Login and data link with facebook account

Hi, I am looking for following functions. I know your ultimate can do the 1st one well.

I am also enabling buddypress/bbpress/wooCommerce with an external plugin: WPSSO Pro right now.

1. Let users to Login (signup) all buddypress / bbpress / wocoCmmerce together.

2. combing the forums page with the Facebook group page:
Post WordPress comments back to Facebook
Copy Facebook comments to the WordPress database (for archiving, editing, replying, moderation, etc)

Please help me to solve the above 2 functions altogether, hence, I won't need to switch to other plugins, like WP-FB AutoConnect.