Compound Clips in DaVinci Resolve: Create, Edit and Undo

A compound clip wraps selected timeline items into one editable object. Use it when a title, background, picture-in-picture and audio cue need to move, trim, transform or receive one parent effect together. Resolve does not render new media or erase the layers inside. Open the compound and the original construction is still there.

The catch is identity. Copying and pasting a compound on the timeline creates another instance of the same Media Pool item, so an edit inside can update every use. Make an independent Media Pool duplicate before changing only one version. This guide follows the current DaVinci Resolve 21 Reference Manual for creation, Open in Timeline, the path control, Decompose in Place and parent-versus-internal processing.

Choose a compound clip only when you need a container

Create a compound clip from a timeline selection

1. Duplicate the timeline first when the structural change would be expensive to rebuild.
2. Select only the video, title, image and audio items that must behave as one object.
3. Right-click one selected item and choose New Compound Clip.
4. Give it a purpose-specific name and optional starting timecode instead of leaving Compound Clip 1.
5. Confirm that the new compound replaced the selection in the parent timeline and appeared in the currently selected Media Pool bin.
6. Play across its head, tail, audio, transitions, and any effects.

The compound spans the time covered by the selected items. Internal gaps and track relationships become part of that nested result. Resolve also supports Convert In and Out to Compound Clip, but that marked-range method can include every track in the range, even when a track is disabled or Auto Select is off. Inspect the selection before creating it.

Open and edit the clips inside

Right-click the compound in the timeline and choose Open in Timeline. Resolve exposes the nested clips as an editable timeline. You can trim, move, replace, add or remove items inside while the enclosing timeline continues to see one compound result.

Use the path control at the bottom-left of the timeline to return: double-click the enclosing timeline name. If the tracks suddenly look much simpler than the program, read that path before making a broad edit. You may still be inside the compound.

Changes inside update every timeline instance that points to that same Media Pool compound. That is useful for a repeated graphic package whose approved change should propagate. It is dangerous when two copies were expected to become different versions.

Make an independent copy before changing one version

Timeline copy and paste creates another reference, not a new independent compound. Rename the displayed timeline instance if you like, but a display name alone doesn't change the underlying Media Pool identity.

1. Find the compound item in the Media Pool, not merely its timeline instance.
2. Right-click and choose Duplicate Clip, then give the duplicate a clear versioned name.
3. Replace the timeline instance that must diverge with the new Media Pool duplicate.
4. Open that duplicate in its timeline and make the version-specific change.
5. Reopen the original instance and verify that its contents didn't change.

If Duplicate Clip is unavailable in the layout or the result is ambiguous, decompose the copied timeline instance and create a new compound from the restored clips. Either route must produce a separate Media Pool item. The full Resolve duplication guide covers ordinary source and timeline copies without collapsing these object types together.

Extend a compound clip by adding duration inside

In the parent timeline, a compound behaves like a source clip whose available head and tail are defined by the nested duration. You can't trim an edge outward when there's no more internal time to reveal. To add duration:

1. Open the compound in its timeline.
2. Extend the required video, title, generator, still or audio layers, or add new material.
3. Add intentional empty duration only when transparency or silence is the intended result.
4. Return through the bottom-left path control.
5. Trim the parent instance outward and inspect every internal layer at the new edge.

Slowing the whole compound makes it longer by retiming the combined result. It also retimes internal motion, transitions, keyframes and audio, so it isn't equivalent to extending a title hold or adding clean source duration.

Undo a compound with Decompose in Place

If the compound was just created, normal Undo is the cleanest reversal. Later, duplicate the parent timeline, right-click the compound instance and choose Decompose in Place. Resolve replaces that instance with its internal clips at the same location.

Read the submenu rather than guessing. Resolve documents Using Clips Only and, in relevant audio workflows, Preserve Audio Data. These choices concern how clips and audio are restored; they don't promise to transfer a grade or effect applied to the parent compound onto every child. Compare the duplicate before and after decomposition.

Decomposing one timeline instance doesn't delete the compound from the Media Pool and doesn't alter its other uses. It only replaces the selected instance with the underlying edit elements.

Check grades before and after decomposition

A compound can carry a grade or effect as one parent clip, while the internal source clips can have their own grades and effects. Those are separate processing levels. Before decomposition, identify whether the approved look lives on the parent compound, inside individual clips, in a group or at timeline level.

Don't assume Decompose in Place will bake a parent grade into the restored clips. Capture a reference still or short render, decompose only a duplicate timeline, and compare scopes as well as the viewer. Rebuild or copy the parent operation deliberately when the decomposed version must match.

Create handles before adding parent transitions

A parent transition needs usable compound frames beyond the visible edit, just as an ordinary clip needs handles. If the compound begins or ends on the first or last internal frame, a centered transition has no extra nested material to reveal on that side.

