The Keyboard icon on the far-right of the navigation bar opens a pop-up box that contains a plethora of keyboard shortcuts that will help with your efficiency as a translator and subtitle editor. These shortcuts apply to different functions available in the tool, ranging from video player and timeline/waveform functions to actions that apply to editing subtitle events from within the editable translation column.

For more info please see this article in Netflix Help Center.

For a quick visual guide, check out this short video!