How to add marker to center position in ios charts while scrolling horizontally with increasing scaleX and enabling drag

I am using the Charts framework from Daniel Cohen Gindi. I am scrolling chart horizontally by increasing scaleX value and enabled drag as described in answer of this question

Set an horizontal scroll to my Barchart in swift

I want to add marker at center position when user scrolls horizontally. I know "chartTranslated" delegate is called whenever user drags the chart but it doesn't contain the value of "ChartDataEntry" and "Highlighted" like in "chartValueSelected" delegate method.