nEAT! Works with the base game pretty good. Doesn't work with my mod for a reason I dont know: Is maybe because my mod has a pair for Town phase. Some suggestion to make this great feature even better: 1. Call it the Game Library and make it one part of a bigger in-game manuel. Or Civilization Tree (for now, because it is all the game has) instead of "structure tree." 2. Launch this screen from the little 'i' icon in game setup insytead of using the old layout. I am starting to think the civ json files need to be extrended or streamline.