Timeline & Editing

The timeline sits below the preview player and is where your edit takes shape: clips laid out across tracks, cut and trimmed against the playhead, with keyframe rows for animation.

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Tracks and clips

Each row on the timeline is a track, labeled by what it holds — V1 for video, A1 for audio, T1 for text and other overlays. Hover a track’s sidebar to reveal Add track above and Add track below buttons, drag the handle to reorder tracks, or use the trash button to delete one. Dropping an asset below the last row creates a new track automatically. Clips show a preview inside the bar — a frame strip on video clips, a waveform on audio clips, and a thumbnail strip on images — so you can line up cuts against the actual content.

• Move a clip by dragging it along its track; drag vertically to move it to another track. A ghost outline shows where it will land before you drop.
• Select multiple clips with ⌘/Ctrl + click, then drag to slide the whole group in time.
• Right-click a clip for quick actions: Split at playhead, Duplicate, Lock, Show/Hide, Mute/Unmute, and Delete clip.

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Trim, split, and snap

Drag either edge of a clip to trim it — the cursor changes at the edge, and the preview follows the moving edge so you can see the exact frame you’re cutting to. To split a clip in two, park the playhead inside it and press ⌘ K, or use the scissors button in the transport bar. Snapping is always on: as you move or trim, edges snap to other clips’ edges within a few pixels, and a dashed guide line marks the alignment.

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Keyframes

When a clip has animated properties, a chevron appears in its track sidebar — click Expand keyframes to open a sub-row per property (position, scale, rotation, opacity, volume, and more). Each row shows keyframes as diamonds; click a diamond to jump the playhead to it, and drag it horizontally to retime it. Expand a property row again to open the keyframe graph, where you shape the motion itself:

• Select a diamond to reveal its curve handles, then drag them to sculpt a custom bezier ease.
• Right-click the segment between two keyframes to pick an easing preset: Linear, Ease In, Ease Out, Smooth, Hold, or Custom curve.
• Right-click a diamond to Delete keyframe.

You add keyframes from the inspector: click the diamond next to a property to set its value at the current frame.

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Playback and transport

The transport bar under the player covers playback, editing shortcuts, a Scene switcher, playback speed (0.5×–4×), a loop region, fullscreen, and timeline zoom (25%–200%). The header shows the current timecode and your project’s frame rate.

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Scenes

Every Composition node on your canvas is a scene with its own timeline. Switch between them with the Scene dropdown at the left of the transport bar — useful for building a longer piece as separate cuts, or keeping alternate versions side by side. Export renders one scene at a time.