System information

2. Right-click one of the tracks, choose Track Group, and then choose Group Selected Tracks.
The tracks are grouped together. Click the Collapse/Expand Track Group button in the track group
header to close and expand the tracks in the group.
When a track group is collapsed, dark gray bars indicate the length and location of events in the
collapsed tracks.
If you select a parent or child video track to be added to a track group, all associated parent/child
tracks will also be added to the group to preserve the compositing relationship. For more information,
see "Compositing and Masks" on page 385.
When you collapse a track group, tracks and events in the group are not locked. Edits made elsewhere
in the project may affect tracks and events in the collapsed group.
Adding tracks to existing track groups
Drag one or more tracks into a track group to add the selected tracks to the group.
Removing tracks from groups
Drag one or more tracks out of a track group to remove the selected tracks from the group. You can also
right-click one or more selected tracks in a group, choose Track Group, and then choose Ungroup Selected
Tracks to remove tracks from a group.
Clearing track groups
1. Click the track group header to select all tracks in the group.
2. Right-click the track group header and choose Ungroup Selected Tracks to ungroup all tracks in the
group.
You can also right-click the track grouping lane and choose Ungroup Selected Tracks from
the shortcut menu to clear the track group.
230CHAPTER 10