The Player Controls are located along the top of the Animation tab and contain several animation controls located on the far left.

Select:	To:
	Select a playback mode.
	Move to previous cue mark.
	Set a cue mark.
	Move to next cue mark.
	Move to previous keyframe.
	Set keyframe.
	Move to next keyframe.
	Set keyframes automatically—see Setting Keyframes Automatically.