These windows are specific to the 2D scene editor. For other windows, please see the Common Windows section.
Objects
The objects window shows all of the objects that are in the scene world. To help see things more clearly, you can show/hide objects using the check box.
The up/down arrows can be used to change the order of objects in the scene. This will change the order in which they are drawn, with objects at the bottom of the list being drawn last.
Bitmaps
This window shows all of the bitmaps that you have defined for use in the scene. You can drag a bitmap into the workspace to create another reference to it in the world.