The Drawing Resources folder in the browser contains a definition of a default border that you can add to new drawing sheets. You can also define a custom border, or copy a drawing border definition from another drawing.
You can change the size and general properties of the default border or a zoned custom border as you add it.
You can create two types of custom borders: A zone border, or a border with no predefined zones. New custom borders are added to the Drawing Resources folder in the browser.