Transport Bar
The Transport Bar is always visible in all modes of the user interface and provides temporal indication in both Timeline and 3D Frame view.
Keyframe markers – Shows the position in time of all keyframe of the active type. For example, all Camera keyframes.
Active Keyframe Type – Popup menu use to select the active keyframe. The active keyframe is the one being created or edited.
Timeline Slider – Slider to reset the playback needle to a specific position. Same as dragging the needle directly in the Timeline view.
Go To Beginning – Move playback needle to beginning of the animation.
Play - Pause – Launch playback of animation.
Go To End – Move playback needle to end of the animation.
Loop – Toggle looping -- the automatic return to the beginning upon reaching the end of an animation.