I realize the "omni" word is not very accurate for this purpose and can be misleading. I'll rename it later.

Indeed...sorry for looking stubborn/picky but I still fail to grasp the logic...
In Midi, especially on vintage synths, Omni mode was an option (for *mono-timbral synths only*!!!) to have the synth responding to *any* midi channel.
As such, Omni mode makes no sense for multitimbral synths like the d110, where every part must respond to the midi channel it gets assigned by the user, and only to that. Therefore, whatever "Omni" means in the original d110 emulator, it is either wrong or very misleading...

Anyway yes, if I enable it, every part now responds to the intended channel...

Btw, I must apolgize in advance but I am not confident at all with github, so I don't know what it means that a bug or feat. req. was fixed/added by [hex number]. The only thing I see is that they were NOT fixed/added in the latest Release I just downloaded....