OloZ

Show content of any selected page in a widget.
<ol>
<li>In the back office, drag and drop the widget on widget zone like you want.</li>
<li>Put a custom title, show or not the custom title.</li>
<li>Choose the page you want in the select box.</li>
<li>Show or not the page title, the page thumbnail, the page content, the page excerpt.</li>
<li>This widget run multiple instances, so you can put any page you want in different widget zone.</li>
</ol>
If you use it please rate it.
If you use it please don’t forget compatibility box.
<h3>Example of usage</h3>
<ul>
<li>useful for welcome message in your homepage</li>
<li>useful for about stuff in your homepage</li>
<li>useful for address information in your homepage</li>
<li>useful for a lot of things</li>
</ul>

PageWhereYouWant

Add custom title, show title, show thumbnail, show content or excerpt of any selected page in a widget ready area

水野史土

This plugin shows post/page/category/tag/comment/media/user IDs on admin’s edit post/page/category/tag/comment/media/user pages. You can see the ID when you visit an edit post/page/category/tag/comment/media/user page. 
Since this plugin hooks on ‘edit’ link, only users with priviledges can see IDs. For example, a user of author role can see post IDs, while a user of subscriber role cannot.
You can find a brief description in Japanese on a book <a href="https://php4wordpress.calculator.jp/" rel="nofollow ugc">Introduction to PHP for WordPress Users.</a> (written in Japanese.)

ShowID for Post/Page/Category/Tag/Comment

This plugin shows post/page/category/tag/comment/media/user IDs on admin's edit post/page/category/tag/comment/media/user pages.

PageWhereYouWant vs ShowID for Post/Page/Category/Tag/Comment