It should be possible to include photos posted to private Facebook groups on a Portal.

Use Case: We have a private group where we post pictures of our son. Our relatives are in this group so they can see pictures posted to the group on Facebook without us polluting our friend's feed with hundreds of pictures. Unfortunately, the pictures of him do not appear on the Portal devices for us or our relatives.

Having this feature alone would increase the value of the Portal to our family and I imagine other families in our situation too.