This is an easy trick to change the number of posts per page that are displayed in the Posts administration module of WordPress.
Once logged into the administration area of WordPress, go to Posts. You will find a tab called “Screen Options” in the top right of that screen. Click on that tab.
The “Screen Options” tab contains all the settings that you can change in that posts listing. You can hide/show columns in the list, and modify the number of posts per page. Click on “Apply” to save changes.
Once those changes are applied, the list of posts will change accordingly.
You may also want to see how to configure menu items so they open in a new browser tab.