I have just installed the base system and changed the locale - pressing Shift + 6 two times should give the "¨" symbol instead of "?" - pressing "`" two times should give "´" instead of "?" - pressing "~" + letters don't make "ã, õ", only "ñ" works - pressing Insert just gives me the "~" symbol; (even Shift + Numpad0) - pressing Alt GR + c gives me "?" instead of "₢" - pressing "-" and "+" on the numpad doesn't work And if isn't asking too much why the layout isn't just "Brazilian ABNT" and "Brazilian ABNT2"?
^Triage: reclassify. We generally use 'standards' for things like API compliance.