You need one of these for each scene. It should be placed on a meshless object which has a collision sphere large enough to encompass the scene. You need to check the isVolume box. When someone enters the collision sphere, the scene animation will start.Edit
Unique ID for the scene. Same value must be set on all scene elemants.
The lengh of time, in seconds, that the scene will run for. This needs to be enough time for all of the scene elements to complete their cycles.
The distance, in meters, out to which the Scene Controller is to search for scene elements. Make it a bit bigger than you think you really need.