This task is all about preparing your Timeline for the final output of a major or large project. As mentioned in previous projects, most films, documentaries, or whatever it is that you are making, are created as separate scenes on separate Timeline sequences.
One Timeline sequence should always equal one scene.
This helps the video editor when trying to cope with an unwieldy 60 to 90 minute Timeline, where small changes at one end can have a drastic knock-on effect at the other. Even if your movie is just 10 or 15 minutes long, you should consider separating each scene into different Timeline sequences simply to avoid frustrating errors from creeping in. If you want to play mega-safe, you can create a separate project for each scene to combat the dreaded 'Scene failed to load' error message.
The preferred method of editing is to create separate Timeline sequences or separate projects with each one representing a separate scene. In this next task...