oh, okay, that's kind of disappointing, but understandable. thanks for letting me know. My main reason of asking was because 1: I haven't been able to search each thread for the answer her on PC, and 2: I have not found any other websites saying one way or the other on this issue. Thankyou again for answering my question.
on another note.
I know of a couple maps in the fire red ROM labeled Sevii Isle # (Maps 3.50-3.53) that aren't in the game themselves. If I make these accessible in the ROM will they cause any issues? Two of them are 1x1 (Sevii Isle 6 and Sevii Isle 7) and are black tiles, (if you select the tile it comes up as water on the Tile Bank) and the other two are 84x20 and 24x60 and consist of water and rocks. the 84x20 (Sevii isle 8) has a small island in the middle, and a couple tiles are misplaced with a small cliff in the bottom right. While the 26x60 (Sevii Isle 9) is simply water bordered by rocks, with a small cliff in the top right.
the irony is that I want to add four more maps, and luck my there are these four available (and can be renamed with out my previous stated issue, since I want the names of these locations to come up like when you enter any other town, route, etc.), but since they are not normally accessed in the game, I'm afraid to add them and corrupt my ROM (as well as 3-4 months of map editing work).