Country letters through Fn key?

I am Danish and therefore need the letters å, æ, ø on the English Uconsole keyboard. I checked with xevand I’m lucky enough that fn+a, fn+e, fn+o are seemingly free. However, I have never messed with keymapping before, anyone with good recommendations?

Should i know the hex values of m letters, or how would I else define them? The keymapping is not recognized in xev, but I guess it’s just because it’s not made yet?

Thanks,

GregersDK

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X Keyboard Extension (XKB): This is the core system for handling keyboard layouts in X11 (the windowing system most Linux distributions use). It’s powerful but can be complex.
xmodmap (Older, Simpler): A simpler tool for basic key remapping. It’s easier to learn but less flexible than XKB. Good for quick fixes, but not ideal for a long-term, robust solution.
setxkbmap (XKB-based): A command-line tool for setting the keyboard layout. You can use it to load pre-defined layouts or modify existing ones.
GUI Tools: Some desktop environments (like KDE Plasma) have GUI tools for keyboard layout customization.

I’m writing in German and have set up the right Alt Key as dead Key. This should be possible with all desktop environments (I use KDE) and even the Console. Just search for “dead key”

Now I can press r_alt and then " followed by an a to get the Umlaut ä

Same goes for ö, ü and even ß. This should also work for Danish