There is a thread on this subject, but there is no solution or action given.
I understand that ticking the box: Show Virtual Thought for Folders means that when you drag a folder into the Plex, PB creates a virtual thought and leaves the folder and its files were they are: outside the Brain.
I expect that this setting is not linked to the setting about moving dragged files into the brain.
Whatever I do, dragging a folder into the Brain moves the folder and its content into it. Unlinking it, deletes the folder and files, as is stated in the other thread.
Do I get this wrong? What should I do to make PB moving individual dragged files into the brain, and leaving dragged folders were the are?