score:1

Accepted answer

Would you like to achieve something like this? Demo

chart: {
  events: {
    render() {
      let chart = this,
        xAxis = chart.xAxis,
        controlLine = chart.yAxis[0].resizer.controlLine;

      xAxis[1].axisGroup.translate(0, -xAxis[1].axisGroup.getBBox().y + controlLine.getBBox().y)
      xAxis[1].labelGroup.translate(0, -xAxis[1].axisGroup.getBBox().y + controlLine.getBBox().y)
    }
  }
},

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