This is a VERY VERY rough and ready utility that will take as input a .obj model that contains all the objects in your scene.
You can use whatever 3D proggy you want to assemble your scene. The only requirement is that you export your scene to a .obj format file.
The app will create individual models, or clones of models, based on their group name and create a table that records their position and various other properties.
It places all this information in your Documents folder (You need to copy it to your project/media folder)
You can also create paths, points, lights and boundaries that help to facilitate your game mechanics.
There is a function that manages the loading, positioning and properties of your models and delivers these to you in handy dandy tables.
Some very rough and ready doco in the "source" folder
Hopefully this is of some use