A Section Break Field is used to divide the fields to different parts of a form. The "Section Break" field properties may be set once the field is clicked on.
Field Label: This property is the text placed next to the form field that describes the type of data you want visitors to input.
Instructions for User: This is an optional property that displays the text specified to your users while they’re filling out that particular field. These instructions appear below the field input box.
Field ID: This property is a unique value assigned to a specific field. It can be used in conjunction with dynamic tokens to insert entry data to customize the AutoResponder confirmation message. Note: This value is assigned after a form has been saved.
Once you set the field options, please do not forget to click "Save Form" to save your work.