Facebook Registration Plugin - How to set Advanced Permissions? Offline Access etc?

I'm using the FB Registration plugin: https://developers.facebook.com/docs/plugins/regist开发者_开发问答ration/advanced/

What I can't figure out is how to you set adv permissions for access like offline permission, post to the wall etc?

Thanks

You can't, at least, not yet. The registration plugin doesn't have any options for permission requests- which unfortunately makes it totally useless for me, and I'm sure many other people.