Hey Bloxburg Team!
I have an idea for something to add to build mode, similar to how you can do roofs, and floors to fill an entire room. I think it would be easier to add an option to do that for wall trims! Where you can just click on the room, and it will apply it to all walls. If its possible you can do it for the outside, that may be more complicated but please think about my first idea!
With lots of care
Emma!