Rigid bodies
 
 
 

After all the markers are properly labelled to segments, you can build Rigid bodies. This helps match markers and reconstruct gaps in data. Rigid bodies also extrapolate rotation data.

Before you add a Rigid body:

There are two methods for creating Rigid bodies: one method creates a Rigid body from a selection of markers, the second method lets you select each marker for the Rigid body as you go.