Compact and UPS-friendly 1x1 loaders. Works with train cargo wagons, circuits, filters, and modded belts from Bob's, Krastorio, FactorioExtended Plus, Space Exploration, and Ultimate Belts.
When copying half of a train square to rotate and duplicate on the other side of the block, the copy-source miniloaders that are set up in a split lane configuration lose their split lane nature after the copied entities are pasted. The pasted miniloaders retain the split-lane setup that the source had.
Pick any of the blocks with split loaders - Tin Crystal has several. Copy the square, rotate the copy, then paste in the same square. If you paste far away, it doesn't trigger. I just saw that in testing...that's weird too.