Zoom All ↑
There are lots of Zoom commands. It’s fallout from having small screens on our computers that need to display lots of detail. Fills the Smart Tempo Editor window with the entire audio region or MIDI region.
Press the Up Arrow to zoom out so that the entire audio file or MIDI region is visible.
⇧ SHIFT – ⌃ CONTROL – ⌥ OPTION – ⌘ COMMAND