Hi Ary,
If you were originally asking about the Dialogue System for Unity, it has Super Text Mesh integration. You can find the integration package in the Dialogue System's Third Party Support folder. If you're dead set on using articy:draft, consider the Dialogue System because it imports articy:draft XML instead of using their Unity plugin. Articy's plugin is very slow in the editor. Otherwise, if you're no longer interested in using articy:draft, certainly check out Kai's new dialogue asset, too.