I need quick access to the Danish letters æ, ø, å while using the US keyboard-layout in OS X (I it slow to change keyboard layout all the time, my MBA has a Danish keyboard).
I want to use right-alt (option) as the compose key, so I can get "ø" by typing
o and similar.
I have consulted an earlier question but it is not clear if this gives me access to the Danish letters and I don't have a Linux installation to get configuration files from.
Is there a another/newer/easier way to do it with Karabiner/Seil etc.?