Graph Editors menu > Motion Mixer... > Trackgroups menu > Filter
By default, the Motion Mixer expects that a mix you create will affect the entire non-biped object. If you like, you can filter a trackgroup so clips in the mix affect only selected body parts. This functionality makes it easy for you to assign one set of XAF files to control the motion of an object's upper body, while another set controls the lower body.
For more information and procedures on the use of trackgroup filters, see Filtering Mixer Tracks.
Search field—To find an object in the list, enter the object's name and then press Enter.
Object list—The Trackgroup Filter dialog displays a list of objects, with the hierarchy indicated by indenting (if Subtree > Display is on, which it is by default). Objects can be individually activated or deactivated by clicking them, or you can use the buttons across the bottom of the Trackgroup Filter diagram to expedite selections.
None—Deactivates all body parts.
Invert—Inverts the current body part selection. If everything is active, this deactivates everything, as if you clicked the None button.
Display—When on, all body parts are listed following a hierarchy structure. Otherwise, body parts are listed on the same level. Default=on.
Select—When on, highlighting a body part automatically select all its children.
Named selection sets drop-down list—This list shows the scene's named selection sets. Choosing a set from this list selects its members in the Object list.