you must use Noggit command line tools like saying here http://www.mmowned.com/forums/model-...-changing.html
or wait for the next release of mine recoded Noggit =)
I see that adding new objects to the map is main problem.
Ok, if you wanna do this easy, I keep my work only for adding "Object injecting tool" to Noggit.
It needs a lot of work but I try it for you all!!! =)