specific smart notifications with iPhone and 245M? Possible?

I have a friend who recently bought a 245M and has an iPhone. I have a 945 with an Android Phone.

She is trying to disable FB notifications on her watch - so I found the Smart Notifications tab on my app and showed her how I do this. However, the iPhone version of this connect app does not have this menu item.

Neither of us could make sense of this page https://www8.garmin.com/manuals/webhelp/forerunner245/EN-US/GUID-5A95D297-7177-4745-ADAF-AC4855E0B7FA.html (I'm not an iPhone expert, but she knows her way around this). I haven't found anything helpful via the google machine.

Is it possible to filter specific apps with the iPhone like I can easily do with Android? 

If so, could someone give us step-by-step instructions on how to do this?