A, I guessed that, just saying I cant have a good feel of the joy of this feature until it find a hidden pref. for something I know or own.
We've given you examples, for things you know and own. Dock, for example.
In my last post, I listed several preferences for Dock. If you go to System Preferences->Dock, you'll see some but not all of these options; the ones you don't see there are "hidden".
For example, System Preferences will let you set "Minimize windows using:" to "Genie Effect" or to "Scale Effect". The "Suck Effect" isn't listed, so it's a "hidden setting".
If the dock is narrower/shorter than whatever edge of the screen you put it on, it gets centered on that edge. But by setting the hidden preference "pinning" to "start" or "end", you can slide it along that edge to a corner. Center the dock again by setting "pinning" back to its default value of "middle".
