The Timeline Editor lets you combine, arrange, and export your AI-generated content into professional videos.

What is the Timeline Editor?

The Timeline Editor is a professional-grade video editing tool built into Lucky 7. Use it to:

• Combine multiple clips into one video
• Add transitions between scenes
• Arrange content on multiple tracks
• Trim and adjust timing
• Export finished videos

Getting Started

Creating a Composition

Opening an Existing Composition

1. Go to Apps → Editor
2. Click on a composition thumbnail
3. Editor opens with your saved timeline

Editor Interface

Timeline View

The main editing area showing:

• Playhead - Current position indicator (red line)
• Tracks - Horizontal lanes for different content
• Clips - Individual pieces of content
• Ruler - Time markers at the top

Video Preview

Top-right panel showing:

• Current frame at playhead position
• Playback controls (play, pause, skip)
• Zoom controls
• Fullscreen toggle

Media Library

Left panel containing:

• Your generated images
• Your generated videos
• Your generated audio
• Uploaded assets

Timeline Controls

Bottom toolbar with:

• Play/pause
• Skip forward/backward
• Zoom in/out
• Fit to window
• Export button

Working with Tracks

Track Types

Video Tracks

• Hold video clips and images
• Support transitions
• Can be layered (top tracks overlay bottom)

Audio Tracks

• Hold audio clips and voiceovers
• Mix multiple audio sources
• Volume control per clip

Adding Tracks

1. Click + Add Track button
2. Choose Video Track or Audio Track
3. New track appears in timeline

Removing Tracks

1. Right-click the track
2. Select Delete Track
3. Confirm deletion

Note: Deleting a track removes all clips on it.

Reordering Tracks

Drag track labels up or down to reorder. Top tracks appear in front in the video.

Adding Content to Timeline

From Media Library

1. Open Media Library panel
2. Find your content (image, video, or audio)
3. Drag it onto a track
4. Drop at desired position

From Canvas Boards

1. Generate content in Canvas
2. Content auto-saves to library
3. Access from Media Library in Editor

Uploading External Files

1. Click Upload in Media Library
2. Select files from your computer
3. Files appear in library
4. Drag to timeline

Supported formats:

• Video: MP4, MOV, WebM
• Audio: MP3, WAV, OGG
• Images: JPG, PNG, WebP

Editing Clips

Selecting Clips

Click a clip to select it (blue outline appears)

Moving Clips

Drag clips left/right along the track to change timing

Trimming Clips

1. Select clip
2. Drag the left or right edge
3. Clip duration shortens

Splitting Clips

1. Position playhead where you want to split
2. Select clip
3. Press S or right-click → Split
4. Clip divides into two clips

Deleting Clips

1. Select clip
2. Press Delete or Backspace
3. Clip removes from timeline

Duplicating Clips

1. Select clip
2. Press Ctrl+D (or Cmd+D on Mac)
3. Duplicate appears after original

Transitions

Adding Transitions

1. Overlap two clips slightly
2. Right-click the overlap region
3. Select Add Transition
4. Choose transition type:
   • Fade - Smooth blend
   • Dissolve - Gradual blend
   • - Directional reveal

Adjusting Transition Duration

1. Select transition region
2. Drag edges to lengthen or shorten
3. Longer transitions = smoother/slower effect

Removing Transitions

1. Right-click transition region
2. Select Remove Transition

Playback Controls

Playing Your Timeline

Spacebar - Play/Pause

J - Play backward

K - Pause

L - Play forward

Scrubbing

Drag the playhead (red line) to quickly preview different sections.

Looping

Enable loop mode to continuously play a section:

1. Set in/out points
2. Click Loop button
3. Playback repeats the section

Timeline Navigation

Zooming

Zoom In: Ctrl/Cmd + Plus (+)

Zoom Out: Ctrl/Cmd + Minus (-)

Fit to Window: Ctrl/Cmd + 0

Snapping

Enable snapping to automatically align clips:

• Clips snap to playhead
• Clips snap to other clips
• Clips snap to time markers

Toggle with S key

Audio Editing

Volume Control

1. Select audio clip
2. Adjust volume slider
3. Preview changes

Fading Audio

Fade In:

1. Select clip
2. Drag fade handle at clip start
3. Audio fades in over duration

Fade Out:

1. Select clip
2. Drag fade handle at clip end
3. Audio fades out over duration

Muting Tracks

Click the speaker icon on track to mute/unmute entire track.

Exporting Your Video

Export Settings

1. Click Export button

2. Choose export settings:

Export Process

• Progress bar shows rendering status
• Can continue working in other apps
• Notification when export completes
• Download link provided

Export Quality Guide

Low (Fast):

• Quick exports
• Smaller file size
• Good for previews/drafts

Medium (Balanced):

• Good quality
• Reasonable file size
• Good for most uses

High (Quality):

• Excellent quality
• Larger file size
• Professional delivery

Ultra (Maximum):

• Best possible quality
• Very large file size
• Final deliverables, cinema

Keyboard Shortcuts

Playback

• Spacebar - Play/Pause
• J - Play backward
• K - Stop
• L - Play forward
• Home - Go to start
• End - Go to end

Editing

• S - Split clip at playhead
• Delete - Delete selected clip
• Ctrl/Cmd + D - Duplicate clip
• Ctrl/Cmd + Z - Undo
• Ctrl/Cmd + Shift + Z - Redo

Navigation

• Ctrl/Cmd + Plus - Zoom in
• Ctrl/Cmd + Minus - Zoom out
• Ctrl/Cmd + 0 - Fit to window

Full keyboard shortcuts →

Best Practices

Organization

Name compositions clearly: Use descriptive names like "Product Demo V2" not "Composition 1"

Use tracks logically:

• Track 1: Main footage
• Track 2: Overlays/graphics
• Track 3: Effects
• Audio tracks below video tracks

Color code clips: Use clip colors to identify content types (interviews, b-roll, graphics)

Performance

Close unused compositions: Working on one composition at a time improves performance

Optimize clip length: Trim unused portions of clips to reduce processing load

Export regularly: Export drafts periodically to test output quality

Workflow

Plan before editing: Sketch your video structure before adding clips

Use markers: Add markers for important moments or edit points

Save versions: Duplicate compositions for different versions (Director's Cut, etc.)

Troubleshooting

Playback is choppy

• Reduce preview quality
• Close other applications
• Zoom out on timeline
• Export to see final smooth result

Clips won't snap together

• Enable snapping (S key)
• Zoom in for finer control
• Use grid markers as guides

Audio out of sync

• Check clip hasn't been split incorrectly
• Verify FPS matches original content
• Re-import audio if needed

Export takes too long

• Reduce export quality
• Shorten composition duration
• Close background applications
• Check internet connection (for cloud exports)

Can't find my content

• Check Media Library filters
• Verify content was saved
• Refresh Media Library
• Check in original app (Photos, Videos, etc.)

Next Steps

• Creating your first composition
• Advanced timeline techniques
• Adding media to your timeline
• Exporting professional videos