Force picture thumbnail generation


I read several articles about this subject, but none was really THE solution.

When I browse the first time through a folder containing pictures, thumbnails are generated. So far ... nothing new. To avoid thumbnail generation at folder showup time, I would like to have thumbnails generated either manually, or via cron (which checks for non-thumbnailed pictures and generates these).

How can I force manual thumbnail generation without accessing every folder manually.


Not possible yet ->

Too bad ... many thanks !!!