Reusing a field in the Show me section of a report

Related products: CS Reports & Dashboards

I am trying to look at the same field in the Show Me area and see three different lines in my line graph.  I would like to see the average of that field as well as the Maximum and Minimum, grouped on the By field.  Is this possible? 



Not currently but agree this would be very valuable!
Is this functionality on the roadmap? I would love to have the ability to compare values this way for our survey scores.