In order to visualize the tracks across the sequence of frames, you can refer to the track timeline at the bottom of the screen.
As you reach an empty project, you should see an empty timeline.
Collapsed view
By default, it is collapsed. You can expand it by clicking on the Details button.
Expanded view
Create a new track
Once you have a label added, the new track will be displayed in the timeline as a colored bar.
Timeline including a first track
A keyframe is automatically added on top of the colored track bar at the frame where the state of the object is defined by the user. More details about keyframes here.
Display tracks
Track bars show when objects are present, using colors that match the object in the scene.
Tracks list
The tracks are now listed individually on the left part of the timeline and are vertically scrollable.
A track is selectable by clicking on its category.
The track list is synced with the one on the right side bar.
Manage tracks
Multiple interactions are available on track timeline tracks. You can select, move, delete, copy, and paste keyframes. More details about keyframes here.
Movement is constrained to the segment where the object exists, so data integrity stays intact.
Contextual Menu
To access deeper features, you can right click on a track frame in order to: