Kim,
We are in the same situation as you. I put in a support inquiry to Moodlerooms and it looks like they added a "Previous" and "Next" option in the Joule Grader.
Our update to Joule 2.7.x occurred over the Christmas break. We had several noticeable changes that were unwelcome and mentioned those to Moodlerooms (technically Behind the Blackboard, the support portal). We received a maintenance patch around the end of January or beginning of February. It looks like this feature (along with an enhanced date/time stamp) was part of the maintenance patch.