Edit message in notify mail content by using some macros

[phupn]

Hi everyone,
Actually, I want to add some information when a trigger alert to my email. Example: when I receive a warning mail from zabbix system about process load too high like this:
1. Processor load (xxxxx:system.cpu.load[,avg1]): 5.25
2. *UNKNOWN* (*UNKNOWN*:*UNKNOWN*): *UNKNOWN*
3. *UNKNOWN* (*UNKNOWN*:*UNKNOWN*): *UNKNOWN*
I want to view more information about CPU like xxxxx.system.cpu.util =? attached with this email instead of logging into zabbix to view details.
Any idea help me to configure to this situation? Thank you so much for your help.
My configuration of my email message and send by external script.
Trigger: {TRIGGER.NAME}
Trigger status: {TRIGGER.STATUS}
Trigger severity: {TRIGGER.SEVERITY}
Trigger URL: {TRIGGER.URL}

Item values:

1. {ITEM.NAME1} ({HOSTNAME1}:{TRIGGER.KEY1}): {ITEM.VALUE1}
2. {ITEM.NAME2} ({HOSTNAME2}:{TRIGGER.KEY2}): {ITEM.VALUE2}
3. {ITEM.NAME3} ({HOSTNAME3}:{TRIGGER.KEY3}): {ITEM.VALUE3}

[richlv]

try {{HOST.HOST}:system.cpu.util[...].last(0)}

of course, use correct item key parameters, as per items you have

[phupn]

Thank you for your help. I will try this.

[phupn]

I already edit the message like this:
.....
1. {ITEM.NAME1} ({HOSTNAME1}:{TRIGGER.KEY1}): {ITEM.VALUE1}
cpu.util:{{HOST.NAME1}:system.cpu.util[,system,avg1].last(0)}
2. {ITEM.NAME2} ({HOSTNAME2}:{TRIGGER.KEY2}): {ITEM.VALUE2}
......
The notify reply:
1. Processor load (xxxxxx:system.cpu.load[,avg1]): 5.03
cpu.util:{{HOST.NAME1}:system.cpu.util[,system,avg1].last(0)}
Can you help me more about the right expression or documentation about this?