In Blender version 3.1.1 I have a collection of parts of an object with a data structure something like this:
+-- Dandelion
+-- leaf.01
+-- leaf.02
+-- petals
+-- stem
My problem is I cannot mark the collection as an asset. One of the solutions that I have found is to instantiate the collection and marking it as asset (https://www.youtube.com/watch?v=YFX8Fzg5CYY); then I am allowed to pull it in other blender scenes. However, through this method no thumbnail is appearing on the asset browser. Which is a problem since I do recognize items by thumbnails rather than names.
I appreciate any help regarding this problem. Thanks in advance!