Much better.
The first parameter os {{cmd|replaceword}} is a set (collection) keycode, i.e. you can define different sets of replacements and activate them with {{cmd|setreplacements}}.
[http://wiki.contextgarden.net/images/b/be/nolig-german-wordlist.tex Here’s] a list of German ligature exceptions, derived from [https://www.ctan.org/pkg/selnolig selnolig] LaTeX package. Just {{cmd|input}} it in your environment.
In current versions (after 2017-09-28) you may also define several exceptions at once, like