Enabling keyboard keys that are language-centric?

[WakahisaDManami]

Hey, guys.
I am a very proud Icelander and I want my sims to have Icelandic names. Thing is, I can't seem to make the keyboard keys necessary available on The Sims 2. They work in all other applications, The Sims 3 included.
Back when I had a PC, I managed to do this, so I know it's possible in The Sims 2. I don't remember how I did it, and even if I did I doubt it'd be of much use.
I'm trying to enable keyboard keys like ´, þ, æ and ð (þ is pure Icelandic, æ is Scandinavian and ð is used in Iceland and Faeroe Islands, though the latter do not pronounce it like we do).
Not being able to enable ´ doesn't just make Icelandic names impossible to use, many French and Spanish names (for example) also use it, and I like French names, they're so pretty!
I have tried changing my Macbook's settings to pure Icelandic keyboard, but it doesn't work in The Sims 2, and it is impossible (at least for me) to go down to desktop from inside the game itself.
Do you have any advice for me?

Thanks in advance.
Yours always,
Mai

[whiterider]

Which language is your game set to use?

[WakahisaDManami]

Which language is your game set to use?

I'm sorry, I don't understand the question T_T

[whiterider]

Is the text - object descriptions, menus etc. - in TS2 in English, or in Icelandic?

You can change the language that the game uses when you install it - I don't know if Icelandic is an option. :) But that could well impact which special characters you're allowed to use in names and so on.

[WakahisaDManami]

Is the text - object descriptions, menus etc. - in TS2 in English, or in Icelandic?

You can change the language that the game uses when you install it - I don't know if Icelandic is an option. :) But that could well impact which special characters you're allowed to use in names and so on.

It's all in English, Icelandic is not an option. I could choose Danish, Swedish or Norwegian, but I don't have any knowledge of those but Danish (and even if I've been learning it for five years now my understanding is very limited).