Click a group handle, then choose Staff > Edit Group
Attributes. You may also double-click a group
handle or choose Staff > Edit Group Attributes without selecting
a group. The Group Attributes dialog box appears. To display the attributes
of another group, click the arrow controls to select another Group ID
number.
Use the Group Attributes dialog box to change
and reposition the group name, add and reposition the bracket, and choose
a barline style for the group barline. For details, see Group Attributes dialog box.