So all these objects are not spawned but start in the layout?
The object list only gives you the parent information, you need to select the individual instance to set it's specific values.
I put everything outside the layout, I make my margins giant and use CTRL-MouseWheel to scroll way in/out
Anything that is spawned-only like, bullets, explosions, enemies etc.. I immediately destroy OnStart of Layout, but then I would only have one of that object in my Layout.