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Ment, that's a good idea, but: My map is already 80% complete, so it would be a shame to redo everything. The map's action should take place on land, and the Dungeon serves other purposes. And there are a bunch of other, minor problems. So, this is more of a general solution than one specifically for my map.
Froska, what program should I use to edit the artifact file? Notepad?