Time tags are text labels that you can assign to any point in time in your animation.
They let you easily jump to any point in your animation by selecting its tag name. The tags can be locked to be relative to other time tags so that the movement of one time tag will update the time position of another.
The time tags are not attached to keyframes. They are simply a way to name events that occur in your animation and navigate to them. If you move your keyframes, you will need to update your time tags accordingly.
Click the Time Tag box to display a menu with the following items:
Displays the Add Time Tag dialog that lets you define a tag name for the current location in time.
Displays the Edit Time Tag dialog that lets you rename, delete, or edit any defined tag.
The remainder of the menu displays frame numbers and their tag names. Choose a tag name to jump to the spot in time defined by the tag.