Terrain paint texture over

[YouGroove]

I have grass texture on first slot and rock texture on second slot and i begun to paint on terrain without using any slopes angle (not needed)

 

It is possible to erase second texture rock, or paint over with first texture grass ?

I could not manage to change the rock texture on some specific part to paint over the grass texture.

[toddgrayson]

Holding the CTRL key down while painting will erase the texture you are using on the terrain. You can select which testure you wnat erased by highlighting the texture slot in the terrain editor tab.