I've seen private server games that had similar log ins such as this one where u had to exit the game play entirely to swap characters in the original games manage to make this feature, and while not having this feature does in fact give me a sense of nostalgia from having played the Sega introduced PC beta for blue burst, it also irritates me now just as much as it did back then. I mean if other private servers (for different games) can mange to include this then I personally think that unless the coding prevents it; it should at least be a feasible project to attempt.