Floor Pref

Here you can edit the floor that will be shown in the default scene and you can also change the floor of the Special Item.

Create and assign the two floors to an object and save it as a prefab, it does not matter if they are active or deactivated in the hierarchy, the system is responsible for activating or deactivating them when necessary.

Here's an example of what the entire floor measures, if you want to design a single object. You can also assign decoration to the sides at once, and not add buildings in the pattern system. The difference is that it will always be the same in the scene, but you can create multiple scenes, it is an easy option.