This sounds like a tileset thing, you could always just use or make a different one.
In the data everything is just a symbol and has no rotation, ASCII mode most closely represents this.
Adding in support for object rotation and multiple tiles based on that rotation and additionally adding those tiles to tilesets would be a lot of work for a purely aesthetic function.
This is a neat idea and somebody might implement it eventually, but I don’t see it happening soon.
CDDA is an open source project however, so if you want this done in a timely manner you can always do it yourself.