code: def clearAndSetComboBoxes(self, axesNames):
          
          logger.debug("Collector clearAndSetComboBoxes: {}".format(axesNames))
          check_is_a_sequence(axesNames)
          row = 0
          self._deleteComboBoxes(row)
          self.clear()
          self._setAxesNames(axesNames)
          self._createComboBoxes(row)
          self._updateWidgets()
docs: Removes all comboboxes.