Change the span of frames in a layer

1 In the Timeline, scrub the playhead (drag it back and forth across the Timeline) to view different sections of the video.

2 The background, which is only in Frame 1, disappears when the playhead moves to subsequent frames. To extend the background frames, right-click (Windows) or Control-click (Macintosh) Frame 1 of the Background layer and select Copy Frames from the context menu.

3 In the Timeline, go to the last keyframe of the Video layer. Identify the corresponding frame number in the Background layer. Right-click (Windows) or Control-click (Macintosh) the corresponding frame number in the Background layer, and select Paste Frames. For example, if the Video layer extends to Frame 300, you’d copy the keyframe in Frame 300 of the Background layer.

The Background layer extends the length of the Video layer.

4 After saving the document, select Control > Test Movie to test how the video appears in Flash Player.