Hi, @aleksandra_budnik!
I use the nested Rows plugin on handsontable v.7.0.3 and I was wondering, is there any chance to get the “parent” index by row? I need this because in cells function I have to get the sourceData and apply some logic depending on it.
Thanks in advance! 
Hi @slavozar.vargulev
There is no API method to get the indexes of the parent row. But here’s an approach that you can adapt https://jsfiddle.net/uh0sL2bw/4/ (based on the special className
that is added to a TH
element).
@aleksandra_budnik Thanks very much! I will defenetely play around with this one and try to see what’s the performance using it.