Use Track groups to organize tracks when you are working with many tracks. For example, a Timeline AssetRefers to the tracks, clips, and recorded animation that comprise a cinematic, cut-scene, game-play sequence, or other effect created with the Timeline Editor window. A Timeline Asset does not include bindings to the GameObjects animated by the Timeline Asset. The bindings to scene GameObjects are stored in the Timeline instance. The Timeline Asset is Project-based. More info
See in Glossary contains an Animation track and an Audio track that interacts with the same GameObjectThe fundamental object in Unity scenes, which can represent characters, props, scenery, cameras, waypoints, and more. A GameObject’s functionality is defined by the Components attached to it. More info
See in Glossary. To organize these tracks, move them into their own Track group.
To add a Track group, click the Add button and select Track Group from the Add menu. You can also right-click an empty area of the Track listThe area in the Timeline Editor window where you add, group, and modify tracks. More info
See in Glossary and select Track Group from the context menu. A new Track group appears at the bottom of the Track list.
To rename a Track group, click its name and an I-beam cursor appears. Type the new name for the Track group and press Return.
To move tracks into a Track group, select one or more tracks and drag over the Track group. The Track group is highlighted. When dragging a selection of tracks, the last selected track type displays beside the cursor. To drop the tracks before a specific track in the Track group, drag until a white insert line indicates the destination.
A Track group can also have any number of Track sub-groups. To add a Track sub-group, either select a Track group and click the Add button in the Track list, or click the Plus icon beside the Track group name, and select Track Sub-Group. You can also use this menu to add tracks directly to a Track group or a Track sub-group.