The name 'Default-Group' must appear exactly as shown in the above line, since it is an
internally set name. The top-level group is given the name 'Field' in this example but the user
is completely free to choose this name (up to a maximum length of 16 characters); 'Campo' or
'FIELD' would have exactly the same effect. Then to introduce a field target, it suffices to
follow the above line with the line