The Mac version don't have the record audio or audio track yet it should be in the next version out very soon. You only have the ACW Button to import the chords from audio files.
There is a lot of stuff in the manual that only applies to the win version.
Not sure if you can use a vst wav player, vst
Audio files player in the Mac version, the win version can't because it don't send the tempo and Song Position Pointer to the vst. If I get a chance will try it tomorrow on the Mac.