Ever wanted to feed your locos from a cargo wagon?
Tired of your artillery wagons constantly running out of ammo?

Well look no further!
With these Train Conveyor Tubes you can move that cargo around your train with ease!

Just put a Conveyor Tube - Pull into a cargo wagon and either set it to pull from filtered inventory slots or just items that match the internal filter

Then
A: put a Conveyor Tube - Fill into a loco, set the filtered input to your desired fuel
B: put a Conveyor Tube - Fill into an artillery wagon, set the filtered input to what ammo you want to fire
C: both A and B
And watch as your cargo gets distributed to where its needed!

(Suggestions for better mod explanation are welcome)
(This is my first Factorio mod with about 30 hours of work (as of original modpage posting) after never doing any Factorio modding before, hope all works fine for others)