viewer.append(self.navbar)
         viewer.append(init_gallery_widgets())
         self.side_box = Gtk.Box(orientation=OR_V)
-        self.side_box.append(init_sorter_and_filterer())
+        self.sort_box = init_sorter_and_filterer()
+        self.side_box.append(self.sort_box)
         self.side_box.append(init_metadata_box())
         box_outer = Gtk.Box(orientation=OR_H)
         box_outer.append(self.side_box)
         """Handle keys if not in Entry, return True if key handling done."""
         if isinstance(self.get_focus().get_parent(), Gtk.Entry):
             return False
-        if Gdk.KEY_G == keyval:
+        if Gdk.KEY_Return == keyval and\
+                self.get_focus().get_parent().get_parent() == self.sort_box:
+            self.activate_sort_order()
+        elif Gdk.KEY_G == keyval:
             self.move_selection_in_gallery(None, None, 1)
         elif Gdk.KEY_h == keyval:
             self.move_selection_in_gallery(-1, None, None)