You are currently working on UAT 

Under Community Review

Make source conref recognizable in preview and editor

Conreffed elements in the content are easy to recognize. On the one hand, because such objects have a different color and on the other hand because of the conref attribute that contains a value.

Unfortunately, it is not possible to see if the content is being referenced. By this, I mean that content does not show or that it is being used as conref. This is a handicap in the use of conref.