*.Slk and Unit Bottons

Hi. I read a while back about someone who edited a slk file to change the position of the commands buttons (move, stop, hold, attack, patrol) and wanted to know where I can find the slk file for the position of the buttons. Thank you.

It's a txt file and the path is something like Units\Command.txt

Ok, I've found it. I edited the file and used a mpq program to import it into my map under the directory "unit\" but when I played the map nothing had changed. Did I do something wrong? thanks.