Less Colisions, New Loaders, Drills, Steam Engines, Boilers and much more
Large total conversion mods.
I can only use a Loader after researching Logistics, and when I research other Loaders, it shows a duplicate of "Loader" and "Loader" which doesn't give me a Unloader.
it is just a loader that you need to switch to get it on input/output
Oh alright, I didn't think of trying Shift+R.
its should be a simple R botton press while holding you mouse arror at the loader.