For my project I have 1 event who fill 2 LBs (leaderbards), one for the Score (max is better) and one for the Time (Min is better), each partionned by LevelID, and I got it.
But now I want to save the player Time in the ScoreLB and player Score in the TimeLB when he do a better Score/Time, I duplicate my time and score attribute for have kind of "supplemental Time and Score", but i try all aggregation Type, that always Fail
My mistakes was to register my Time and Score in 2 LB with 1 Event, I doubled the event, and the Supplemental attribute work !!
The end !