Hi,
It is possible to do with google maps plugin something like this:
http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/examples/advanced_example.html
I would like to order a few trips were grouped into a single hotspot. when you click on a hotspot (one of the tours), the approximation and show panoramas included in this tour (hotspots). When you click on the main hotspot scrolling thumbnails should be also grouped the same like hotspot.
Thanks for your the help and sorry for my english
Robert