You just finished previewing your comp and it looks great, except for that one layer. A couple of quick tweaks to its keyframes and it would be perfect. You'll soon get tired of twirling down through each effect just to get to your keyframes. The fast way is to press U to toggle your Uber Animating Keyframes' view. Because we need all the help we can get, we think of this shortcut as U for User Keyframes.