Hiding and showing elements
The component allows users to hide and show predecessor and successor entities in the graph. This can be achieved
by using the various CompanyOwnershipModel hide/show methods like
hidePredecessors or showPredecessors.
This hide/show functionality is already available in the default DefaultContextMenuItems.
See the following demo on how to bind those methods to additional UI elements, so that they can be triggered interactively
with one click.