fp.js

  changeOptionValue(optionIndex, valueIndex, newValue) {
    const state = this.state;

    const newState = {
      ...state,
      options: state.options.map((option, i) =>
        i === optionIndex ?
          { ...option, values: option.values.map((value, ii) =>
            ii === valueIndex ?
              newValue : value
            )
          } :
          option
      )
    };

    this.setState(newState)
  }