Select your footage in the timeline and then go to the Animate Menu at the top of After Effects. Look for Track in Mocha:
That is the only way you can open Mocha AE. Be aware that Mocha will not accept all types of footage so if you get an error in Mocha you will have to transcode your original footage to a standard production format like QuickTime Jpeg before you can track the footage.
That I know . Thank you.
I have installed the AFTER EFECTS but you are prompted for the serial number of mocha for AE. That I serial number is not anywhere to .