Query
Management needs to see the income statement summarized to the parent level of any class; standard class (class, department, location), or parent of custom segments.
The problem with the hierarchy option is, it displays the child’s details.
How to suppress the childs and display the parent of classes and parent of custom segments only as columns?
Solution
Per my understanding, you wanted to only show the parent class/custom segment in a report. Per checking, this is currently a system limitation and related concerns are logged under Enhancement #163320 Reports > Columns – Ability to expand / collapse column hierarchy as you can currently do with rows.