specifies the name of the group to be added. The name must not already
exist in the list. A generic group name is not accepted. If you do not specify
a group, the current group name is added.
LIst(listname)
specifies the name of the list to which the group is to be added. If the
list does not already exist, a new one is created. If LIST is not specified,
the group name is added to the current list if there is one. A generic list
name is not accepted.