Google Analytics Common Counter

several sites - one counter

[AntonM]

Hi, how can I use one counter of Google analytics on my several sites?
I have 4 blogs and I have G.A. on each of them. But I want also see "common" traffic on all my blogs. (blogs are on .blogspot.com - maybe I need to use some subdomain features of G.A.?)
Thank You in advance.

[peterdaly]

This isn't the place to ask for enhancements, but I'd like to see an "all sites" type of report, or selected sites.

It's a PITA to check stats for more than one site.