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Navigation through the UI is designed to mimic stepping down through the hardware hierarchy. This can be done from with in the main view or from the navigation breadcrumbs.
Clicking on the element you want to step into allows navigation down from the Start View to the System View, the Board View and finally the Chip View, while the navigation from the Chip View to the Memory Map View is completed through a button located in the bottom right-hand corner of the view.
Clicking on the arrow next to a step in the navigation breadcrumbs will show the list of available next steps from that view. From here it is possible to navigate to the next level down in the hierarchy or any previous levels of the hierarchy for any component.