Before you can choose where your Read More tag will go, make sure that the Show summaries in listing page option is enabled. The setting can be found by navigating to Content > Content Settings > Blog > General.
- Next, navigate to Content > Blog.
- Click Edit next to the post that you'd like to edit or click Create new blog post.
- In the editor, place your cursor in the editor where you would like the Read More tag to appear.
- Click Insert and select Read More Separator. Doing so will add the Read More tag where you've placed your cursor.
Alternatively, click on the icon to the far right of the rich text toolbar.