Index: channels/specbuttons.py
==================================================================
--- channels/specbuttons.py
+++ channels/specbuttons.py
@@ -53,10 +53,11 @@
 
     # Extra buttons
     def update_buttons(self, parent):
     
         # define table width (2 rows default)
+        y = conf.specbuttons_rows if "specbuttons_rows" in conf else 2
         y = max(min(int(conf.specbutton_rows), 4), 1) # 1 <= y <= 4
         self.specbuttons.resize(y, int(math.ceil(len(conf.specbuttons) / y)))
         # clean up
         for widget in self.specbuttons.get_children():
             widget.destroy()