Hi!
I noticed that Morphader is marked is polyphonic, and indeed it accepts and output polyphonic cables, but the fader CV inputs are not polyphonic. So, there's no way to control the crossfade per voice. I know that polyphony is something that is unique to VCV and the hardware module is of course not polyphonic, but I wanted to mention this anyway. The whole fun of polyphony is controlling things per voice.
Cheers!