To visualize how tiles combine together. Click on a square of the grid, there are 4 boxes above it where you can select Ground/WWall/NWall/Object for that square.
BUMMER, i was hoping this was a tile splitter ( so i could model something in 3d and split it into tiles easily.
Update: so i tried using this and it seams to place items on there and random like ( i am guessing i am doign it wrong), can anyone make a 30 sec video of how this features should work?FIGURED IT OUT, WHAT A COOL FEATURE