Gallery/Slider lightbox enhancements

When the Gallery/Slider module is in Slider mode, I would like to be able to click on an image, have it be enlarged in a lightbox (the module already does this), but then have navigation options WHILE STILL IN LIGHTBOX MODE. For instance:

• a strip of thumbnails at the bottom to pick the next image

• navigation arrows for next/prev image

• start a “slideshow” mode