Analogue-sequencer

> No no, sorry. I was thinking about an *optional* extra key 
> for this. You would still have to support a key-chord for 
> the standard machine, but you could also accept the new 
> single-key event for the same thing.

That's a possibility, but without the extra key, there still isn't a
sensible combination of keys to spare.
Chiel's idea of PAGE+part from playlist edit could work, but I prefer
not to have a key with an instantaneous function have a different
function in combination with another key. I'd also rather provide a
direct route to editing playlists outside the current part if at all. If
you have to 'pass through' playlist edit for the current part on your
way to editing a playlist on another part, what happens to any changes
you made in playlist edit before selecting the different part ? And
should an exit from the inactive part playlist edit take you back to
play mode, or to the previous level of playlist edit ? Plenty scope for
confusion...

Cheers,
Colin f