Change the button order as requested. Question: why is the order 'cb, gv' in wide but 'gv, cb' in narrow? Using the logic that the buttons affect the center booklist pane, shouldn't the order be the same?

src/calibre/gui2/init.py

@@ -568,7 +568,7 @@ class LayoutMixin(object):  # {{{
             self.bd_splitter.setSizePolicy(QSizePolicy(QSizePolicy.Expanding,
                 QSizePolicy.Expanding))
             self.centralwidget.layout().addWidget(self.bd_splitter)
-            button_order = ('sb', 'tb', 'cb', 'gv', 'bd', 'qv')
+            button_order = ('sb', 'tb', 'cb', 'gv', 'qv', 'bd')
         # }}}
 
         self.qv = find_plugin('Show Quickview')