This menu applies to the currently selected Direction only.
You can turn on or off whether the Heading will be shown or secondary data (NavAid/Distance) will be shown. These options are useful if the chart becomes cluttered or Directions clash resulting in drawing data more than once.
On complex charts it is inevitable that some directions will be repeated, primarily when linking into a Common Area. The repeated direction can be hidden by clicking Do Not Display. Its purely a visual change and will not affect the creation of Nav Data.