What CK said. Also, if you look at 40. below - that is the real key. You don't even have to mouse cursor over the component - if you want, the display will show the component level in the upper right corner so you can see everything at a glance.
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No bastard ever won a war by dying for his country. He won it by making the other poor dumb bastard die for his country.
-General George S. Patton