Hi Raymond,
Thanks for your reply.
Yes, I understand that currently it's not possible.
Is it possible for you to customize then?
P.S.
In our case, we don't want all authors' posts to be published on admin's specified Facebook Page.
Instead, we want to offer them options to choose from posting to their own Facebook Page or personal profile.
Currently, when frontend authors configure their Facebook autoposting, they are asked if they want to allow to publish as Pages although they are actually not allowed to. (Screenshot attached.) I think this is confusing or misleading...
I know I need approval from facebook for "manage_pages" and "publish_pages" permission.
Facebook team said that I need to submit the app for review again once we enabled the feature for public use.
I really hope you understand our needs.