Add image to group

I really don't spend much time configuring my una install. But I have just started and discovered that there isn't a button to add a main image to a group when creating the group. Is this possible? I'm also not even sure how to get help. There doesn't seem to be a forum to ask for help. Any help appreciated thanks.

ADDITION: I managed to get the cover Image showing. I uploaded a group cover image. It didn't show on front end. Even after clearing the cache. Then it also doesn't show when I edit the group. I cant change the image, that's not showing?