I know this is kind of a noobish question, but i was reading on the Valve-ERC website, about creating water in the new hammer editor, and I can't seem to actually get water there. It only seems to talk about cubemaps, which i created one, but then it says i have to put it on the surface of the water, and I dont have any water there yet. 
any help? I'm just making a simple hl2dm map to practice my mapping on (basically in a big hollowed out box, with some things in it, different surfaces, etc)
any help? I'm just making a simple hl2dm map to practice my mapping on (basically in a big hollowed out box, with some things in it, different surfaces, etc)