To set the length of our movie and
to show you how to alter the timeline, right-click on frame 80
in Layer 1.
Select Insert Frame from the menu that appears by left-clicking
The frames between 1 and 80 will then be bordered with a rectangle.
Each frame lasts 1/12th of a second (although you can change
this) so you now have a movie that will last around 7 seconds.
However, if you look at the stage, there is nothing in the movie
yet. Your next task is to add some content.