Summary

Prefabs are a predefined group of placeables positioned in a coherent manner.

Once you place a prefab on a map, all placeables from the prefab are grouped together and can be moved / rotated together.

Create your own prefab

1. Select multiple placeables
2. Right click > Group
   • Give it a nice name
   • This name will be used as the tag and resref of the prefab
3. Disable height lock for the group
4. Right click > Export group

   • Save it under Program Files/Atari/Neverwinter Nights 2/NWN2Toolset/Prefabs (should be the default folder).

5. Move the .pfb file from Program Files/Atari/Neverwinter Nights 2/NWN2Toolset/Prefabs to Document/Neverwinter Nights 2/Override, otherwise the prefab won't appear the next time you open the toolset.
6. Optional: By default, the prefab has no name nor classification. You have to edit the PFB file using a GFF editor. 
   • tlkedit2 does not open PFB files, but you cange the prefab extension to .git in order to open / modify it. Don't forget to change back to .pfb when you're done.