I don't believe that there is any automatic Transposition available in the Mac version as of yet.

However, you can change the keysignature dropdown to another key, say yes to the little prompt window that should pop up and it will instantly transpose to the selected key. One at a time.

Saving the song in each key with an altered filename can let you store them all in one folder for playback one after another in practice sessions.

Ex:

song_C.mgu

song_F.mgu

song_Bb.mgu

etc.


--Mac