Tracks : Track Channel Strips in the Mix Window : Instrument Track Channel Strips
 
Instrument Track Channel Strips
Each Instrument track has its own set of channel strip controls, including audio (like an Auxiliary Input track) volume, pan, automation mode, solo, and mute, and MIDI (like a MIDI track) record enable. Instrument tracks have an additional Instruments view that provides controls for MIDI input, output, mute, volume, and pan (like on a MIDI track).
Stereo Instrument track channel strip, Instruments view shown