$SCENE SEQ=<RandomP>; <LifetimeParameters> ; <DimensionParameters>; <PathwayParameters>;

Scenes are complex structures, having a common background and one or more tracks for the movements -defined by the $PATH command. Using scenes one can let trains move before/behind each other.

The detailed description of the $SECTION and the $PATH command - together with the other segmentation commands - is in a separate chapter.