When viewing a folder with sub-folders, have a divider between the tasks showing which sub-folder they belong to.

When I have a folder with multiple sub-folders and I want a global view of all tasks within the main folder, I am left seeing all tasks for all folders with no indication as to what sub-folder they belong to. I would like them to be arranged by sub-folder then by date etc and to clearly show me by dividers what sub folder the tasks are in.