Option to have multiple group names when testing different pages

The group will always use the domain of the url, for example in the SpeedIndex measurement.

http://www.google.com
http://www.google.com/test1
http://www.google.com/test2/foo

Group value for all three will be www_gartner_com

I would like an option to separate the group name if testing multiple pages from the same domain and not want the metrics lumped in one domain. Above urls will now be named as:

www_gartner_com
www_gartner_com2
www_gartner_com3

or add the path and convert each / as _?

www_gartner_com
www_gartner_com_test1
www_gartner_com_test2_foo

Maybe this is already possible and I misread the configurations...

Start by checking how SpeedIndex derives the group from a URL and whether existing configuration already supports custom grouping. Compare the three example URLs and decide on the expected distinct group values or path-based naming rule. Done means pages from one domain no longer have their metrics lumped together when the option is enabled.