The Plan Leverage report is a major extension of the Sensitivity Analyzer. It's designed to help you find all of the "interesting stuff" in your Plan -- automatically -- and it will often do just that, finding relationships between parts of your Plan that may not be obvious. Familiarize yourself with the workings of the Sensitivity Analyzer first, then just click the "Plan Leverage" button on the Plan Viewer's Describe menu. The resulting report is very interactive. Experiment with the settings in its toolbar to filter and sort the results, and right click on any Dependent Cell to get a menu of additional options.