DECLARE
CURSOR GRP IS 
 SELECT RowNum rn, Letter_Group_ID||'-'||A_Desc    AName,Letter_Group_ID
 FROM  Hrs_Group;
 
BEGIN
Clear_list('Letter_Group_ID');

FOR I IN GRP LOOP
Add_List_Element('Letter_Group_ID',I.rn,I.AName,I.Letter_Group_ID);
end loop;
 
END;