Ability to assign items to All or Multiple wagon slots

[haberslam]

I think it'd be helpful to click on a train's cargo wagon, then click and drag your cursor across multiple slots (like you would when limiting a chest)... then hit the middle mouse button and assign all the selected slots to whatever your specified item choice is.

Currently, [0.13.15] it can only do this one slot at a time.

[Xelephant]

To set Filters faster i take a few items i want to filter, put one in each slot an click the middle mouse button on each item.

Setting Filters gif

Filters.gif (296.04 KiB) Viewed 764 times

But your suggestion would be a nice to have feature.