How to activate the function "the author would link to your own Facebook profile"

Hello guys.

Is there something i need to do in facebook (like create a new app, different that the one created for access and register) to allowme to use the function of link to the facebook profile of the blogger, available on the blogger profile edition?

The one that says:

Enter the url for your Facebook profile so that when the blog post is shared on Facebook, the author would link to your own Facebook profile.

This pre setted or i need to create another app in Facebook.

Thanks for your answer and take your time.

Best regards.