after having read all the old posts on this topic I didn't succeed in solving this problem.
in Max 6.1.2 (as in the older versions) no command shortcut appears to me in the menu arrange>route patch chords.
I'm on Mac OSX 10.6.8.
I've tried to remove preferences, and re-installing max6, with no results. the old cmd-shift-Y doesn't work
On the other hand it still works on Max5.
Operating this command via mouse is very annoying and time waste...
so, thank you for any help