No you can't. Also, it's highly unlikely you'd get the result you're hoping for as the pivot of each of your atoms is probably centered and you will simply get "smaller parts" and would need to realign everything.
I know not everyone wants to dive into Unity. But if you're THAT motivated to make a custom book shelf out of various atoms. I'd recommend you do the same in Unity and create a prefab.
1 - You'll get a lighter scene
2 - You'll have a lightweight asset with proper textures
3 - It won't be a nightmare to build with the very limiting UI/UX of VAM.