media_upload_{$tab}
Action Hook: Fires inside limited and specific upload-tab views in the legacy (pre-3.5.0) media popup.
Source: wp-admin/media-upload.php:117
submitpage_box
Action Hook: Fires before meta boxes with ‘side’ context are output for the ‘page’ post type.
Source: wp-admin/edit-form-advanced.php:721
submitpost_box
Action Hook: Fires before meta boxes with ‘side’ context are output for all post types other than ‘page’.
Source: wp-admin/edit-form-advanced.php:732
in_admin_footer
Action Hook: Fires after the opening tag for the admin footer.
Source: wp-admin/admin-footer.php:31