Changing tileset?

[Murre]

I'd like to know if there's any way of changing the tileset on a map. I recall seeing snow, grass and underground terrain on the same map, so I supposed it would be possible.

Thanks in advance

 

[Murre]

Double posting since I bothered to search and found what I was looking for. Sorry for using space D:
(if anyone needs it in the future: http://www.thehelper.net/forums/showthread.php?t=144398 )

 

[The-Shadows]

advanced > modify tileset? > [click] use cutom tileset