$config['keystrokes'] =
array(
    array( CKEDITOR_ALT + 121 /*F10*/, 'toolbarFocus' ),
    array( CKEDITOR_ALT + 122 /*F11*/, 'elementsPathFocus' ),

    array( CKEDITOR_SHIFT + 121 /*F10*/, 'contextMenu' ),

    array( CKEDITOR_CTRL + 90 /*Z*/, 'undo' ),
    array( CKEDITOR_CTRL + 89 /*Y*/, 'redo' ),
    array( CKEDITOR_CTRL + CKEDITOR_SHIFT + 90 /*Z*/, 'redo' ),

    array( CKEDITOR_CTRL + 76 /*L*/, 'link' ),

    array( CKEDITOR_CTRL + 66 /*B*/, 'bold' ),
    array( CKEDITOR_CTRL + 73 /*I*/, 'italic' ),
    array( CKEDITOR_CTRL + 85 /*U*/, 'underline' ),

    array( CKEDITOR_ALT + 109 /*-*/, 'toolbarCollapse' )
);