Aaron Butacov

Adds a [post_thumbnail] shortcode for use with wordpress post thumbnails. Size can also be set using [post_thumbnail size=”XXXX”]. (You can call the function directly in your theme with <code><?php post_thumbnail('size=thumbnail');?></code>.)
Just insert the shortcode into any post’s content and when it will be replaced with the featured image.
This works only with the featured images introduced in WordPress 2.9.
For more information head to the full information page for <a href="http://aahacreative.com/our-projects/wordpress-post-featured-image-shortcode/" rel="nofollow ugc">WordPress Post Thumbnail Shortcode</a>.

Insert Featured Image Shortcode

Adds a shortcode to insert the post's featured image into the post's content.

jim912

You can customize the editing page by templates like themes.

Editor Templates

You can customize the editing page by templates like themes.

Insert Featured Image Shortcode vs Editor Templates