You can load props now as well in CC3, but unfortunately you cannot save that as a scene (has been requested). They would have to be iProps, so FBX files would need to be converted using 3DXchange.
To build your scene, first make sure that your character is loaded.
Then go to File ==> Import and navigate to the prop(s) you want to load. You can also drag and drop props in the scene. Reposition the props as desired.