Use Format Limb / Group to change limb row height and top and bottom margins as well as to define name styles for the selected limbs or limb groups.
Steps
Choose Staff from the Format menu, then choose Format Limbs. or Open the Limbs pane in the Format Bar.
or When designing a staff in the Staff Dialog,
open the Format Limb pane in the Staff Dialog's format bar on the right..
Use one of the following options:
Row Dimensions:
Use Row Dimensions to change a limb row's height or top and bottom margins.
Row Subdivision:
Use the Row Subdivision tab to define a subdivision of a limb row.
Group Options:
Use the Limb Group Options tab to show or hide a limb group's grid and
to define additional performer names for a limb group.
Limb Names, Group Names:
Use the Limb and Group Names tab to change the way limb and group names
are displayed.
Performer Names
Use the Performer Names tab to associate a performer name with the selected
limb groups and change the way performer names will be displayed.