[ovirt-users] Cannot change notification settings for hosted engine in ovirt 4.0

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-co...), 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! - George Chlipala