Again, there is not a place in step #2 to update the author name. The preview in step #2 you provided is not reflected when going to write the article. My current updated username is "ThaDreadPirate" but my author name shows up as my previous username "Dr. Ten Bagger" when I go to write an article.  Here is the screenshot of when I go to write my article:

No you cannot.  Here is a screenshot of step #2. There is no place where you can update your author name.  It shows a preview of what my author name and picture will look like, at the bottom of the screenshot but instead of "ThaDreadPirate" it displays my previous username when I actually go to write my article. Try it yourself.  Change your username and then try to write an article: It will not have your username updated. Please advise on how I can fix this or provide a screenshot with an explanation of where you can update the author name.