Well i was going to write on the Maratis forum, but will say that. The problem with the exporter is:
1 – the object must be at the center of the screen(0,0,0) or else the boundary will become bigger and the pivot away from the center of the object.
2 – you cant export more than one object at a time, for example, you could have a series of different objects and you want to export them at the same time, but with different names, different meshes.
3 – you may want to build directly the map inside the blender, but again the export will be one big mesh, but you want to select the objects in the editor after you exported.
I guess the first one is more critical, but im only saying. 🙂