Working with Animations > Creating Animations and Movies > To Preview the Path of an Item
  
To Preview the Path of an Item
1. In the Keyframe Editor, select the item’s track in the track tree, or the timeline. The Track Tools tab appears in the ribbon.
2. Preview the path in either of the following ways:
Click Track Tools > Show Path in 3D.
In the Keyframe Editor, right-click the track in the track tree or timeline and choose Show Path in 3D from the shortcut menu.