Ilograph diagrams can have multiple perspectives. Perspectives allow you to see how resources are related in different ways within the same diagram. The available perspectives in a diagram are listed at the bottom of the app in the perspective tray. Click on a perspective name to change to that perspective.
If a resource is visible in more than on perspective, then dots will appear in the top-right of the resource when it is selected. Each dot corresponds to a perspective the resource is a part of. Click on a dot to change the perspective while maintaining the selected resource.