I'm using Zabbix 2.0.0. I have a Zabbix Admin user who is in a user group that has read-only access to a host group. He doesn't seem to be able to add graphs from the hosts in that host group to his screen. Is this expected behavior or a bug? Or, do I have something misconfigured such that this Zabbix Admin user cannot add a graph to his screen from a host he has read only access to?