Edit Group List
Below the track list is the edit group list, which lists all edit groups
for the session, including a default group called “all”. To
the left of each group name is a checkbox which indicates whether or not
the group is active (a checkmark means its active). Click on the
checkbox to change the active status of an edit group.
The edit group list can also be used to toggle the visibility of all
members of the group. Visible edit groups are displayed in cyan, hidden
ones in orange. Click on the name of the edit group to toggle its
visibility. Note that an edit group can be visible and yet have hidden
member tracks, and vice versa.