I cannot seem to find any information on how to change the notification settings, in particular the email adresses to which to send notifications and the from address for the notifications.  I have tried adding a file on the engine itself in /etc/ovirt-engine/notifier/notifier.conf.d/ and setting MAIL_FROM.  I then restarted the ovirt-engine service, but notices are still using the old configuration.  I even tried restarting the VM, but that did not have any effect.  I have also tried editing /var/lib/ovirt-hosted-engine-ha/broker.conf however when I restart the ovirt-ha-broker service, the file is overwritten.  

I have found documentation about the shared configuration storage (http://www.ovirt.org/develop/release-management/features/hosted-engine-configuration-on-shared-storage/), however it is not clear to me where I would edit existing data in the shared storage.  Do I just untar the files, edit, then "retar" to the shared storage?  Do I need to set maintenance mode before editing? Should I shutdown the engine?  After I edit the files, do I just restart the ovirt-ha-broker service or do I need to do something else?  

Any help in this matter would be greatly appreciated.

Thanks!