MIXER - Part Number & MIDI Channel
Each of Omnisphere’s eight parts is numbered along the far left of the MIXER page.
By default, Parts 1 ~ 8 are assigned sequentially to MIDI Channels 1 ~ 8. However, each Part in a MULTI can be set to respond to any one of 16 MIDI channels. Select the desired channel from the MIDI Channel drop-down menu.
Range 1 to 16