Apple Push Notification (APN) using Binary version of unreal?

i am trying to add one signal in my project.

and it requires me to enable background mode of “remote notification” as you can see in the scrresnshot i have provided.
But whenever i try to enable it in Binary version of ue4 it remains graied out and cannot be enabled .

as shown in scrrensnhot and says me that “This requires GitHub source”.

can anybody confirm me if it can integrate Apple push notification using Binary version of unreal or not?