Ooooooooh, ok, to be honest I did open it, but since it's the same input than most game engines console I assumed it was some kind of debug option that was left in the game that I was not supposed to use. But now that I think about it that's probably why it was included. Maybe just work on the wording of the input, cause calling it "grave accent" in a English game is a bit weird.
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I didn’t call it ‘grave accent’, it is the official name of the character ;) Grave Accent Character
I wrote the name of it, because the character is barely visible.