Swapping Tween Targets
The motion tween model in Flash Professional is object-based. This means that an object and its motion are independent of each other, and you can easily swap out the target of a motion tween. If, for example, you’d rather see an alien moving around the Stage instead of a rocket ship, you can replace the target of the motion tween with an alien symbol from your Library panel and still preserve the animation.
Drag the movie clip symbol of the alien from the Library panel onto the rocket ship.
Flash asks if you want to replace the existing tween target object with a new object.
Flash replaces the rocket ship with the alien. The motion remains the same, but the target of the motion tween has changed.