Customizing Y-axis to define groups

[Anonymous]

We have added 3 colums to the Y-Axis and when we drill down to the 3rd column each need to be seperated so that they are grouped as in this view.

The nthis would need to be sorted by the columns and then by the values. Is this even possible?

[lbendlin]

Please provide sanitized sample data that fully covers your issue. Paste the data into a table in your post or use one of the file services. Please show the expected outcome.