Mara Noia

This plugin adds a “create new sibling” and a “create new child” button on the page edit page. 
This way you can easily create a new sibling or child directly from the active page, without having to choose the parent.
Further more you get a list of siblings of the current page, to make it fast to switch between editing siblings.

Mara Noia Extended Page Actions

When administrating your pages in WordPress this plugin can speed up productivity.

Jose Mortellaro

Top Bar Links allows you to to add custom links to your admin top bar.
You will be able to build your custom admin top bar to collect the important links for your project directly in your WordPress back-end.

Works well! Great, easy, fast and useful plugin

Top Bar Links allows you to add custom links to your admin top bar.

Mara Noia Extended Page Actions vs Top Bar Links, add custom links to the admin top bar