To view the properties of an existing group, select the group from the
group list and click Properties from the button
menu (or choose =>
from the pull-down menu). A window
similar to Figure 19-3 will appear.
The Group Users tab displays which users are
members of the group. Select additional users to add them to the group,
and unselect users to remove from the group. Click
OK or Apply to modify the
users in the group.