# Timelines (/docs/writing/timeline)

## The scene's timeline [#the-scenes-timeline]

The timeline is what plays. It sits in the bar at the bottom of a scene's canvas. Open it in full with **Open the timeline**.

- Drag a video onto the timeline to put it in the scene. Right-click a node and choose **Put on the timeline** to do the same.
- Trim a clip's in and out points. An image holds for as long as you set.
- Add overlay and audio tracks above the video, for titles, dialogue, sound and music.
- Press **Space** to play the scene.

A scene with nothing on its timeline shows its heading for about as long as its script takes to read, so you can time a sequence before any video exists.

The voting window of an [interaction](/docs/writing/interactions) is set on the timeline of the last scene before it.

## The master timeline [#the-master-timeline]

The master timeline is one path through the whole story: each sequence as one clip, interactions as markers, with a soundtrack on top. Open it from the board with **Open the master timeline**.

It follows the outcomes you picked, otherwise the first outcome of each interaction. Right-click a sequence to put it on the master timeline or take it off.