In the 'Navigator' inspector you will be able to view and manage all the objects and components present in the scene; you can see their position in the scene hierarchy, in particular the highest object in the list will be the one in the foreground and so on.
From the Navigator it will be possible to:
- Select one or more objects
- Drag objects in the list to change their position relative to other objects on the z axis
- Manage groups of objects by separating groups already created with the 'separate' icon or by combining different objects into a group with the 'group' icon.