This should be obvious, but I'm not finding an easy answer in the documentation.
On the page for the Google Analytics plugin, I see this line:
NB: To track all your subdomains separately you'll need to configure analytics and add in an extra line of code to the tracking code as described here (very easy to do): http://www.google.com/support/googleanalytics/bin/answer.py?hl=en&answer=55524
Question 1: I assume I need to add this line of code to the /mu-plugins/google-analytics.php file, right?
Question 2: Does it go before line 132 (site tracking code) or line 139 (blog tracking code)?
Question 3: I went to Site Admin > Options and put in my UA code. I understand that for each blog, users will need to get their own UA code and paste it under Settings > Google Analytics. However, for my main blog, do I need to go into Settings > Google Analytics and paste the same UA code as I did for the entire site?
Question 4: is there a recommended plugin that works with this to display Google Analytics stats in the users' dashboard?