Just started and found the control method far below useful. Put water tower here ok moved tower to spot and .......and.........and.........nothing no action. Taped on spot nothing held on spot nothing. There is no "yes" button so nothing happens except uninstall this app! It's a simple drag icon game why make it hard to find method of use? I know it could be something I have overlooked but I am in the tutorial where it should be explained. Oh well