Adding items in subcollections to parent collection
I am aware that we can set extensions.zotero.recursiveCollections to true, but this does not affect where items actually are. What I'd like to do is actually adding the items in each subcollection to the parent collection (sort of drag-and-drop). I tried, but in some cases, when I click on "Add to collection", the parent collection is not selectable.
Upgrade Storage
extensions.zotero.recursiveCollectionsis now accessible directly at the bottom of theViewmenu:Show Items from Subcollections. For me, when the parent collection is not selectable, it means that the item is already in the parent collection. You need to disable the optionShow Items from Subcollectionsto check what is actually in the parent collection.Show Items from Subcollectionswas on as a default for all new users, perhaps putting it on even for all existing users, many of whom are likely unaware of this option, but still would like to use it (just never took the time to google it, or didn't come up with the words to google it).