When the type is set to Header, it becomes possible to break up the Form into separate sections, each separated by a title. The title line also allows the user to expand and collapse these sections in a Form.
The titles, called 'labels' are entered in the screen below:
By default, a Header is expanded (opened) when the User opens the Form.
If you set the value to 'Collapsed', it will be closed upon opening of the Form. The User will need to click on the header in order to open it.
Use the button to save the changes and remain on this screen, or use the button to save your changes and return to the Overview screen, or use the button to discard any changes.