For me too, especially with a cold.
Luckily I wrote some notes when I posted it the first time.
It can be tested on 1 track.
Midi cable between in/out.
Audio T1 : one shots
Midi T1 : Channel 1, CC1 to Control Change 52 (ARM TRACK), value 0, place trigless trigs.
*Fast square lfo with CC1 as dest, ONE mode.
Plays free, hold mode
Should be enough to work, if someone try, don’t hesitate to ask me why it doesn’t.
*I added an lfo because similar CCs are not sent consecutively.
Thanks for the inspiration,
I tried this concept with my my Nord Lead 2 and I personally really dig the results…
I linked your video in the description…
Simple idea for plays free with audio tracks, use to manually play “beds”, atmospherics, spot fills/drops, etc by assigning 1 track across all patterns in your set, then arranging slots for this type of sample, which can then be used with sample locks to first choose the sample to be played, where to play it etc, if it uses slices etc, then you can with a bit of preparation beforehand have quite a flexible way of adding interest and improvisation, introducing the next song by transition etc etc. You can choose by a part basis how to play them, pretty flexible I think. Endless possibilities really.
sounds great dude - lovely stuff. so glad to see the idea was useful 
how many tracks are you using there?
this sounds like a great use for them! i continue to struggle with this aspect - i mean, make a beat: ok… resample and move to the mext beat: ok… do some tweaking and get a bit weird: too easy…
but having something that can really create variety and help transitions feel more interesting is difficult.
more planning, more prep…
All of them 
.
On the audio side I have four three tracks for input a,b,c (which is a,b,c from the NL2) track for are the drums (which is a sliced break with random trig locks)
On tracks 5-7 I am resampling input a-c with different length to each recording set to looping.
On the midi side I have one main arpeggio for each Nord program and one that is a sort of juxtaposition adding off beat melodies…
…wow…must admit…even after years of using ot’s, plays free options are the only terretory i never crossed…time to change this, i guess… 
Another idea, prep some chain slices of say melodic sounds in scale/key of your project, use a couple of tracks, optionally set length of track to 1 step for each, assign the sliced samples to these tracks lay out a trig on each. Then set scene to select slice from these chains, set plays free tracks to quantised to 1/16, now you can tap the buttons and wrangle the xfader for improvised “solos”.
You can experiment with track and note lengths, patterns, locks etc, to come up with interesting ways to play these melodies, and you can of course use the track buffer to capture the magic
A good way of building up variations or improvising, try it with bass, acid, drums, dialog whatever.