Add scatter point to candlestic plot

I have created a function that “catches” the x and y coordinates of my candlestick chart.
Is there a way to add, clicking on the chart, a marker or a point scatter my candlestick chart?
Thank you

This http://codepen.io/etpinard/pen/VagEyV should help get started.

Thanks, it was useful.
Another question: in plotly.finance, how i can remove labels of increasing/decreasing values?

here’s how: http://codepen.io/etpinard/pen/zqbpmv