space has added an amazing feature, the Room system! The room system allows you to create your own region in space which you can then make into your own room, to use personally, or sell on the space store.
Room systems also have a Room Edit button. You can add furniture to your room, change the materials of the walls and floors, change the light colors and also change the design of the room itself.
The first step for getting a room template set up is to either build your own region, or import assets from the Unity Asset Store and place them in a scene in Unity.