You can choose to display all of the relationships or none of the relationships that exist in the current container. The show option displays all the relationships among the objects in the current container and all the relationships between the objects in the current container and the objects in other containers. For the hide option, none of these relationships display.
Alternative: In the View tree, right-click the name of the applicable container, point to Relationship Visibility, and then click either Show Relationships or Hide Relationships.
Show and Hide All Relationships in a Model View
Show and Hide All Relationships Connected to an Object
Show and Hide All Relationships that Exist Between Objects in Other Containers