Layers and animation enhancements

With the redesigned Timeline, smart motion guides, and updated layer controls, Flash 4 reduces the time it takes to create web animation:

The Create Motion Tween command lets you create a motion tween in one step. Motion-tweened objects automatically snap to a motion path drawn on a motion guide layer. You can also link and unlink multiple layers to a motion guide or mask layers. See Tweening instances, groups, and type.
Updated layer controls let you easily hide, display, lock, and unlock layers. Outline colors mode lets you easily distinguish the objects on a layer from other objects in the movie. See Viewing layers.
Drag the Timeline to its own window or dock it to any side of the application window. See Using the Timeline