Does anyone know how to make rivers in the map builder?

[Malkor]

I've been trying to figure out how to do this for some time with no luck so far. Anyone know how to do it?

 

[nolegskitten]

in this panel on top :

This is the river tool :

 

[Malkor]

Oh for Pete's sake... I thought that must be it but I had never tried dragging the cursor to do it until just now. Thanks nolegskitten.

 

[nolegskitten]

you're welcome, I didn't find it the first time I looked either for some reason.