Im wondering if having scenegraphs work just like a layout would be a good way to go.
I mean since we no longer have to have objects in the layout they will be used in, and a lot of people use asset layouts anyways.
I dunno maybe.
Sub-layouts?
One suggestion if you do use a layout for this Ashley
Make sure that if you go to that layout just to edit something it doesn't run that layout...
Using an empty layout for assets like this gets freakishly annoying as you have to go back to the layout you want to preview.
Then if you do make the mistake of running to asset layout you have to wait a few seconds after closing it as the editor doesn't respond very well to quickly starting another preview.