Items not belonging to an item set

In Omeka Classic, I can quickly see a count of the items that don’t belong to any collections. The count is a link so I can view and edit those items.

In Omeka S, I would like to see a list of items that don’t belong to any item sets. Looking at the advanced search, I can get all items in specific set(s), but I don’t see a query for the orphans.

Is this possible in S?