A specific perspective?
Depending on what you mean by next seven days (due, deferred, chosen), you could group actions by due date or defer date. You’d see more than just the next seven days, but if you collapse all the groups, “within a week” is the top group and you can look at it.
I would place all tasks (assuming you mean single action and not a traditional multi step project) in a single folder and create a perspective focusing only on that folder.
I’d like to see the same functionality. I suggest you email firstname.lastname@example.org to vote.