Ranking Multiple columns in a matrix

Here is the link

https://drive.google.com/open?id=1Dr-XRSW58BbE5x8iyqFHvbvLXci6ljct

In the tab called Overall, you can see a matrix that is showing 3 levels, level 2 and event descirption are only showing the top 3 issues where as the level 3 column shows all. What I am looking for is the Top 3 level 2 events by duration that then break into the top 3 level 3 events and then the top 3 evenet descriptions.

Thanks so much for your help :)