Hi RaceDepartment! I am trying to figure out a way to select a subset of cars from a mod and assign it a separate class, so that I can choose separate class from the Opponents Filter of offline session setup. For now, I am trying to follow this guide: http://www.racedepartment.com/threads/rfactor-2-change-ai-names.101816/ but with no luck so far (and an angry wife). I hope someone could give me time saving advice and clarify some questions I have: Roughly, What I am doing right now, is: · Extract .veh files from .mas file · Modify .veh files by adding new ID to the list of Classes and create new .mas file (matching original name) · Create update .rfcmp and install it. Questions: · Is rfcmp component fastest/easiest way to do what I want? What about VMod? · Mod’s original .mas file contains not only .veh file, but also textures, etc. Should my .mas file contain everything from the original .mas file + updated files, or, just changed files is enough? · Is it possible to populate AI grid based on Category, not Class? · Does car class needs to be defined somewhere, other than .veh file? I am asking, because current Class names contain underscores ‘_’, but UI doesn’t show them in the Opponent Filter, so I wonder if either underscores are stripped off or there’s Class’ description somewhere. Is there any debug/diagnostic output in RF2 so that I see how my modifications load? For example, yesterday everything worked in mas2 and mod manager, but cars won't show up in new Class. I wish there was a way to see why. And, totally weird question: do I need online subscription on RF2 to be able to join isiforums? No matter what I do, I don’t get activation mail (even created second email, no luck, just time wasted). Have a good day everyone! Thanks.