Copying Tiles

I would like to know if there is a way I can copy tiles at runtime, i.e. copy the heightmap and splatting info from one tile to another (thus replacing the latter). Here, by tile, I am referring to the ETM Tiles. If this would require modifying the ETM code, I am hoping for some general pointers as to where in the ETM code I need to look.

Thanks.
(ETM 2.3.1, Ogre 1.6.1)

this would be helpful....