To edit your blog settings, click on 'Settings' and the setting window will open up.
Here you can:
Select the Layout you prefer for your articles on your main Blog page
Select the Navigation method to be displayed on the main Blog page
Add or remove social share buttons
Enable Disqus comments - a 3rd part comment application (this is not needed as you already have a standard comments section built in)
Send yourself or your team notifications each time you receive a new comment.