What would you call a group within an organization that contained UX responsibilities as well as training and documentation? Marketing and product groups already exist outside of this entity... trying to stay away from those disciples in the title.
This could be considered as falling into the realm of Customer Experience.
CX is not limited to these activities of course.
I see no harm in bringing UX and CX together, while training and documentation are methods of increasing customer engagement and improving the customer experience.
I also don't think a CX group needs to exist only in large orgs, although that is often the perception!
Ref: Customer Experience on wikipedia
I lead a team of one doing exactly this, and my title is ... User experience!
My vision is the following: to grow the real UX component so that our products and services require as little documentation and training as possible.
Note: this wasn't the title I chose but how it was created. Some organizations have less flexibility in how titles are created. The title is not the role, in the same way as the map is not the territory.