5. You can change the optional property of the field in the ‘System Field Info’ panel.
In some cases the same field may be present twice in the message. The name of
the field can be changed in such cases. The description of the field can also be
changed. The type, tag and format of a field cannot be changed.
6. In case the simple field is repeating and the max occurs has been specified it will
be added as a section as shown below.