Timeline header controls
To complete the in-depth examination of the Timeline, let’s look at the track header controls at the left. A summary of the five controls follows:
- The Drag track handle lets you reposition tracks up or down in the Timeline. Dragging this control completely out of the Timeline deletes that track and its contents.
- Lock track prevents you from making any edits to the position or timing of clips on that track, but it doesn’t prevent you from making grades.
- Disable track turns off the contents of that track.
- Mute track mutes any audio associated with that track.
Underneath these controls, a Filmstrip Visibility button lets you toggle a filmstrip view on and off. The filmstrip shows you a series of thumbnails under each track that provides a clear visual reference of the contents of each clip.