Working with Animations > Editing Animations > To Edit Tracks Using the Track Tools
  
To Edit Tracks Using the Track Tools
Use the Track Tools tab to modify one or more tracks of the animation as follows:
Tool
Description
Lock
Locks the track to prevent unintended changes.
Enable
Enables or disables the track.
Delete
Removes the track.
Insert Keyframe
Adds a new key at the location of the time insertion point.
Insert Folder
Create a new track folder.
Collapse All Others
Shows in the Keyframe Editor the selected tracks and hides all other tracks.
Show Path in 3D
Shows a preview of the animation path in the graphics area.
Zoom Selected
Zooms the selected track to fit the visible portion of the Keyframe Editor.
Split
Slices the track at a selected location.
Merge
Splices together two consecutive segments on the same track. The segments do not have to be adjacent.
Mirror
Creates a copy of the track whose keys are reversed relative to the original.
Reverse
Reverses the order of the keys in the track.