@MichalHo
You’re right, there isn’t enough space left for all 64 slices in the current MIDI implementation. I don’t really use the rest of the MIDI on the OT, so personally I’d love it if they’d at least give an alternate mode that allows triggering of slices via MIDI note at the expense of some other functionality.
Regarding the whole monophony issue, I just don’t see why triggering these slices via MIDI changes anything. You can already rapidly switch between all 64 slices, as long as you’re using the buttons on the OT itself. There are no issues with note offs or two notes playing at once; as far as I can tell, a new note on on an OT sample channel automatically ends the previous note.
Basically, everything already works, I just wish I had 64 buttons at once instead of groups of 16 to cycle through.