Add the hyperlink to the group when you click under the Share Icon on the details page.
Its pretty strange that this functionality was removed. It still present in Portal 10.6. It seems an oversight but one of the fundamental easy ways to navigate seems to have been removed around the time the changes to the SHARING content occurred (say 4 months ago). Previously a user could click on the DETAIL page of all content and see under the DETAILS which groups the item was shared with. They could then click on this link to OPEN UP the GROUP it was shared with. (clicking the hyperlink will open the GROUP). T
With the change to sharing we now have the "icon" based, these do appear to be Clickable as a "Finger pointer" does appear when you hover over. Along with the tool tip. It does not however open up the GROUP as a hyperlink