Hi,
If you use the “add new folder” option, and you set the folder metadata so you can retrieve the folders in the vLookup query.
You can then use the “Show open folder in new window button” option in the vLookup configuration to open the folder in a new window. From her you can drag and drop documents into this folder, and have them show in the vLookup column.
You find some more here
Let me know how this works out.
Alexander