Field help (ADO1STY) 

The style makes reference to a numeric value corresponding to a "H1","H2,"H3" ... marker according to the number chosen. If this field is empty, by default it takes the value 3. For sub-paragraphs, it is advisable to use 4, 5 or 6 according to the level. The title 4 is presented in a band : a pictogram gives access to the field helps on a visible field if a screen is associated with the paragraph.