Placing 3D assets in 3DGS scene

Hi all, just wondering if/when I can import my own GLB/GLTF/OBJ assets inside an existing scene splat, preserve occlusion/collision reasonably, and publish the result in SuperSplat viewer?

Or would I need to turn the assets into object splats first?

I’m sure there are answers to this question on here somewhere, but I can’t find them…