BinaryConstruct/Terraria-Map-Editor — pull request #280 by SinisterStairs (2012-05-02 14:18:18+00:00)
Title: Flip modes added

* Flip ("reverse") the clipboard buffer along its x- or y- axis. This is provided primarily for blocks, walls, wires and liquids.
* Multi-tile sprites such as furniture, chests, etc. will be *discarded* and not flipped, except in very limited situations.