Language Menu
The languages are displayed automatically only if you have set up translations and additional sites.
Footer Menu
Editing the Center part of the menu can be done in the default WP menu editor. The menu needs to be nested, the parent item becomes the menu title and the nested child items become the items below the title.
Footer Call To Action
The far right column can be edited in the theme options
wp-admin/admin.php?page=amnesty_footer_options_page
