[Solved]-Position events below analog area in Highcharts combined line/timeline chart-Highcharts

i can suggest two solutions:

• add a second yaxis and set heights for both y-axes:

   yaxis: [{
       height: '50%'
   }, {
       height: '50%',
       top: '50%'
   }],
  

demo: http://jsfiddle.net/blacklabel/e0zhmyr7/

api: https://api.highcharts.com/highcharts/yaxis.height

• change the y values for x-range series in the current implementation

demo: http://jsfiddle.net/blacklabel/ow1357tq/