Mining material transport by train

Allow for the mined material to be loaded unto trains to be hauled to a central sorting station.

I'm not sure what you mean by "mined material"? I checked the "loose" transfer module and it allows selection of iron and copper ore at the very least.

They mean when you dig up unsorted material allow the train to transport it in a mixed state to wherever the large ore sorter is to be processed in bulk rather than by the truckload. I would imagine because the large sorter has ten outputs the intent would be to use it to feed several production chains at once. This would have been my use for it as well.

Yes please. And by making the mixed stuff a "first level citizen" you will be able to use the mixed stuff in loose storages and conveyors too.

What KT9Q said. I would love to be able to sort my unsorted material at my production facilities.

This would make the train mining operation much more simple and enjoyable. Curently larger sorter become useless if you expand with train and you have to set up a lot of different train station and for each ressources