If it does not allready exist somewhere, it would be handy to have a plugin that allows placement off the new upside down stair and slab without requiring aiming up under another block. My thought was perhaps <sneak key held> and placing resulting in the upper slab or upside down stair being placed without requiring something overhead or enough room to actually see the underside. Thanks
I want something that can allow you to place a slab on the upper half of the block by aiming above the half way line of another block. Although that could get frustrating while building...
Enjoy ! http://www.minecraftforum.net/topic/1084683-125-slabs-and-stairs-placement-fix-v03-bukkit-compliant/