How to place hut, tribal village in World Builder

[gelin]

I'm sorry if i sound really noobish, but i cant find a way to put huts in world builder! I made an entire map out of world builder and I cant find a way to put in huts! And yes, i did try to search the forums for information but nothing turns up, is this something everyone knows except me?

Am i really dumb?

 

[Zuul]

Map Mode->Improvements->Tribal Village (2nd)