> For the complete documentation index, see [llms.txt](https://doc.playturbo.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.playturbo.com/video-tools-video-editor/video-editor-user-guide/creative-making-editing-page-module-intro/track.md).

# Track

Track Layout：Track operation bar、Track timeline、Asset track.

<div align="left"><figure><img src="/files/o3sA2NaDZxDNeK96ZNNk" alt=""><figcaption></figcaption></figure></div>

## 1.Track operation bar

The track operation bar contains the following operations: undo, redo, copy, paste, split, delete, set as asset group, fold/expand track,scale track.

* Undo：Undo the last edit option
* Redo：Redo the last undone edit
* Copy and paste：Copy and paste assets in the track area
* Split：Divide the selected clip into two clips；The splitting point follows your current time cursor；Click the button to split

<div align="left"><figure><img src="/files/L6hNQLj7nuErfhWYqas8" alt=""><figcaption></figcaption></figure></div>

* Delete：Delete assets in the track
* Set as asset group：Select the asset in the track and click the button to set as asset group; Clicking the right mouse button can also set as asset group.

<div align="left"><figure><img src="/files/FzhmAgjPST1UVzj8Ntf0" alt=""><figcaption></figcaption></figure></div>

* Fold/expand track：Fold/expand track audio asset within the track.

<div align="left"><figure><img src="/files/UVSLJgxOohsixgFYEn4o" alt="" width="563"><figcaption><p>Expand</p></figcaption></figure></div>

<div align="left"><figure><img src="/files/5EXLS3p6Cfr99pJedHVs" alt=""><figcaption><p>Fold</p></figcaption></figure></div>

* Scale track：Click on the"- ""+ "sign to scale the track ratio, or you can directly slide to adjust it.

<div align="left"><figure><img src="/files/XqMPjLOfLPBSPb9Jr46a" alt=""><figcaption></figcaption></figure></div>

## 2.Track timeline

* Display the time point of the track
* Time progress bar can be zoomed in and out.

## 3.Asset track

* Different types of Assets are on different tracks
* There are the following types of tracks: Video, Image, Audio, Filter
* The maximum number of tracks of each type is 10
* Multiple assets of the same type can be accommodated in a single track

<div align="left"><figure><img src="/files/QIX2ZDtgV4LH4ygG8HVP" alt=""><figcaption></figcaption></figure></div>

### 1)Extend & shorten the material duration

* The duration of the asset in the track can be extended & shortened
* Move the mouse to the edge of the asset, click and drag the edge to extend & shorten the asset

### 2)Move asset position

* The asset position in the movable track includes movement on the vertical track and movement on the horizontal time axis
* Click the asset with the mouse and drag to move the position of the asset
* If the asset is dragged out of the track area of this type, a new track will be generated

### 3)Multiple Selection

* Assets can be selected by dragging a selection box or clicking with Ctrl/Shift to select multiple assets at the same time.
* Selected asstes can be dragged within the track, changing the timeline position as a group.

### 4)Separate audio

* Applies only to video assets
* Right-click to separate the audio, the audio of the video itself will be separated and become an independent audio asset

<div align="left"><figure><img src="/files/4xKfBcn7lsn4HvyjdCtd" alt="" width="439"><figcaption><p>before</p></figcaption></figure></div>

<div align="left"><figure><img src="/files/FIO3ALj7agYz76gOR0BV" alt="" width="506"><figcaption><p>after</p></figcaption></figure></div>

* You can right click again to restore the audio

<div align="left"><figure><img src="/files/vAYt5ykwY8Q0ogtSWhrD" alt="" width="437"><figcaption></figcaption></figure></div>

### 5)Replace assets

* By right-clicking, you can replace assets by uploading resources from your local device or asset library to replace existing ones.

<div align="left"><figure><img src="/files/bc9IjWPzp7vHXAWzBzUF" alt=""><figcaption></figcaption></figure></div>

### 6）Mute

* Applies to video and audio tracks only
* Click the mute button to mute all material on that track
* Can be tapped again to unmute

<div align="left"><figure><img src="/files/ZibZNpWURpkEqDIbDpN7" alt="" width="528"><figcaption></figcaption></figure></div>

### 7)Time Sequence Swap

* Resource groups on the main track support setting Time Sequence Swap.
* During export, clips participated in swaps will be randomly recombined to increase the number of video variations.

<figure><img src="/files/0pgFlDeeXqCdKQL0J6gT" alt=""><figcaption></figcaption></figure>

（For more information about Track Settings, please refer to[ Create Asset Group](/video-tools-video-editor/video-editor-user-guide/standout-features/batch-production-function-swap/function-step-by-step-intro/add-asset-group-to-the-track.md) Create Asset Groupfor reference.）