What is the keyboard shortcut for duplicating a layer or track in Adobe After Effects?

The keyboard shortcut for duplicating a layer or track in Adobe After Effects is Ctrl/Cmd + D. This command is widely used across various software applications, including graphic design and video editing programs, to quickly create a copy of the selected item.

Using this shortcut streamlines the workflow by allowing users to duplicate layers without navigating through menus, making it easier to repeat design elements, effects, or animations. This efficiency is particularly beneficial within complex compositions where multiple layers need to be created or adjusted.

The other options represent different functions within After Effects: Ctrl/Cmd + C is for copying an item to the clipboard, Ctrl/Cmd + Alt + D may not correlate to a specific widely recognized function, and Shift + D does not serve as a standard shortcut for duplicating. Understanding these shortcuts can significantly enhance productivity and speed when working on a project.