Specifications

Chapter 6 Using Compositions 89
Open the composition’s timeline window by double-clicking the newly added
composition item in the Media window.
Notice that the content of the Stage window changes when the composition
window appears. Instead of showing the display rectangles, it now shows the
reference frame of the composition. While editing a composition, its preview
appears in the Stage window, temporarily replacing the preview of the
displays. To restore the Stage window to its usual state, select the main timeline
window.
To change the size of the reference frame, or any other composition setting,
choose “Timeline Settings” on the Timeline menu while the composition’s
window is active.
The timeline window of a new
composition.