I've got another little issue with this excellent plugin. For some reason, if one people put a comment a discussion into a group, all members of the group receive an email notification, not only the owner of the discussion ! That's annoying people, I would like to fix this...
This plugin respects the same notification settings that is built into elgg. Even if you weren't using notifications-override, users would still be notified. For instance, you can go to https://community.elgg.org/notifications/group/ to edit how you are notified about groups on the community elgg site. Similarly, you would go to https://<yoursite>/notifications/group/ to edit your user notification settings.