(Zabbix 1.1beta2)
When you create a graph for a template linked with hosts, it create graphs for all hosts.
But if you want to add a line to a graph template, the line is not added to all hosts, and you can't update all hosts from a graph template.
For a template, you can chose actions 'add, update, delete'.
Although 'delete' is not chosen for my templates links, items or graphs are deleted when i delete an item template or a graph template with all data associated with.
When you create a graph for a template linked with hosts, it create graphs for all hosts.
But if you want to add a line to a graph template, the line is not added to all hosts, and you can't update all hosts from a graph template.
For a template, you can chose actions 'add, update, delete'.
Although 'delete' is not chosen for my templates links, items or graphs are deleted when i delete an item template or a graph template with all data associated with.