Open the compound, extend the required internal layers, then return and trim the parent instance so those extra frames remain hidden as handles. Inspect titles, generators, masks and audio at both edges. The transition guide explains the handle math and the insufficient-handles warning.

Test delivery with the compound intact and decomposed

Before export or handoff, render a short range containing the compound's first frame, last frame, strongest motion, transparency and any parent effect. If the next department requires source clips, compare that reference with a decomposed duplicate. This catches changes in scaling, alpha, retiming, color order and audio routing.

Keep the approved reference movie beside the project transfer. XML or AAF interchange may not reproduce a Resolve compound as the receiving application expects. Preserve the editable compound timeline, then decompose and verify a separate handoff version only when the recipient needs source-level access.

Control how source timelines and compounds edit into a timeline

Edit > Decompose Compound Clips on Edit is a source-editing mode. When enabled, a compound or timeline loaded from the Media Pool or Source Viewer edits into the destination as underlying clips instead of one nested object. Resolve documents exceptions for Fit to Fill and Place on Top. This mode is not the same command as decomposing an instance already in the timeline.

The mode is useful for selects timelines: enable it when chosen source clips should land individually in the program; disable it when the source timeline must remain a single nested object. Test the exact edit command and track destinations before using it across a long assembly.

Understand processing order before adding effects

An effect, transform or grade applied to the compound in the parent processes the combined result. Operations inside the compound process individual layers before that parent result. Moving an operation across this boundary can change scaling, masks, motion blur, alpha and which layers the effect sees.

That's useful when one transform must move an entire picture-in-picture construction. It's less transparent when retiming or Optical Flow crosses several internal edits. Inspect the compound's head, tail and every internal cut for repeated or synthesized frames.

If the goal is one look over visible clips while keeping them exposed in the parent timeline, compare the adjustment-clip workflow. If playback is the problem, use proxies, optimized media, render cache or Render in Place through the slow-playback checklist instead of nesting for speed.

Keep audio routing understandable

A compound can contain several audio clips and tracks while presenting a simpler object in the parent. Before nesting dialogue, multichannel production audio or a premix, decide whether the mixer needs individual clips and automation at the parent level.

Check channel mapping, fades, clip gain, Fairlight effects and sync after creation and again after decomposition. Preserve a pre-compound timeline. For a complex deliverable, follow the Fairlight routing map before nesting hides the tracks the mixer must audit.

Avoid compounds that hide the real workflow

• Don't compound every finished scene only to make the timeline look tidy.
• Don't substitute a compound for linked selection, groups, bins or track organization.
• Don't expect nesting to reduce decode or effect processing like rendered media.
• Don't retime a complex compound without checking every internal transition, title, generator and audio cue.
• Don't send nested structures to another editor or colorist without confirming the turnover requirement.
• Don't rename compounds generically when several versions share a project.

Use a naming and version rule

Name the Media Pool item by purpose and version, such as Lower Third - Guest - v03 or Phone Screen Composite - v02. Keep shared instances when one edit should update every use. Duplicate the Media Pool item and increment the version before changing only one use.

For handoff, preserve one timeline with the compounds intact and create a separate reviewed decomposition only when requested. Add a reference movie with burn-in so the receiving editor can detect a nesting, scaling, timing, grade or audio change.

Frequently Asked Questions

What is a compound clip in DaVinci Resolve?

It's an editable nested container that represents selected timeline items as one clip in a parent timeline. Resolve doesn't render or merge the source files when the compound is created, and the internal clips remain editable through Open in Timeline.

How do I undo a compound clip?

Use normal Undo immediately after creation. Later, duplicate the timeline, right-click the compound instance and choose Decompose in Place. Compare the restored clips, audio routing, transitions and any grade or effect that had been applied to the parent compound.

Why do both copied compound clips change together?

Copying and pasting on the timeline creates another instance of the same Media Pool compound. Duplicate the compound in the Media Pool, rename it and replace the timeline instance that must become independent before editing its internal timeline.

Why can’t I extend a compound clip?

The internal timeline has no more duration available at that edge. Open the compound in its timeline, extend or add the required internal material, return to the parent and trim the compound outward. Leave extra internal frames hidden when a parent transition needs handles.

Does a compound clip improve playback?

Not by itself. It remains an editable nested construction and Resolve still processes its media and effects. Use proxy media, optimized media, render cache or Render in Place when playback performance is the actual problem.

Related guides

Use the Resolve tutorial hub for the wider edit path. Compare the adjustment-clip workflow before nesting only to apply an effect, and use the Fusion beginner guide when the layers need node-based compositing.

Jason Miller I run DaVinci Resolve Club as an independent publication: hands-on edits, color grading breakdowns, Fairlight sessions, Fusion tests, and honest notes on where Resolve gets in the way.