Yes. Make a master account and name it allmysites.com. You then will have to setup a custom filter under the profiles admin tab to show the hostname domain so it shows up under content drilldown.
Code:
Filter Type : Custom filter > Advanced
Field A : Hostname Extract A : (.*)
Field B : Request URI Extract B : (.*)
Output To : Request URI Constructor : $A1$B1
Apply it to your new master account.
Code would look something like this for 2 analytics:
Code:
<script type="text/javascript">var _gaq=_gaq||[];_gaq.push(['_setAccount','UA-master']);_gaq.push(['_setDomainName','none']);_gaq.push(['_setAllowLinker',true]);_gaq.push(['_trackPageview']);_gaq.push(['_trackPageLoadTime']);_gaq.push(['b._setAccount','UA-singlesite']);_gaq.push(['b._setDomainName','none']);_gaq.push(['b._setAllowLinker',true]);_gaq.push(['b._trackPageview']);_gaq.push(['b._trackPageLoadTime']);(function(){var ga=document.createElement('script');ga.type='text/javascript';ga.async=true;ga.src=('https:'==document.location.protocol?'https://ssl':'http://www')+'.google-analytics.com/ga.js';var s=document.getElementsByTagName('script')[0];s.parentNode.insertBefore(ga,s);})();</script>
Jimmy