[ART] Editing or adding new textures to objects

[Ongka]

Go to Entities -> pick a model -> look for the ".dds" file with the same name as the entity and convert it to an imagefile which you can edit. To save the new texture just convert it back to ".dds".
There are a plenty of converters out there. If you have CS5 or CS6 there are plugins which allow you to open .dds files directly with photoshop.
Remember to make a backup of the original files, you may just copy the entity folder of the entity you're going to reskin.