Defines a new direction setting. The DirChar is the single character used to reference this direction when speedwalking. The second character in this string is the reverse character if used. The DirCommand is a string list of commands assigned to this direction. The MapDir is the physical mapper direction assigned to this direction and is optional.
Legal Mapdir values are: n, ne, e, se, s, sw, w, nw, u, d, other