HUH????
Why not just rotate your drawing to the direction you need it, regenerate the toolpaths and repost the program??? Should only take a minute....
You don't have to "redo" your toolpaths... simply regenerate them ....
... of course if you set a WCS and it's going the wrong way... still simple to fix. Even if you had to set a new WCS, you only need to adjust the toolpaths to use the "new" WCS by flipping the plane select. Bottom line, you should'nt have to redo all your toolpaths...
It's just a part..... cutter still goes round and round....