The most direct route to an analysis file's call graph is through the Analysis Summary's overall analysis section. The call graph link, presented next to the icon is used to open that analysis file's call graph. In addition to using the navigator link in the summary report, you can also access the call graph from any of the other report types via the contextual menu or one of the other report's toolbar. Right-clicking on a function, or a group of functions, and choosing the Select in Call Graph menu option opens the call graph with the chosen function or functions selected.