A feature of SuperTables is that it allows your dashboard users to create their grouping hierarchy. This can be done without the need for a Tableau fixed Hierarchy and in any order your dashboard user would like. To use this feature just drag a column to the grouping bar and drop it in the grouping bar. The rows will now be aggregated based on the grouping which you can select yourself. You can use multiple levels of grouping to create your hierarchies just by adding columns to the grouping bar.