Changing terrain mid-project

[Nevanii]

Is it possible to change the set of terrain textures during the project? im pretty new to this and I've selected wastelands, but i'd also want to use some of the ashenvale type stuff. is it doable?

 

[Pwnica]

Yes, on the Upper left of the Editor if i remember Right:
Module -> Tileset

 

[warbucket]

Are you able to add new tilesets to your existing one? I created a map of Village - Fall but I'd like to add a dungeon to it in the corner of the map. How can I add dungeon-specific tilesets to my game?

 

[Meronia]

Are you able to add new tilesets to your existing one? I created a map of Village - Fall but I'd like to add a dungeon to it in the corner of the map. How can I add dungeon-specific tilesets to my game?

You can add them using NewGen editor