DocsEditor
Timeline editing
Trimming, replacing clips, editing narration, music, and sound effects.
This page covers the day-to-day edits: fixing a clip, rewording narration, adjusting audio.
Working with video clips
Select any clip Show me in the app ↗ to open its editor:
- Trim the source Show me in the app ↗ — set In/Out points with ±1 s and ±0.1 s nudge buttons; a "Using X of Y" readout shows how much of the source you're using.
- Find Different Clip Show me in the app ↗ — search YouTube, paste a specific URL, or pick from the backup clips VidNext found during generation. The new clip replaces the current one in place.
- Upload your own Show me in the app ↗ — drop in your own footage for that scene.
- Original audio Show me in the app ↗ — toggle the clip's own sound on or off.
From the media browser you can also add entirely new clips — stock video via Pexels search Show me in the app ↗, or YouTube clips by search or URL (downloaded clips are capped at 60 seconds each). Drag to the timeline or double-click to add. An Empty Clip placeholder Show me in the app ↗ lets you lay out timing first and attach footage later.
Editing narration
Narration segments are editable text, not baked audio:
- Select a narration element Show me in the app ↗.
- Edit the script text Show me in the app ↗ (a character count and estimated reading time update live).
- Optionally pick a different voice Show me in the app ↗ for this segment.
- Regenerate Narration Show me in the app ↗ — new audio is created with the selected voice.
You can also trim narration on its waveform. Regenerating resets trim points, and because scene timing follows narration, expect to re-render after significant script changes.
Music and sound effects
- Music — adjust volume Show me in the app ↗ or reset to the project default. Music is automatically ducked under narration and chapter markers.
- SFX — every sound effect placed during generation (transition whooshes, template entry sounds) is a visible, labeled element on the SFX track. What you see is exactly what exports: drag to retime, adjust volume Show me in the app ↗, or delete to remove the sound. The SFX settings Show me in the app ↗ (on the create page) control whoosh density and template entry sounds.
New narration segments and music tracks can be added from the Audio tab Show me in the app ↗:
Images
Image scenes carry their search query, match score, duration (2–15 s), and animation (zoom in/out, pans, static). You can re-run the search with a new query Show me in the app ↗, regenerate an AI image, switch the animation, or pick a different design template. The Images tab in the media browser has four sources Show me in the app ↗ — Stock, Web, Generate, and Upload:
Splitting elements: press S to split at the playhead — works on clips and audio alike. Deleting a middle piece prompts whether to keep the gap Show me in the app ↗ or close it and pull everything left.
Timeline panel height
The bottom panel is resizable. Drag the thin divider just above the playback controls: up to see more tracks at once, down to shrink the timeline to as few as two tracks and give the preview more room. Double-click the divider to return to the default (six tracks), or focus it and use ↑/↓ to step one track at a time. The height you choose is remembered on that device.