Option to automatically simplify debts with a person if you're entirely settled.
When looking at a group, a friend owed me $X. When looking at the friend directly, I owed him $X. In the overall dashboard, we were fully settled up. This was really confusing.
I found out why, and a fix, here:
http://feedback.splitwise.com/knowledgebase/articles/117962
I believe that if SplitWise can detect you are totally settled up with a person across all groups, it should automatically 0 out all balances with that person in all groups. This could be optional.

We now do this simplification when you settle up on an account. We probably won’t add a more automatic version of this, but if you settle up the total amount you owe a friend, it simplifies it all to 0 in each relevant place.
Marshall