Logic Pro X keyboard command of the day. #LogicProX @StudioIntern1

  Show/Hide MIDI Instruments        ⇧5⃣

In the Mixer windows. Toggle the visibility of the MIDI Instrument channel strips. These are the External MIDI Tracks.

MIDI channel strips overview — Logic Pro X

MIDI channel strips in the Mixer work as remote controls for the mixing parameters of your MIDI-controlled sound modules and synthesizers, such as volume and pan.

⇧ SHIFT – ⌃ CONTROL – ⌥ OPTION – ⌘ COMMAND