2017-09-22, 19:43
I'm not really sure. Path substitution of thumbnails isn't something I would recommend, but as these bookmarks are not true thumbnails (in the sense of being cached with references in Textures13.db etc.) then maybe it will be OK to use a path sub but just for the Bookmarks folder. If you relocate the Bookmarks folder outside of the Thumbnails folder then I don't think the script will try to delete it.