Animation Timeline is where the user can view and edit animation key frames, and it is displayed by default in the Library panel of the Animation workbench.
In the timeline the user can also set the animation duration, by setting the end key frame value.
The current frame is marked on the timeline by a red vertical line. The names of the animated objects appear on the left side of the time line, clicking on the name of any object automatically selects it in the 3D area.
The user can play animation by clicking the Play Animation button in the animation time line, or by hitting the Space Bar. The tool bar also includes the tool buttons Go to First Frame (Shortcut Home) and Go to Last Frame (Shortcut End).
Clicking on an animation key frame on the time line will show its properties, in the Properties Panel. The user can change these properties, for different types of animation.
The user can also change the location of any key frame on the time line, by selecting and dragging it from a location to another.
