How to wrap column label in pivot table?

Hello,
 
Thank you for your question.
 
In case headers of hierarchies need to be wrapped, we would like to kindly notice that such functionality is implemented by default. Please check out an example demonstrating usage of long captions for hierarchies and the way the component wrap them on the grid.
 
If your requirement differs from the one described above, our team would like to kindly ask you to provide additional information about the desired result. It would be useful for our investigation if you could provide us with screenshots or modify the example mentioned earlier in the way it demonstrates the part that needs to be changed.
 
We are looking forward to hearing from you.
 
Best regards,
WebDataRocks Team