[bollwerk]

Unless I'm doing something wrong, I can't find any window that appears when I want to track Achievement progress. For example, in the default UI, if I want to track an exploration achievement, I will see a list of the unexplored parts of a zone on the right side of the screen. I can't seem to find an equivalent in NUI unless I'm doing something wrong, or have another addon that is interfering.

So my suggestion is to add an Achievement tracking window.