L0ftZee

I've set up a Vodia PBX to get familiar with it. When providing trunks for tenants (or domains) that I've set up does the system expect the trunk to be created at the Administrator level then made available to the domain, or does each domain have to register it's own trunks? I'm asking because I don't see an option to create trunks at the admin level but it is there for the individual domains.