Efrosoula on "[Plugin: WordPress SEO by Yoast] noindex, nofollow for specific categories"

WP SEO ver. 1.4.7
Trying to set noindex, nofollow for specific categories of my posts, from categories menu.
Previous versions had options for both noindex and nofollow - dont know if it worked.
Current version has only noindex and most important IT DOES NOT work.
Does not change a thing in seo section of those posts.
Am I missing something?

http://wordpress.org/extend/plugins/wordpress-seo/