WTH I would like to nest a Scenes within other Scenes

I would like to be able to nest one scene within another scene so I can activate them all at once and only keep track of devices in one bottom level scenes.

As an example. I have a scene for all lights on in the kitchen and a scene for all lights on in the bedroom. I would like to set a scene that says all lights on everywhere and just include those two sub-scenes instead of adding all the devices and their states all over again. Even more so to turn off all the lights in the house.