I use US_Intl keyboard for Swedish and Portuguese and can type all of this without the need of special char keys: ä ö å - á à â ã. Just a mix of Opt+(u/a/e/i/n/

I use US_Intl keyboard for Swedish and Portuguese and can type all of this without the need of special char keys: ä ö å - á à â ã. Just a mix of Opt+(u/a/e/i/n/`) and the next character I want with the diacritic. Edit: and ß is just a Opt+s. It becomes quite logical after you get the hang of it.