dainius.kaupaitis

When navigating on pages widget shows links to child pages. If there are no child pages – widget shows „brother“ pages. 
Link of currently viewed page can be styled through CSS. Widget shows nothing if user is browsing Posts (not Pages). 
Admin can configure:
<ul>
<li>widget title</li>
<li>which pages must be excluded</li>
</ul>
Widget can be localized.

DKA Child pages widget

Menkii

The administrator is able to select a menu(from menu editor) in post/page editor. The navigation menu will be outputed with help from page_navigation_menu() function.

Page navigation menu

The administrator is able to select a menu(from menu editor) in post/page editor. The navigation menu will be outputed with help from page_navigation_ …

DKA Child pages widget vs Page navigation menu