Hi there!
I'd like to thank marc for the awesome job! I've been using it for ages!
I also would like the report a bug: I used the editor to clean my main room, that is, filled it with the "-" item, both squares.
It worked but when I went to put new furniture into it, it acts like there's still some furniture in the corner where I had a stack of books and amethyst on top of a sloppy table. My mayor can walk like there's nothing there but the moment I try to push furniture there, it won't work.
I'm using an old 3DSXL with 11.2.0-35U firmware and HomeBrew's save manager to import and export my saves. Thanks!