My groups are used to share private photo's. For private groups it's very important that the photo's are only visible in the group. Not outside the group. My members would be very upset if their private photo's are visible to others. Please do not share XFMG with multiple groups. Its important that each album belongs to only one group. Related suggestion (but not the same): http://nobita.me/threads/xenforo-media-gallery-privacy-should-reflect-group-privacy.788/ Please add this. its really important to have.