Different tooltips on multiple lines

I would like to have multiple lines on one chart.
I can do so using addSeries() method.
The problem is that for every line the tooltip is the same.
Can I somehow superimpose multiple chars on the same canvas?

You may define tooltip property for each series:

var chart = new dhtmlXChart({

tooltip:“titleA”
});

chart.addSeries({

tooltip:“titleB”
});