It is possible to show a sidebar in the lightbox (>=2.12n).
Also other object, like streetview, directions and ..., around the google map can be shown in the lightbox. The map will only be resized to the full lightbox when no other objects need to be shown in the lightbox.

{mosmap kml='http://tech.reumer.net/images/florida.kml'|kmlrenderer='geoxml'|kmlsidebar='left'|kmlsbwidth='200'|lightbox='1'|width='500'}