So, it doesn’t have a Korg Wavestation built in? :-)
Check out something like Korg iWAVESTATION or u-he Zebralette for something like wavetable (soft) synths, vs merely 1 or 2 layers of PCM samples possibly with an envelope generator to fade between layers.
They really mean sample-based:
https://en.wikipedia.org/wiki/Wavetable_synthesis#Confusion_...