Emulator Issues #8879
Allow only one Game Properties window to be open at a time
Sorry for posting really trivial issues lately, but this one is genuinely a problem for me and essentially everyone else who uses the Game Properties window a lot.
Very often, whenever I have a GP window open and I make an AR code, I absent-mindedly open another GP window to add the code. This means that I lose the code when I close the window, because the one that was last open didn't have the code.
Lastly, there aren't really any practical reasons why you would intentionally have more than one GP window open at once. If you try to open a second GP window for one game, just bring the existing one back into focus. If you try to open one for a different game to the one currently open, close it and then open the new one.