Adam Frisby This comes 100% unsupported, but I wrote a tool to clean the materials that the OAR Converter tool produces. It de-duplicates textures, which I'm hearing produces good results on cutting the filesizes of those regions. It just MD5Sums the files, if they match, it merges them. Drop that into a folder named 'Editor' in your project (any folder as long as the name is 'Editor'). Then you should get a Space/Tools/OAR Material Cleanup menu item. This is used AFTER the OAR converted contents have been loaded and the materials created. It just standardises the materials that use copies of the same texture so they all use one single texture, thus reducing the file size of a Sine.space build. When you run it (again, 100% unsupported, take backups! although I hear it works) - will remove all the duplicates in your region.