How to create .pcx palette file with mmf2?

When it comes to editing 256 color images or palettes, my favorite tool is ProMotion. It has very extensive palette editing options and also helps when converting images or mapping palettes together.
Its not free though.
http://www.cosmigo.com/promotion/index.php

If you're looking for a free tool you might want to try.
http://code.google.com/p/grafx2/
Has some decent palette editing options. Its very much like the old deluxe paint on amiga.

Both these programs will save pcx or some of the other image formats that can be imported into mmf as a palette.

Basicly what I am looking for is a way to create it by mmf2. The cosmigo looked good, but I am not going to pay.. I found out from looki that it can be done by writing the data with binary object, but I hope I get something from him to help me :)