const bool hasColMap (tslot && tslot->hasColumnMap());
   const bool showBlockOps (SlotGUIUtils::supportsBlocks(_slot));


   // *************************
   // *** Build Column Menu ***
   // *************************

   if (slotUsesRowColMenus)
   {
      _columnMenu = _menubar -> addMenu (tr ("&Column"));

      if (hasColMap)
      {
         _columnMenu -> addAction (_setColumnValueAction);
      }
      else
      {
         _columnMenu -> addAction (_columnLabelsAction);
      }

      if (_isPeriodicSlot)
      {
         _columnMenu -> addAction (_perioSlot_AddColumn);
         _columnMenu -> addAction (_perioSlot_DupColumn);
         _columnMenu -> addAction (_perioSlot_DelColumn);
      }
      else // (!_isPeriodicSlot)
      {
         if (showBlockOps)
         {
            _columnMenu -> addAction (_setNumBlocksAction);
            _columnMenu -> addAction (_insertTableColAction);
            _columnMenu -> addAction (_appendBlockAction);
            _columnMenu -> addAction (_deleteBlockAction);
            _columnMenu -> addAction (_deleteLastBlockAction);
         }

         if (showSetDim)
         {
            _columnMenu -> addAction (_setDimensionsAction);
         }
      }
   }

---