When I minimize a section, I would love to still see the sum/average or whatever other summary stats I had visible.
Example: I have a section with 125 tasks. One of the columns is dollar value of the task. The sum of all the values is visible at the bottom of the list.
When I collapse the list, I would still like the see the sum value.
This helps me gather a big picture view of my project when I can collapse multiple sections and see the sums/average of each section – easily comparing.