Thank you for writing.
Yes, there is a way to achieve such behavior. I am sending you a small sample project which demonstrates how this could be implemented. The basic idea is to handle clicks on group rows in one of the grids, iterate to the groups of the other grid to check for a group with the same name and if there is such, make it current. Also, a small tweaking of the position of the scrollbar is needed in order to get the items aligned beside each other.
I hope you find this useful. Do not hesitate to write back in case you have any additional question.
All the best,
the Telerik team