1st level: 24 hours x 7 days
2nd level: 1 hour x 7 days
3rd level: 1 hour x 1 day <- new level (with totals pie chart by airline like the previous levels).
This would be useful on its own, but also it would help up spot any slot related issues. I have a suspicion that 1 slot hour of one day in my airport is wrong, but I have no way to check it easily...
I beleve we used to have this at one point. It was chaged to 7 day, as opposed to keeping it and adding a 7 day x 1 hour grid.