@kravietz We should have more monuments for underappreciated letters. :)
Yes, someone also mentioned German umlauts in this context!
Fortunately, Polish spelling is so bloody complicated that nobody even approaches it without a proper Polish keyboard π All diacritics are however available as Alt combinations so Alt-O makes Γ so quite easy.
In Russian translit keyboard Ρ is placed at Shift-3 so replacing # which is not much of a loss.