What you may not have known is that you can do the same thing for certain drop-down menus hiding behind buttons—even when those menus aren’t yet visible. To take best advantage of this trick, you must first make sure you’ve got your machine set up such that the Tab key takes you to each available input. To do that, open the Keyboard & Mouse System Preferences panel, and then click on the Keyboard Shortcuts tab. At the bottom of this panel, make sure Full Keyboard Access is set to All Controls. You can now use the Tab key to select the drop-down menu, which you’ll need to do in order to then use the keyboard to access that drop-down’s menu items.
Jeff Johnson on 26 Feb 09OS X has a number of options for handling disk images-settings for such things as automatically opening them, moving Internet-enabled images to the trash after opening, verifying checksums, and more. You control all of these options (and a few more) in Disk Utility's preferences panel. If you change these settings often, though, you may tire of launching Disk Utility and opening its preferences panel. As an alternative-and with a side bonus of gaining one additional option-you can install a hidden System Preferences panel to make accessing these options a bit easier. There are two ways to install this panel; one requires Terminal, and the other uses just the Finder. If Apple were to update the panel at some point, the Finder method wouldn't reflect those updates, while the Terminal method always insures you're seeing the latest version of the panel.
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