The Post Cloner module allows you to duplicate and clone a post with a single click. It works with all post types and is able to clone the content together with its custom fields, tags, categories and taxonomies.
Note: Metadata that are stored in custom database tables won’t be cloned.
Activate Post Cloner Module
In the Admin Optimizer page, click to enable the Post Cloner module, under the Content Management section. Press Save Changes to save the changes.

Configure Post Cloner Module
Navigate to Admin Menu → Admin Optimizer → Post Cloning. Here, you can select which post types to have the cloning feature.

Next, configure the After cloning action. This will determine how it will behave after cloning the post. If you select “Open the cloned post for editing”, it will open the cloned post in the Post Editor for editing. If not, it will return to the same page.

Admin Optimizer Pro comes with additional option to configure the access for different user roles.

Click Save Changes to save the configuration.
Using Post Cloner Module
Navigate to Posts → All Posts. Under each post, you should see a new Clone link under the Post title.

Click on it to clone the post.