I'm using Zabbix for VMware Hypervisor monitoring. 

As you know, hypervisors are discoverable using vCenter's Template with the host prototype. 

There are some LLD macros, like "{#CLUSTER.NAME}", "{#HV.UUID}" that I'm using for creating macros: 

I would like to use these macros in Triggers, but I came across the problem that I can't use them as context for macros.

for example :

avg(/Template VM VMware Hypervisor/calc.vmware.hv.memory.usage.percent[{$URL},{HOST.HOST}],15m)>{$VMWARE_HOST_MEMORY_WARN:"{$VMWARE.CLUSTER.NAME}"}

So idea is that override the default trigger for a particular cluster. Because not all hypervisors are in production, some of them are in a test environment.