You just want me to make it a more difficult process... lol
Since the instrument comes with Cubase AI, I never sample on the instrument it self. Thats not to say one can't do it ! Especially because I like to use a condenser mic and a different pre amp such as the Steinberg UR824 or the new Yamaha AG06.
If you are dealing with few samples, I suppose managing the samples would be easy on the instrument it self, but remember, I am talking about LARGE number of samples. So trust me, the Waveform editor is the way to go for sure. I only scratched the surface as for the WFE capabilities. I will be doing a more technical video on just the WFE.