Q. Are there waterfalls in the editor?

A. No, not at this time, though after looking at some of the files used in the game we did find a reference to a waterfall to be used in the editor but we have no idea why it wasn't included.

Q. Is there a way to put buildings on my custom designed map?

A. Yes there is.  You can find that information in our editor forums area.  What it basically entails is that you create your map in the editor, then load up your custom map in the game and place the buildings you want, then save it.  Then copy the saved game from your save folder to the map folder and rename the extension of the file from .cbr to .cbm and you will then have those buildings you placed when you had the map loaded in the game now on the map in the editor.  There are certain limitations of what you can then do in the editor after this.