Change your author name displayed for a single blog

On this site I found some very useful info on how to make my other blog post with another author name rather than the name of my blogger profile. Just in case I'll copy it:

Change Post Author Display Name Without Changing Google Profile

The details:

1. From the blog Dashboard, go to Template -> Edit HTML-> Proceed -> put a check mark in front of the the "Expand Widget Templates" option. 

2. On your keyboard press the "Ctrl" and "F" keys at the same time to bring up the search box.

3. In the search-box, type in <data:post.author/> then search.  The first <data:post.author/> will be highlighted. Replace it with the author name you want to use.For example, I replace it with my author name BJ.

Once replaced, search for next, replace again, until there's no more <data:post.author/> come up in the search result.

Note: in the Blogger template, there are 4 or more <data:post.author/>, just replace all of them with the author name you want to use.

4. Save the template. You done !