Change class of parent row

Hi Marcos,
 
Thank you for raising your support ticket.
 
We've prepared a sample demonstrating how to implement something similar with customizeCell(): https://jsfiddle.net/flexmonster/nwz6bmr4/.
 
Here's how it works:
 

1. Inside the customizeCell() handler function, all "parent" rows are detected and their cells are assigned the .fm-expandable-N class, which will be used later.
2. Inside the same function, the lower hierarchy member cells are read – if any of them contains the required member ("Germany" in the sample), the corresponding "parent" row should be painted. Therefore, we push the last "parent" row index to the global rowsArrToPaint array variable.
3. Finally, after the customizeCell() handler execution is finished, the aftergriddraw event is triggered. We assign the addExtraStyles() handler for this event – the function creates a new <style > tag, fills it with styles to paint the necessary rows, and appends the tag to the document head.

 
As a result, only the "parent" nodes with the "Germany" child members are painted.
 
Please let us know if this helps.
 
Best regards,
Mykhailo

Marcos,
 
Thank you for your response, good to hear the suggested solution seems valid to you!
 
As always, feel free to reach out in case there is anything else we can help you with.
 
Regards,
Mykhailo