Sorry for the late reply, but that Root patch, that comes with the latest beta is a very evil one.
it looks cool, but new users will get lost in understanding what is going on.
The 4 nodes on the top (plant, Fovball, Move and Lamp) are subppatches, you can rightclick to look in side. They Modified them a bit, so the have a S (node) on the place where a patch normaly has a Renderer.
An R (Node) Next the LFO is switching between the 4 different scenes, and another switch (node input) is switching between the vieuws.
The renderer in Root is used to combine the ‘scene’ and the view, makes it a texture, and than the CubeToPano makes the cool/weird polar/little planet look. That texture goes to final quad and renderer.
This could be a proper way to switch your scenes, but all your patches (and its assets like textures) are already loaded. So depending on the size of everything, how many scenes, your system etc… this could be considered a decent way to do it.
If it is for VJ-ing, there COULD be another way. Hope it make sense.