[Elbire Rico] ” I know how to track multiple points but not how to link them on an object”
It’s strange that you are able to track BUT not link your tracking data/points to an object. Tracking invariably involves tracking an object – ie the tracking data is representative of the motion or orientation of the object that you track.
Anyway … there is a very good Webinar later today –
https://www.imagineersystems.com/company/events/live-training-webinar-3d-camera-solving-in-mocha-v3
A lot of the tracking, in the example video you posted, involves 3D tracking. This Webinar will cover topics and techniques that should help to demystify 3D tracking with mochaPro.
HTH
RoRK
Intensive mocha & AE Training in Singapore and Other Dangerous Locations
Imagineer Systems (mocha) Certified Instructor
& Adobe After Effects CS6 ACE