Track users hopping from one domain to another?

Is it possible to track a user hopping from one of my domains to another (if they both have clicky installed). If so, how?

If you are tracking them as a single site within Clicky, it will do that automatically. Otherwise, no.

How can you track them as a single site within clicky?

Anything more special to do other than post the same tracking code on both sites?

Ok I think I've got it, I need to add the second domain as a mirror. I've added it will wait to see if it starts collecting data now.