When several fields form a natural hierarchy,it makes sense to create a drill-down group. Eg- 1. Country,State,City 2. Year,Quarter,Month
In order to drill down on segments and dashboard, users need to define hierarchy in models and save it.
Now users need to create a segment using the same model and choose different hierarchical dimensions with required measures.
For enabling drill down users can go to settings and choose drill down and enable it.
Now, users can click on any state and the drill down option appears.
Once the drill down is clicked, the result will display all the cities which are present in Maharashtra, with the unit quantity count.
Users can do drill ups as well at any level, if the dimension is not the first one in hierarchy.