Page created not on Admin. Define Page Status

NOTE: missed this one ...

There is not override for the extras directory ... that is the override so to speak ... so this:
/includes/languages/english/extra_definitions/MYTEMPLATE/about_us.php

belongs in:
/includes/languages/english/extra_definitions/about_us.php

I've just found the problem. To clone for example page 2 to page 5 you must:

Create/clone these as page_5
/includes/modules/pages/page_2/header_php.php
/includes/languages/english/page_2.php
/includes/templates/template_default/templates/tpl_page_2_default.php

Add/edit these to include page_5
/includes/modules/sideboxes/more_information.php
/includes/languages/english.php
/includes/filenames.php

Create define_page_5.php in both of these folders
/includes/languages/html_includes
/includes/languages/html_includes/your_template

This should net you a generic page_5 in the "More Information" sidebox
You can then begin using this in your overrides areas

THAN YOU HAVE TO ADD RECORD TO DATABESE TABLE CONFIGURATION (clone it from page 2).