Next, let’s interfere with the water levels. We’re not going to do anything major, but this will give you a sense of what’s possible. Choose Water from the drop-down list on the left. Moving the left slider (marked W) up and down will alter the overall depth of the water on the level, so you can dry up that lake or flood everything except for the island. Once your project is finished, come back here and check the Enable Waves box to increase the graphics ability.