def get_filter_types(self):
        l = super(MainWindowNeo, self).get_filter_types()
        l.extend([('Block', 'block'), ('Segment', 'segment'),
                  ('Recording Channel Group', 'rcg'),
                  ('Recording Channel', 'rc'),
                  ('Unit', 'unit')])
        return l
Return a list of filter type tuples as required by
dataset/ETHPy150Open rproepp/spykeviewer/spykeviewer/ui/main_window_neo.py/MainWindowNeo.get_filter_types