What have you tried so far?
This is the Magus source code:
https://www.mpgh.net/forum/showthread.php?t=1347453
The file you'll need to change seems to be located MagusAS3>magus>Root.as
@emoric28 might be able to advise better, but I think we're both a bit out-of-the-loop now, we've moved on to other things.
I'm sure you or somebody else active on the forum can step up to the plate and release something, it's just about having patience and the willingness to learn.
I think just about every developer that came out of this forum started off knowing nothing or very little. There's a lot of resources around that can help