Petar is the anyway you can find how to rename the files inside an erp file, for example, I am trying to replace the Williams car with the Mclaren car erps and textures then repaint the Mclaren textures in the williams folder instead of mclaren_ with williams_ then repaint the textures to over come the Martini mirror issue on skin. I managed to replace all the files and textures for the williams to the mclaren car but cannot rename or import into the erp as the new williams.erp file i now have inside the .erp is all mclaren_, can you do your magic to allow renaming of files inside?