It took me a bit to figure it out. Only seems to work in the browser version.
I usually play on my phone, so I had to transfer my save file to do it.
But apparently, when inspecting the page, there's essentially a second tab that ends up being a sort of Java console if I understand it right. And it can take specialized commands.
Save editor is much much easier though, for most anything it can do.
Oh yeah now I remember. If you know the right inputs you can proc pretty much anything in the game, a la Fallout New Vegas or Skyrim.
The problem is they need to be dead fucking on or they won't work, and to know what you're doing you need to have at least some basic understanding of the code. It took me like half an hour just to figure out how to use the console commands to progress time forward, and even then I screwed it up half the time because I put something in wrong!
So unless you own a pair of programming socks, or are one of those psychopaths who use Linux (a common crossover though not mutually inclusive as most assume), don't even bother. It'll just make your brain hurt.