from the manual:
Each channel can have various parameters edited all in real time; bit depth, rate, lo fi playback speed/pitch, amplitude level with a simple envelope, looping with crossfade, playback direction, start, end and loop ‘cue’ positions, multiple cue groups and more.
so then, i read “lo fi playback speed/pitch” as trad transposition-based speed & pitch change. “maybe” a “time stretch”-ish thing could be accomplished by moving the “start” position around while hitting a channel with audio rate to trigger playback fast enough? total speculation.