Photo Gallery Forums

I would like an option where you can specify a different folder for all thumbnails. Instead of all the tn_-files mixing with the fullsize-photos it should instead recreate the folder structure and create the thumbnails in a different place:

Fullsize photos: /content
Thumbnails: /content_tn

or something like it. And preferrably it should be as easily configured and managed as the contentfolder option.

thanks for the suggestion