What is the primary interface used for editing in Final Cut Pro?

The primary interface used for editing in Final Cut Pro is the Timeline. The Timeline serves as the central workspace where you can arrange and manipulate your video and audio clips to create a cohesive final product. It displays the sequence of clips in the order they will be played back, allowing editors to visually see how their edits are structured.

In the Timeline, users can trim clips, insert transitions, and adjust audio levels, making it an essential component of the editing process. As the heart of a project, the Timeline provides a detailed view of the duration and layout of media, enabling users to orchestrate elements effectively. While other components like the Viewer, Inspector, and Media Browser play important roles in the overall workflow—such as previewing clips, adjusting settings, and managing media files—they do not function as the main editing interface in the same way that the Timeline does.