Special characters in general

I realise there will most likely be a number of similar posts regarding this, but it really would be extremely nice if you could use special characters - it would make it so much easier for users with an other native language than English.
Just today I was creating a custom workout and in my description I can’t use common Danish letters - it simply just leaves them out. To avoid this I usually write my descriptions in English, but to be honest, I would much rather have a fix for this issue.