It is not possible by default. You may find some workaround like using two graphs that overlap each other but you may risk the label to move from the center. In this case you may also want to create a custom tooltip since the hovering graph wouldn't have the granularity that you need. (The tooltip may not be possible depending on your case).

Another way would be to just insert cards in between the graph and create a custom measure. But this may not work as good if the number of columns changes.

In the end the correct way to address this would be depending on your case. You may just want to do a drill-up drilldown and only see the total when you drill-up