@Sekiraze: That seems like a really great system if you're making a 2d minecraft style game (which could be cool if it somehow has a lot of variety to offer in it's 2d world) I believe a script called Wraptile is part of the 2d minecraft engine (though the demo is old, so my rmxp can't open it). The Wraptile script can change a tile on the map to another tile from the tileset, but when I try it with H-mode7, the result cannot be seen.
@ForeverZero: Haha, yeah already tried google:P