Scenes and Enhanced Scenes are used in the Assembly Design workbench to save and recall different "configurations" of the parts within the assembly.
Scenes include Position, Hide/Show, and Viewing direction.
So one Scene might be a side view of all the parts in their normal position.
Another Scene might be a top view, with the cover in it's open position and the lever rotated to it's max position.
A a third Scene might be an isometric view with all the parts exploded and the cover removed.