Channel and Output Settings
You can set separate MIDI channels and/or MIDI outputs for each sound in a drum map. When a drum map is selected for a track, the MIDI channel settings in the drum map override the MIDI channel setting for the track.
You can select different channels and/or outputs for different sounds. This allows you to construct drum kits with sounds from several different MIDI devices, etc.
To make a drum sound use the channel of the track, set the channel in the drum map to Any.
To make the sound use the MIDI output that is selected for the track, set the MIDI output for a sound in a drum map to Default.
To send the sound to a specific MIDI output, select any other option.
To select the same MIDI channel or MIDI device for all sounds in a drum map, click in the Channel column, press Ctrl/Cmd, and select a channel or output.
If you make specific MIDI channel and output settings for all sounds in a drum map, you can switch between drum maps to send your drum tracks to another MIDI instrument.