It would be good to be able to label the items in the library. In the same collection, the items could be in different categories such as boring, interesting, cool and I would love to see them by their group on the same page. I could create another subcollection but then on the parent collection, I do not understand which item belongs to which subcollection. Is there a way to achieve this?

To me, colouring the row of an item is a straightforward way to handle this. What would you think for such a feature?