publishing articles to FB via Ultimate FB Plugin

I’m trying to publish an article to FB via the Ultimate FB plugin. It appears to be set up correctly as I see the Facebook Publishing option in my post within WP, however, it’s not giving me any option to include any text when I share my post. I don’t want to simply share a link, I need to accompany the link with some text explaining what it is, like “check our our newest article on so-and-so”. Is that not possible? Or am I missing something? thanks!