What key combination is typically used to create a duplicate of a clip in a timeline?

The key combination used to create a duplicate of a clip in a timeline is typically achieved through the action of Alt + Drag on Windows (or Option + Drag on Mac). This method allows users to press and hold the Alt (or Option) key while dragging a clip to a new position in the timeline, resulting in an immediate copy of that clip. This process is highly efficient as it enables quick duplication directly within the timeline without needing to engage with the clipboard, which is often used for copy and paste actions.

The other methods, while functional in their own respects—such as copying and pasting with Ctrl + C and Ctrl + V or using the shortcut for adding a default transition—do not provide the same instantaneous duplication effect when working directly on the timeline. The Alt + Drag technique is particularly favored for its speed and ease, making it a common practice among editors for creating copies of media elements while maintaining a seamless workflow.