Hi,
for the variables 'Server' and 'ServerActive' you describe it like "List of comma delimited IP addresses, optionally in CIDR notation, or hostnames of Zabbix servers." and "List of comma delimited IP:port (or hostname:port) pairs of Zabbix servers for active checks.". But you forgot here the proxies, so better would be "[...]of Zabbix servers and proxies"