How to tag specific user for Facebook posts in Jarvee?

Hi there

I'm relatively new to Jarvee, and am wondering how to tag specific users in Facebook campaigns.

I've noticed this is possible for Twitter and Instagram, but not Facebook. I've also tried looking online, but not to no avail.

For example, if I had a friend name John Smith and I wanted to post,
"@johnsmith and his friend are the riverdale festival!" But have it link to John Smith's account.

Is this possible? If so, how do I do it?

Thanks