Comments+ its possible to avoid forcing user to authorize FB log in when its already logged on FB?

Hey whats up, i see that the default code to post comments from Facebook ( it doesn’t force users to authorize FB when they are already logged in… I attach a picture to show you what i mean.

Could i make the same thing? ( i mean, avoid the user to authorize fb so making easier to they to leave a comment)

Cheers and thanks very much.