Add N × (how many rooms)
Screen: Rooms
What it is
The number box at the bottom of the Add rooms to <floor> box.
What to enter
How many rooms of the chosen kind to add, from 1 to 20. Set it before pressing the picture.
What it changes
In the app: That many new rooms appear in the app at the next Save & Deploy.
In the house: That many new rooms reach the hub at the next Save & Deploy.
If it goes wrong
A number above 20 is treated as 20; an empty box adds 1.