How specifically does the new motion tracking filter work?

[barryleelandis]

Is there any documentation? I clicked analyze and the green box tracked the object, but how do I attach that box to an object or track? I also tried tracking an object in a lower track from a higher track, thinking the upper track would now follow the tracking box, but no such luck. Will someone explain in “five year old” language?

[MusicalBox]

After Analyse is done, you can import the motion tracking data in other filters.
The filters that work with the Motion Tracker filter have this button in the parameters tab:

Here’s an example. I used the Motion Tracker filter to track the orange circle, then I use the tracking data on a Text: Simple filter on another track in the timeline.