Can someone please help me figure out how to have watermarks on only certain photo galleries?  I thought I could go into the watermark tab before loading the ones I didn't watermarked and deactivate it prior to upload.  However, when I reactivated the watermark for the next gallery, the watermark reappeared on ALL galleries.   Please advice.
Many thanks!

Piwigo version: 2.4.5
PHP version:
MySQL version:
Piwigo URL: http://stocktonphoto.com/photostore/admin.php