Feature request title:
Allow editing rooms
Once you have a room built, say a shop, if you want to expand it, it should be possible to do it without having to delete the room first. Typical case is that you just need a few extra spaces to get to that juicy contract…
If for some reason the rooms “must” be rectangular, you could drag the edges to ensure they remain rectangular.
Why it should be implemented:
It would be more intuitive and less tedious.