[Plugin: NextGEN Gallery] Gallery permalink structure

Hello,
for my blog I would like to use a custom permalink structure like this:
http://www.myblogname.com/gallery/12345/
The placeholder 12345 shall be a unique image id to display an image in single page view. Is there a way to include this in the plugin NextGEN Gallery? Until now the link structure looks like this: http://www.myblogname.com/gallery/nggallery/image/imagetitle/

Thanks for your help
Timo

http://ww.wp.xz.cn/extend/plugins/nextgen-gallery/