Allen, you need to make copies of the component(s) placed at points along the path of movement.
In the case of the swinging doors I made a total of seven copies spaced evenly through 120° (20° apart). Each instance of the door was moved to its own layer, i.e. the doors in the closed position were moved from Layer 0 to Layer 1. The next door instances (opened to 20°) were moved to Layer 2. The door instances at 40° were moved to Layer 3 and so on.
After the all the door instances were moved to their own layers, I turned on the layers one at a time and made a scene. Layer 0 remained turned on through out because it had the case. for Scene1, I turned on Layer 1 but Layers 2 through 7 were turned off. Scene2 had Layer 2 turned on but Layers 1 and 3-7 turned off; Scene3 had Layer 3 on, 1,2 and 4-7 off and so.
Does that help to clarify things?
I'll send a PM in a moment.
Dave