Organization Chart

I created the company organization chart. When I extract the report, the title of each page refers to the name of the reference model. I would like, instead, the title of the page will be the name of the reference parent/grandparent division. If we imagine the organization chart as a tree, I would like the page titles will be the names of the first main branches (also the pages of the branches below).

does anyone know how to do this?

thanks