I understand that , I was actually forgetting that I was using it on BVE trainsim , cos I cant get it to load on open or 4 without complications or a black screen , I have loaded it many times but it wont come up in the menu and it wont select by default .I wanted to know also if it works to swap trains on lines they are made for , like if I cant get the R46 to work on K or Q lines , can I put a R184 in place for the r46 without hassle in open bve ?