One of the biggest new feature that Lion has is Mission Control Keyboard and like most new features it brings with it some new keyboard shortcuts. Swiftly move between spaces using Command+Left Arrow or Command+Right Arrow commands is one of these shortcuts.
However when you actually try to use it, it conflics with the shortcut I use dozens of times a day to jump to the end of a line of text. If you are facing the same problem and you have found that Command+Right or Left Arrow no longer does what it used to do then here’s we have solution for it.
Normally in order to resolve similar problems, you need to go System Preferences. But not to the Mission Control pane there, which replaces the Exposé and Spaces pane you were used to in (Snow) Leopard.
In case of Misson Control Keyboard you need to head to the Keyboard preferences and then inside there to the Keyboard Shortcuts tab. Click “Mission Control” in the list to the left, and you’ll see the default controls for the new feature. Whereas in Snow Leopard, the default for switching Spaces was Control+Left and Right Arrows, with a drop-down for you to select alternative options.
In Lion, same has been replaced by an editable field. Click in it, and type a new shortcut of your choice. If you don’t want to use Spaces at all, you can simply uncheck these shortcuts and they’ll no longer be active.
In my case, that’s given me back my jump-to-end-of-line shortcut. However, You can set it as per your requirement like jump-to-next-browser-tab shortcut, or jump-to-next-RSS-feed shortcut. Whatever it is, if you were previously using Command and the Left/Right arrows for something specific, this should put it back how you wanted it.