This function is only available if you have chosen a hierarchy for at least one characteristic. You can choose a hierarchy using the function Extras ® Choose hierarchy in the report definition or Edit ® Hierarchy ® Choose from the report list.
The function Expand all expands all the nodes of the report hierarchy.
If the cursor is positioned on one row of the report, the system only expands that row and the ones which lie below it.
For detailed information about hierarchies, see:
Overview: Characteristic Hierarchies
Functions for Editing Hierarchies