The following keyboard shortcuts can help you be more productive when working with animations by providing access to many common functions. These shortcuts work with animation regardless of whether the Animation Timeline pane is open or not.
Ctrl+Right arrow key
Move to the next keyframe .
Ctrl+Left arrow key
Move to the previous keyframe .
Play or pause the steps.
Append a new keyframe to the end of the animation after the last keyframe.
Update or set a keyframe. If a keyframe exists at the current time, it is updated. Otherwise, a new keyframe is inserted at the current time between two keyframes.
Delete the current keyframe.