In iOS 7, Apple quietly added new keyboard shortcuts to some of its apps and gave developers the capability to add their own. So if you use a Bluetooth keyboard with your iOS 7 device, be sure to bookmark this list of shortcuts that Federico Viticci is working on. Since there is no official documentation from Apple, Viticci is learning them by trial and error, as well as from reader submissions, and he will update the list as he learns more. follow link
Disable Caps Lock
If you find yourself pressing the Caps Lock key accidentally as much as I do, note that you can disable it entirely in Mac OS X. Open the Keyboard & Mouse preference pane, click the Modifier Keys button, and in the dialog that appears, select No Action from the Caps Lock pop-up menu. You could remap it to another modifier instead, but that might make using differently configured Macs more difficult.
- ExtraBITS for 11 November 2013 (11 Nov 13)
New Keyboard Shortcuts in iOS 7