This chapter is from the book 
                    
                    
                
            Previewing the effects
It’s time to preview all of the effects together.
- Click the Explore Hawaii tab in the Timeline panel to switch to the main composition. Press the Home key or drag the current-time indicator to make sure you’re at the beginning of the time ruler. 
- Make sure the Video switch (  ) is selected for both layers in the Explore Hawaii Timeline panel. ) is selected for both layers in the Explore Hawaii Timeline panel.
- Click the Play button (  ) in the Preview panel, or press the spacebar, to watch the preview. Press the spacebar to stop playback at any time. ) in the Preview panel, or press the spacebar, to watch the preview. Press the spacebar to stop playback at any time.

