Comparative view for different blocks

I have a source which provides a vtkMultiBlockDataSet. I want to compare two blocks of the dataset. Right now I am using a ExtractBlock filter and using two different render views to show each block on its own view.

I would like to know if there is any approach to use a Comparative View for this task.

I’m facing exactly the same problem: Would like to setup a comparative view with each block isolated. And although comparative View Inspector allows to use block name on group datasets to iterate on, I cannot make it work. Do I nned to specifc block names as a string, or just indices? How does it work?