Add Aggregation Type of "To Do" for Type "Task"

[nestep]

I'd like to be able to show number of remaining hours on open tasks in the sprint associated with each team member. I can do number of (count) like so:

Can you add "To Do" (remaining hours) to the drop-down for "Aggregation Type"? Currently the list only has these:

• Count
• Actuals Total
• Estimate Total