Here's an in depth take from Keyboard Magazine review of Casio MZ-X500 :
Sound editing goes much deeper than I expected in an arranger at this price point: filter cutoff and resonance; amp attack, decay, and release; entry volume, and velocity sensitivity are adjustable per Tone from the first editing screen. Hitting the Advanced icon takes you to even more fine-grained control, including graphical pitch, volume, and filter envelopes. You also get independent and highly programmable LFOs for pitch, filter, and amp (volume). Effects settings are editable per Tone as well, and you can save your creations as User Tones. There’s no “oscillator” editing; any User Tone begins with the multi-sample of some factory Tone. If that makes the MZ-X500 less than a full and true synthesizer, it’s only just barely..........
Now with that in mind, is this saying that - MZ-X500 can further edit user tones which includes tones (.wav samples) loaded from Sample Manager software?