In Projects using Hierarchical filters you can select which groups to be shown in the table based on the group selected by the user, as an example the table can show the selected group plus the parent group and the Total and so on.
You can also, for instance, creating top lists, ranking etc. as the benchmarks are very often calculated against all the groups in the same level of the hierarchy.
Example: if the Hierarchical structure looks like the image below and the new option is applied all the cities will be displayed in the table if the user selects any of the cities. If the user instead selects any of the countries all the countries will be displayed in the table.
The image below shows the Hierarchical filter structure that the example above refers to.
The option to do these comparisons is located among Filters > Hierarchical Group Settings panel, see image below.