The current styles (as of March 20, 2021) are Acacia, Asian, Birch, Caledonia, Cave, Dark Oak, Fortress, Jungle, Medieval Birch, Medieval Dark Oak, Medieval Oak, Medieval Spruce, Mesa, Nordic, Sandstone, Spacewars, Stone, True Dwarven, Warped, and Wooden. Middle Dropdown: This is where you will see the different styles of the buildings available. If you haven’t made any, this category will not show up.
Left Dropdown: Here you will see 3 general categories: My Schematics, Decorations and Huts. Then, right-click with the build tool on a solid block where you want to place that building. To place a worker hut or building from the mod, you’ll first need to craft the specific block for that building (see Recipes). Step Two: Designating a Building Location
You can also get a build tool in the Supply Camp or Ship in the same rack as the Town Hall. The first step is to craft the build tool.