As edits grow, it helps to build chunks of work - a montage, a titles block, a finished scene - as their own sequences, then bring them into a master sequence. In Lightworks you do this by using one sequence as a source for another. It's a simple, robust way to work, as long as you understand exactly what it does.
Using a sequence as a source
Any sequence can be loaded into the source viewer, marked, and edited into another sequence - exactly like a clip. When you do, the marked section's edits are copied into the target timeline: every clip, cut, and transition from the source section arrives as ordinary, individually editable material.
This is useful when you want to:
- Build in sections - cut each scene as its own sequence, then assemble the master from those sections.
- Reuse a built block - a recurring title block, a logo sting, or a montage - in several places or several programmes.
- Keep a safe master copy - the source sequence is untouched by anything you do to the copy in the target.
What this is - and isn't
Be clear about the model: this is a copy, not a link. Some editors offer compound clips or nested sequences - a container segment that can be collapsed, expanded, and updated from its source. Lightworks doesn't do that:
- The copied section has no connection to the sequence it came from. Editing the source sequence later does not update the copies, and editing a copy doesn't touch the source.
- The material lands as its individual clips, not as a single container segment - there's nothing to expand or step into, and no single segment to trim or grade as a whole.
Think of it as a precise, timeline-aware copy and paste between sequences. That predictability is a feature - nothing updates behind your back - but it means reused blocks must be re-copied if the original changes.
Subclips and sync clips
Sequence-as-source copying sits alongside the ways Lightworks genuinely does package material as one item:
- Subclips reference a section of a single clip (see Logging and subclips).
- Sync clips lock picture and sound, or several angles, together and play as one (see Syncing picture and sound).
Use a subclip when you're carving up a single clip, a sync clip when sources must stay locked together, and a sequence copy when you're reusing a whole built section.
Getting compound-style results
If what you're really after is one of the things compound clips are used for elsewhere, there's a direct route in Lightworks:
- One look across many clips - apply the effect to all the clips at once: select the segments (or mark the section) and add the effect to the selection, rather than clip by clip.
- A finished scene as a single clip - export the sequence (or the marked section) and re-import the rendered file. You get one clean, fast-playing clip; keep the original sequence in a bin in case the scene needs to change.
- Versions of a block - duplicate the sequence and vary the copy. Sequences are cheap; make as many variants as you need and keep them filed in bins.
Working in sections: a reliable pattern
- Build and polish each section as its own sequence, named clearly (
Scene 04 - locked,Titles block v2). - Copy sections into the master when they're settled. The master stays a clean assembly.
- If a section changes, delete its copy in the master and copy the revised section in again - remember, copies don't update automatically.
- Keep everything flat while you're actively cutting - copies are fully editable in place, so you can always tweak in the master when a change is small.
Tip: Treat section sequences like finished components, and treat the master as an assembly. When a component changes, replace its copy in the master - don't let the two drift apart silently.