Adobe Flash Professional

There are numerous ways you can select frames of an animation, and then move them around on a timeline. Also, there are a lot of different ways you can modify your animation so it plays exactly the way you want it to when you publish your files. The following sections demonstrate many of the different ways you can manipulate your motion tweens in Flash CS4.

Tween layers can contain tween spans, static frames, and blank keyframes. The static and blank frames behave like others in that you can draw on the frame, paste graphics there, import a bitmap to the selected frame, and so on. These spans and frames can be moved within the same layer, or to most other layers.

A tween layer cannot contain IK spans or classic tweens. Although tween spans cannot contain ActionScript (either on the frame or attached to a tweened object), a frame outside of a tween span on a tween layer can contain ActionScript. However, it is a best practice to put all of your code on its own layer called actions (typically the topmost layer on the main Timeline).