You can view your project in this outline mode or by the thumbnails of the media chosen. In this mode, you can right click on each choice to set the first play, delete, rename, etc.
You simply drag your photos, videos, etc up into this window. I haven't renamed the videos here, but let the program name them Movie 1, Movie 2, and Movie 3.
To create a playlist, simply highlight all the movies you want in the playlist and drag them to the playlist area, then create a Play All menu choice.