rel=Nofollow in blog links

EasyBlog have option "Add nofollow tags in links"
But sometimes I need link displays without this tag.
I use modified code in /components/com_easyblog/views/entry/view.html.php

// @task: Add rel="nofollow" if necessary.

		if( $config->get( 'main_anchor_nofollow' ) && $blog->created_by != 2313 )

		{

			$blog->content 	= EasyBlogHelper::addNoFollow( $blog->content );

		}

where 2313 is user ID - and all links in all blogs froms this user have no nofollow tag.

Can you add new option in admin panel? something like this:




Then.

Is it real to use nofollow tag only for external links, not for internal links?
For example:

Add nofollow tags in external links - Yes/No
Add nofollow tags in internal links - Yes/No