A while back I managed to use Modbuddy and add a new feature (copied and modfied the marsh feature's code in the xmls), which I could then place on my map in the Worldbuilder. The map loaded fine, and the feature worked fine in the 3D view, but the feature was invisible in the Strategic View (feature label and yields showed up, just not the 2D icon). I've tried searching the forums and I haven't found any mention of adding new terrain or features. So my questions are: 1. What are the current limits to modding when it comes to adding new Terrain types & Features? (Apart from Canals, which I've just read about) 2. I suppose the AI wouldn't be able to use or manage to do anything useful with new terrain/features? 3. Is it possible to remove (disable?) terrain/features from the base game? Could you have the game generate a map using only your added terrain & features?