A Boolean expression that specifies whether the element is visible or hidden on
the surface.
By default, the Visible property is True. Use the Visible
property to hide an element. Use the Remove
method to remove an element. If the element
is not visible, any incoming or outgoing links are not visible as well. The OutgoingLinks
property specifies the list of links that starts from the current element. The
IncomingLinks property specifies the list of links that
ends on the current element. The ShowElements
property retrieves or sets a value that indicates whether the elements are visible or hidden.