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

  Open Piano Roll…    ⌘4

Opens the Piano Roll editing interface in its separate window. To open the Piano Roll editor at the bottom of the arrange window double click on a MIDI region or click on the Scissor button on the left of the arrange window.

⇧ SHIFT – ⌃ CONTROL – ⌥ OPTION – ⌘ COMMAND