Writing special characters in the new interface
Fragment of a discussion from Translation UX feedback
I tried clicking on the keyboard symbol which appears when you edit, which goes to the ULS (Universal Language Selector). But that only has the International Phonetic Alphabet, which I don't know how to use and the non-Latin scripts on it.
It is the additional character set under the edit window (displayed by Purodha above) which I use all the time to type in letters with the 4 accents on them; â ä á and `. So I also would consider the problem solved if bug 46955 were actioned.