Splinter has this, and it's very important for medium-sized reviews and larger. Without this it is hard to be sure everything has been reviewed.
For what it's worth, this is the sort of thing that needs to be made feasible: https://reviewboard.mozilla.org/r/28317 It's never going to be easy, but feasible.
Product: Developer Services → MozReview
This was actually fixed long ago. See also bug 1306091 for an improvement.
Status: NEW → RESOLVED
Last Resolved: a year ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1147393
You need to log in before you can comment on or make changes to this bug.