Human: How to add a motion track in after effects? Assistant: 
Motion Track in Adobe After Effects
1. Add the motion track file to the project.
2. Click the title.
3. Create a Null Object.
4. Add Track Motion from the Animation menu.
5. Position the motion tracker.
6. Press Playin the Tracker window to record.
7. Click Edit Target.
8. Select the Null Object and click OK.
9. Apply changes.
10. Position the file.
11. Connect the file to the Null Object.