code: def setExpertLevel(self):
          
          g = get_root(self).globals
          level = g.cpars['expert_level']
          if level == 0:
              if self.val.get() == 'CCD TECs':
                  self.val.set('Observe')
                  self._changed()
              self.tecs.grid_forget()
          else:
              self.tecs.grid(row=0, column=3, sticky=tk.W)
docs: Modifies widget according to expertise level, which in this
          case is just matter of hiding or revealing the button to
          set CCD temps