No. As stated in the script creators FAQ, Slimbox was designed to display images only, to be simple and to have the smallest code.
Autoload has been modified to group all images in a WordPress post if the theme places posts inside a div with class="post". If the images are instead on a page they will all be grouped together. If you want individual group sets it is recommend you instead manually insert 'rel="lightbox-groupname"' inside your hyperlinks to specify your groups.
Please see this excerpt from the FAQ by the creator of Slimbox, Christophe Beyls
I only know English, but as of v.0.9.4 the plugin supports localization using PO and MO files, just like WordPress. A copy of the POT file to use in your translations can be found in the languages directory as wp-slimbox2.pot. If you're willing to provide a translation I'd be more than happy to include it. The NEXT, PREV, and Close buttons can be translated as well. If you've translated the plugin or would like to find out more please let me know by posting on our support forums.