Follow this guide to preview a blog post before publishing it.
Step 1 - Save your post
In the Post Editor, click Save save the post as a draft. The Post Editor will close.
Step 2 - Preview
Click the post title in the Blog panel. A preview of the post will display. To view the full screen version, click the arrow in the top-left corner.
Click the arrow again to return to the Blog panel. You can then click any other draft or published post in the panel to preview.