The schedules listed in the Schedules Manager are a total list of scheduled flights that operated from that airport during the timeframe of the database selected. As with any Ai Traffic program, it sadly isn't feasible for us to model every possible aircraft type and paint them in every operator's livery, but we still list every flight in the schedules so that users can assign their own aircraft models and liveries to them.
For example, if you have a SF3 Ai model and a REX livery, the "Title=" entry from that aircraft's aircraft.cfg can be added to the Aircraft Manager > Liveries page and that aircraft would then show up on the correct flights.
More information on the Traffic Control Centre functions can be found in the FS Traffic manual: https://downloads.justflight.com/products/JFF003616/FSTraffic_MSFS_manual.pdf
Any livery requests can be made at the following forum thread: https://community.justflight.com/topic/4130/livery-requests
We actively monitor that thread and add new liveries to the product with every update based on those suggestions.
Mark - Just Flight