I just got to know that of the 16 performance parts, 8 can be played live on the keyboard, the other 8 are usable only for sequencer or DAW.
According to Bad Mister from Yamaha, some details regarding the master features of thenonly mode, the performance mode, are not yet fully determined. So the Montage is still in its development stage.

https://yamahasynth.com/index.php?option...=851#reply-5084