That would be a great improvement - what we need is basically the same thing as the Tablix in SSRS
I have a project where this would be perfect. We are implementing this in Excel using a Power Pivot table, and then a series of complex dynamic array formulas, but it is less than ideal. Would love to see this visual implemented, or functionality added to the existing Matrix visual.
This is a feature I have seen multiple clients requesting for while working in different domains..
I am struggeling with this also
I know the concept as a row & column area, in which e.g. multiple column areas with different column filters can be defined.
Link to screen shot https://www.dropbox.com/s/1fwr50wixywgwvk/Screenshot%202020-02-25%2022.43.35.png?dl=0