b) the material station did really good on this function, once you select / npc the filament in the material station, they automatic selected the correct material of filament from the station.
But make sure you install the filament in the correct nozzle port and select the correct profile in cura while you slice the model.
The only problem I got with the material station, is that they do not have selection on color.
so I always accident print the wrong color when I have the same material filament in the material station.