This qualifies as a bug report and feature request. I cloned a VM I had but want it to run on a local network rather than a global network. When the cloning a VM I am presented with an option to enter the IP and on what eth0/1 to use. I entered a local IP not thinking of the bridge. The machine cloned and came up in the webmin status etc. After seeing i could not SSH into it, I realized what I had missed - the bridge. I then used the System Configuration > Network Interfaces to try and change the bridge from br0 (global) to br1 (local). It just sits there spinning without ever completing. There should be an option on there for bridge as well when there are multiple available when cloning a VM. In order to fix it, I have to manually go into the terminal and edit the .cfg file and recreate via xm create xxx.cfg. It's not a big deal but seems as though it would be easily fixed.
So, for the feature recap - the bridge should be able to set on the clone a VM page. The bug recap - trying to change the bridge on this freshly cloned VM never completes (it may but I waited 5 minutes with no result and figured it times out)