How to add or edit a blog author
Login to CMS > In the tree menu, go to Blog > Expand Blog
Click on the 'Authors' folder.
On the right side, you will see a grid of your authors. Click 'Create Blog Author' to add a new one.
Enter a name for your Blog Author, a short biography and even some social page links. Save and Publish. You will now be able to assign this author to blog posts.