Unfortunately this multi instance script can not be used in bitwig since bitwig automatically uses vst note expression instead of mpe when it detects a vst3 so it does not send multi channel data. And Halion does even have note expression modulators that bitwig uses so that’s useless. Only per voice bend bend works. Halion doesn’t even have polyphonic pressure. So bitwig and Halion is not a great combo for mpe and roli type stuff. Steinberg support has been horrendous as well and they don’t even know what im talking about when asking about modulation sources for the vst3 spec.