For General Settings setup go to Settings in the left sidebar:
Select and click on “Blog”:
Blog author
You can set the Blog Author’s name. It will appear in the metadata in the published blog posts.This field is set as the default for all posts.
Posts URL formatGo to the “Posts URL Format”:
Choose the desired URL format from the drop list:
Choose the desired URL format from the drop list:
Once chosen the URL format appears under the drop list: