How to get the `fb:explicitly_shared` permission on facebook
I have an app where the user can post his activity after a workout. In order for that to properly appear on the users timeline, I need the fb:explicitly_shared permission. But I just can't see where to get it!!! I've seen screenshots like 
but I just have no idea on where to find that dialog in the developer-dashboard on Facebook. I already have the publish_action permission and wrote about the fb:explicitly_shared in the comments when I requested it, but it's still not working and the FBSDKShareAPI complains about the missing permission.
Can anybody tell me where I can request that permission?!? In my iOS Code I currently request publish_actions. The explicitly shared can't be requested, cause then the FB-SDK crashes, telling that it's not possible to request it.
It’s not a “permission”, it is a capability.
And you find it in the settings of your OG action type.