DJS 1000 recording channels

Been playing with DJS1000 for almost a year. Plenty of projects backed up. finally got around to sticking into DAW to construct songs (obviously feeling limit of lack of arrangement mode!!!). Noticed when rendering audio, some.annoying artefacts. Set pattern lengths are rendered so If a sample is triggered in pattern, it gets cut off at end of pattern. Kills off any longer samples, transitions, effects etc. Can't really counter act this either by rendering individual samples as FX and other editing not preserved in file on usb necessarily. Also render overwrites each time which hampers quick fire recording of variations on a theme, say if you wanted to quickly record and export different cutup vocal combos or drum rolls. Why can't this thing use the usb to send mutlitrack info to a DAW???? USB only for Midi? It would be an amazing input tool. I thought maybe record midi info of each track live into DAW then play back and retrigger each track seperately and record audio that way but no the midi channels of the DJS are used to trigger outboard stuff, or is there a way to dump the midi info of patterns?. Is there something I'm missing???