Hey jandrabek,
The Facebook API doesn’t include whether or not a post is pinned, however you could achieve the same result by manually moving a post to the top of your feed using the following JavaScript snippet:
$(‘#cff .cff-item’).first().before( $(‘#cff_182162001806727_1043082325714686‘).css({‘box-shadow’:’0 0 10px 0 rgba(0,0,0,0.2)’}) );
You’d need to find the post ID of the post you want to pin by right clicking on it and inspecting the element. You should see an ID on the cff-item element which starts with “cff_”. Replace the ID in bold in the snippet above with that ID, and then add the code to the plugin’s Custom JavaScript section (Customize > Misc > Custom JavaScript).
Let me know whether that works for you, and I hope you’re having a good day!
John