We need to include a nested group in a box plot chart, same as in the next image:

Until now Qlik Sense box plot chart let you define:
- inner dimension (which defines a box, bill in the sample image)
- outer dimension (which defines the boxes shown on the dimension axis, day in the sample image)
- measure (total_bill in the sample image).
But have no option for a group dimension (smoker in the sample image).
Thanks!