Show items not belonging to any subcollection
Let's say I have many items in a collection. This collection also has many subcollections. Now, I want to know/see which items in this collection do not belong to any subcollection. How to do that?
Can their be a hack to achieve this or could I make a feature request for this?
* a recursive collection means that by viewing the parent collection you also see items that are within the subcollection.
Items can be in the parent collection *and* child collections simultaneously, though, so make sure that you move items to the child collection instead of just adding them. (Hold Command while dragging on macOS, or Shift [I believe] on other platforms).