'Set model data'

def set_data(self, data):

    self._data = data
    keys = list(data.keys())
    self.breakpoints = []
    for key in keys:
        bp_list = data[key]
        if bp_list:
            for item in data[key]:
                self.breakpoints.append((key, item[0], item[1], ''))
    self.reset()
