With the release of NL Version 1.7, and the ability to create Maurer Shone X-Cars, I wanted to have a go at it. My coaster has two inversions so far: 1) Usual 180 degree lift, and 2) Zero-g.
Here are two pics of the editor (yes, I got it to work!):
http://www.nolimitsdevcenter.net/i34303
http://www.nolimitsdevcenter.net/i34304
Progress:
Track: 100%
Supports: 5%
Extras/Trees: 0%
Comments, Criticisms, Suggestions. [8D]