We have now completed a new material editor which will save you from manually writing out the material files, they can be now made from the comfort of the editor, we hope to get this out in a patch soon. Also we have the start of a road editor, looks very promising and there is a new 64bit version of Skyline on one of our dev machines, still needs some kicking into place but we hope to get this in the next sub version upgrade.
Here a couple of screen shots:
Material Editor fully working.
Road Editor - early development stage.