Manoj

For creating a copy of posts and pages while retaining all the styling, content, title, meta info and taxonomies.
<ol>
<li>
In Posts/Pages screen, you can click on ‘Copy As New Draft’ link below the post/page title: this will immediately create a copy and return to the page.
</li>
<li>
In Posts/Pages screen, you can click on ‘Edit As New Draft’ link below the post/page title: this will create a copy and redirect to edit the page.
</li>
<li>
In Edit Posts/Edit Pages screen, you can click on ‘Edit As New Draft’ link above ‘Publish’ button: this will create a copy and redirect to edit the page.
</li>
</ol>
Please Note: No any kind of settings needed.

AMS Post And Page Duplicator

Binsaifullah

Duplicate PP is a simple and light-weight plugin which allows you to duplicate any Post,Page and Any Custom Post Type Easily. The duplicated Post or Page or CPT acts as draft. You can either duplicate the post, page or any custom post type using dashboard at the backend or from the single post view at the frontend.
<h3>Features Include:</h3>
<ul>
<li>Duplicate the POST</li>
<li>Duplicate the PAGE</li>
<li>Duplicate Any Custom POST TYPE</li>
<li>Duplicate from Backend</li>
<li>Duplicate from Frontend (Single Post View)</li>
</ul>

Duplicate PP

Duplicate PP is a simple plugin which allows you to duplicate any POST,PAGE and Custom POST TYPE Easily.

AMS Post And Page Duplicator vs Duplicate PP