add event point to chart

[sergey_gera09]

I have line chart with sales(date,count(sales)) as example: Qlik Sense Desktop (103 kb) закачан 26 сентября 2016 г. Joxi

And I want to add some events to the chart, like 2016-09-23, "prices decreased by 50 percent" to analyze events and results at one chart.

It is possible to add points to the chart, something like this: Qlik Sense Desktop (129 kb) закачан 26 сентября 2016 г. Joxi

it's a case from product management.