Hello, I'd like to remove one product category from google indexing. I've read posts here about how to do so via the robots.txt file. However, according to Google using robots.txt file is not the way to go. (https://developers.google.com/search...block-indexing). Bottom line, Goog, and others have to crawl a page to see a meta tag to honor that it not be indexed.

Under category meta, there are two tags available: keywords and description. I would like to add a third meta tag - robots. And in that tag, I would put noindex, follow. Using developer toolkit, I found two files where " Categories Meta Tags Definitions" are. I've thought to add lines to them for robot meta as shown below, simply following the pattern of the existing meta tags fields. However upon refreshing my category view, the Robots meta tag doesn't show up. So I'm apparently missing something else I need to create a Robots meta tag for categories. Any suggestions on how I could accomplish this?

/public_html/<admindir>/includes/languages/english/categories.php

added the line:

define('TEXT_EDIT_CATEGORIES_META_TAGS_ROBOTS', 'Robots:');

added the line:

/public_html/<admindir/includes/languages/english/lang.categories.php

'TEXT_EDIT_CATEGORIES_META_TAGS_ROBOTS' => 'Robots:',

Thanks!