the opposite quadrant of the Canvas.
Note: If you want to reverse the motion taking place on an animation path, rather than flipping the shape of the animation path itself, use the Reverse parameter behavior.
Adjust this behavior using the control in the Behaviors Inspector:
Apply To: A pop-up menu that shows the parameter affected, and that can be used to reassign the behavior to another parameter.