Suppress SNMP traps from specific pools

I am basically trying to suppress traps when a pool name contains DIID, FIID, or PID, this could applear anywhere in the pool name.

I have followed  the principals set out in https://support.f5.com/csp/article/K53142338

However the config below in /config/user_alert.conf does not appear to work, I suspect it's because I am not specifying the regex correctly, any help would be appreciated.

alert BIGIP_MCPD_MCPDERR_POOL_MEMBER_MON_STATUS "(FIID|DIID|PID)" {
# snmptrap OID=".1.3.6.1.4.1.3375.2.4.0.10"
}

Julian