Our Pilot Reserve Level, also know as "The Matrix" shows the entire month, by day, and shows the number of Reserve Pilots required (based on some cosmic formula) and how many are actually available.

If Available > Required, the numbers show up blue (positive coverage) so people are able to drop rotations, move Reserve days, etc.

If Available < Required, the numbers are black (negative coverage), so trip drops and reserve days moves are not allowed (with a few exceptions)