[Plugin: NextGEN Gallery] limit number of thumbnails or

Hello and thanks for nice work on this.

What I try to do is link a gallery/album from a single image on a page. I need to display many images (lot screen shots) and 20+ thumbs will look bad.

Is it possible to limit/choose which thumb to have on the page or load the gallery-lightbox view on any image or textlink?

http://wordpress.org/extend/plugins/nextgen-gallery/