sorting horizontal bar chart by total across all series

When you add a series to a horizontal bar chart, it automatically orders (sort) the bars based on the values in just the first series by default — which can cause the order to feel misleading or inconsistent if your focus is the total across all series.

Would be good add a property which allow you to select sorting by default (1st series) or total across all series OR select from series you prefer including one option for total across all series.