JadeHazel ConstantineI have resizing the roof working in game mode too. I play on PC. I always set the roofs somehow and then take the flipper tool, select "change style". A window opens where you can change the roof type or roof pitch, and below there is an option to change the size. Then I just expand the roofs as I need, raise or lower them, and that's it, I have the roof I wanted. It's a bit difficult only at first and you have to get used to it, but then it's easy.