I need to follow up the same parameter for different servers on the same graph. It is usefull to follow-up a server farm and putting in light a different but not yet abnormal behaviour on one server. It may be, for example:

• CPU statistics (Idle or User)
• Incoming and outgouing bandwidth usage (may put in light a problem on a load balancer explaining an abnormal load on a server)
• Outgoing bitraten, to follow up video servers behaviour.

The graph has to be not stacked.

I've not found this possibility in Zabbix version I use (2.0.0).