Facebook Autoposting to Facebook page

Hi,

I'm configuring auto posting to social media pages.
I've enabled "Allow Authors To Use Their Facebook Account".
In Edit Profile from front end, user can see FB/Twitter integration settings.

Is it possible to allow auto post to Facebook page of the user, instead of personal account.
From backend settings in Facebook integration, FB pages are not being displayed from my account.
Similarly is it possible to post on LinkedIn company pages.

Thanks
Prakash.