Monorail stations

A concept for monorail stations:

Each station can unload, empty, refill, and load up to four dedicated shipping containers simultaneously, shunting them around in a short queue. Emptying and filling can be toggled to allow dedicated loading and unloading stations.

The monorail car is relatively dumb and just follows a route, handling containers as instructed by stations. It arrives, tries to unload, tries to load, then continues on its route.