I'm not sure exactly what you mean, but I don't think what you want to do is something we support. Right now, to push your content to Facebook, you need to either use the share button or the social toolbar's "Create Post" button. For more information on creating posts to push to your Facebook Page or Group, please see our
Channels configuration guide
which explains the process.
If you're looking for a way to simply include a special tag in the content which would make JFBConnect auto-post it for you, that's not something JFBConnect can do. If you're looking for some other functionality, please explain more and I'll help however I can.
Thanks,
Alex