QlikView is an associative BI tool, not a hierarchical one. The different bricks of a hierarchy are splitted into the different levels so that can be mixed up.
However, we want sometimes have a hierarchical representation :
This document explains you the different steps to build a hierarchy. And also answer to the problem we often face the first time we build one hierarchy in QlikView: the aggregated values have no data !
The XLS file contain a hierarchy and some data that are used in the examples of the PDF.