Wendersnaven.com (a resource for nwn2 builders)

A great tool for making changes to your area is TerraCoppa, by Tani. The most obvious benefit of this tool is being able to rotate areas, so that north matches with north. Here is Tani's description:

TerraCoppa is a toolset plugin allowing you to copy and rotate parts of one (exterior) area to another, including:

- terrain (heightmap)
- tinting (colors)
- textures
- gras
- water
- objects (creatures, placeables, ...)

of course you could copy objects via toolset as well, but it lacks the ability to copy or rotate terrain (heightmap).

Go grab the tool here:
http://nwvault.ign.com/View.php?view=NWN2PlugIns.Detail&id=25

Documentation is a bit light, but here is a quick rundown on how I got it to work:

1. Install the plug-in and restart the Toolset.
2. Back up your module!
3. Open your module and the area you want to rotate.
4. Create a new external area, of the same size.
5. Launch the plug-in from the Plug-ins menu.
6. Set the first area as the source and the new area as the destination.
7. Leave everything checked.
8. Look for the dropdown at the bottom of the screen and choose the amount you want to rotate the area. (90, 180, 270).
9. Click the green button and let it go.
10. Make sure you bake afterwards.

For additional reading, here is a thread on the forum talking about "North Direction" and rotating the area.
http://nwn2forums.bioware.com/forums/viewtopic.html?topic=558621&forum=1...