You can change a room type (for example, to Bathroom, Wardrobe, or Guest Room) from Room Settings in the 2D editor.
Steps
Open your project and switch to 2D.
Click inside the room you want to update so it becomes selected (you’ll see a green outline around it).
On the right side, open Room Settings.
Next to Type of room, open the dropdown.
Select the room type you want (e.g., Bathroom, Wardrobe, Child Room, Guest Room, etc.).