Exporting entire scene


I'm writing an importer for Freeworld3D custom export folders. It's an XML file that I'm parsing through to get important information to generate the exact scene seen in Freeworld3D.

As most things go, it's not all in one tidy package. It's a folder full of stuff. I was wondering if I could export an entire scene into a single .jme object, making my maps much more convenient-to-manage. A scene will eventually include bunches of ImposterNode objects, a TerrainPage, a Skybox, Water, FogState, etc. Would all of that be able to be put into a single .jme file?

I'm also open for other suggestions on how to compact this folder of information into a nice package to be opened by my importer.