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Korg Gadget Stockholm - play-to-end/run mode
Hey, I just sent this as a support request to Korg, but thought I might mention it here too, make sure what I'm asking for isn't already covered or is a silly idea.
In Stockholm the default mode is 'preview' mode when on the Rex page. Tap and hold on a slice and it'll play, and keep playing all slices from where you tapped. If you're careful with clean taps you can do nice DnB style breakbeat cut-ups.
Unfortunately you can't record this; the preview tap events don't send data to the piano roll.
Ideally we'd be able to record this, or have a toggle on the keyboard/pad page that's like a 'run' mode for the arpeggiator, which means 'keep playing subsequent slices until the note is released'.
The closest at the moment is the loop trigger options on the lowest octave of the keyboard, but that only allows you to trigger from the first slice.
Made a little video to show how handy the preview one is, and also indirectly show that this mode would need some quantizing and better handling of key up/key down ordering, it tricky right now to stay on-beat.
https://drive.google.com/open?id=1AZXy2ErIBvGZJZNoQ-_ligHnOc0Hm58k
Reasonable? Madness?

Comments
Your post slipped under the radar somehow.
For what you want to achieve, I'd rather recommend to either practice playing on the keyboard in a similar way as you hit the slices and recording it live or using the "Copy Loop To Track" button, select a range of notes in the piano roll and move them around. Delete the first few notes to have some space to move around.
Gadget will already play the moved range while you're still moving it. Not exactly the same, but one option.
Another option is to set the pattern time signature to 1/16 and its length to 16 bars.
This gives you a 16-bar pattern that plays like a 16-step pattern with the advantage that you can set start and end points live in the piano roll by dragging the start and end markers around. If you duplicate such a pattern multiple times and change the beginning of each, you can simulate playing from the slice start points by triggering the different patterns.
Once you've found the order you like, rearrange the patterns using drag/drop up or down.