I will appreciate for your help. I am creating my material library, and trying to clean and rename all materials and nodegroups. How i can define from outliner (or any enother way) wich materials use this nodegroups
(update)
Thank you for your help. I'll try to be more specific. Just for example. I have big scene with 105 materials, Also I have unknown node group (x) which is used by 3 users. It means that 3 materials from all 105 use this node group (x) The question is, how i can easily find these 3 materials? Where this information is shown in outliner? Thank you