diff --git a/gui/mainWindow/fittingPane.py b/gui/mainWindow/fittingPane.py
index d8f2135..1a0b43a 100644
--- a/gui/mainWindow/fittingPane.py
+++ b/gui/mainWindow/fittingPane.py
@@ -46,6 +46,9 @@ def init(self):
     store.set_sort_func(11, self.sortBySlot)
     store.set_sort_column_id(11, gtk.SORT_ASCENDING)

+    ########################EXPERIMENT HERE#######################
+    self.tvwModules.set_row_separator_func(insSep)
+
     #Cell renderers are our good old friends LETS MAKE LOTS OF THEM
     itemStateRenderer = gtk.CellRendererPixbuf()
     itemIconRenderer = gtk.CellRendererPixbuf()
@@ -182,6 +185,16 @@ def init(self):
     self.tvwModules.connect("drag-data-received", self.dragDataRecv)
     self.tvwModules.connect("drag-data-get", self.dragDataSend)

+def insSep(self, iter):
+    slot = self.get_value(iter, 11)
+    itern = self.iter_next(iter)
+    if itern != None:
+        slot_next = self.get_value(itern, 11)
+        if slot != slot_next and slot != None and slot_next != None:
+            self.insert_after(iter)
+            print 'inserting separator between ' + slot + ' and ' + slot_next
+    return None
+
 def dragDataRecv(self, widget, drag_context, x, y, selection_data, info, timestamp):
     #Figure where to move to
     drop_info = widget.get_dest_row_at_pos(x, y)