Flag protected content on a category/home page?

I've got the Membership plugin working, and going through the documentation I don't appear to see a use case I need.

Specifically, like WSJ.com where on the home page and topic pages protected content is indicated with a key icon. Does the Membership plugin allow me to programmatically identify content using the More shortcode so I can add an icon on list pages?

Basically I don't want to give readers whiplash where clicking on some links goes to full length unprotected stories while other links only give them a paragraph. Ideally, I'd like readers to have a visual cue as to what they'll get before they click a link.

Hopefully that makes sense? Thanks in advance for any help!