hey the Truck station has 2 inputs and 1 output. and you can only setup one that station either in or out then if you want another station to be diffrent then put that next to that other one, But you cannot choose what items the truck gonna get thats why use 1 belt line for each stuff you want to be picked up that mean more stations too
if you build the belts so items has own path to go with.. if you ever played factorio then think kind of that way.. and if you have not played that then you should watch some streamers or youtube videos how to manage stuff.. then you know the basic of this game too.
this game is all about managment and building,, and dont forget you have splitters and you can also merge some are kind of the same as the splitter..
splitter is that you have 1 item to go 3 diffrent places max but merge can bring 3 items together on 1 belt line so use those too..
i hope this cun help you to understand more. i cannot tell you how you do things since you can have diffrent idea of this than me...
