displays an image of a mandrill. Click OK. [View full size image] 5. Repeat steps 3 and 4 to swap the video file for the Over and Down frames. Note You do not need to swap video files for the Hit frame, because the Hit state is not displayed; it just determines the active area of the button. 6. Scrub the Timeline. The thumbnail is different from that in the first button, but the filter and property adjustments remain the same. 7. Repeat steps 1-5 to create buttons named video_button3 and video_button4, applying images from the Video Button 3 and Video Button 4 folders, respectively. 8. Click Scene 1 to return to the main Timeline. 9. Select the Video Button 1 layer, and then select the first video button on the Stage. 10. In the Property inspector, name the instance video_button1. 11. Select the Video Button 2 layer, and then select the second video button on the Stage. 12. In the Property inspector, click Swap. Select the video_button2 symbol, and click OK. Note Be sure to select video_button2 in the Swap Symbol dialog box, and not Video Button 2. 13. Select Button from the Instance Behavior pop-up menu (Movie Clip is currently displayed). Type video_button2 for the instance name, if it isn't already there. [View full size image] 14. Repeat steps 11-13 for the third and fourth buttons. 15. Lock the Video Button 1, Video Button 2, Video Button 3, and Video Button 4 layers. [View full size image] 16. Choose Control > Test Movie. As you move the mouse over the thumbnails, they should display the appropriate Up, Down, and Over states. Close the preview window. Extending the Timeline Currently, many layers contain just a single frame. You need to create new layers for frame labels, the pop-up video of the zookeeper, and the video player. Then, add frames to all the layers so that they each have at least 50 frames. Next, you'll label frames and add stop actions so that the script will stop while the movie plays. 1. Select the Sound Buttons layer, and click the Insert Layer icon three times. Name the new layers Labels, Pop Up Video, and Video Player. 2.