Scene C branches to a group of scenes that each contain several sub-scenes. At the end of the last sub-scene, the movie returns to Scene C.
The go to command goes to the sub-scenes. Scene C1.a through C1.c, in this movie, use the command go to frame followed by a marker label to go to other sub-scenes. Scenes C2.a through C2.c, in the movie called Nav-External, use the command go to movie "Nav-External.dir" to jump to the that movie.
