How to configure python script in Proxmox ve server for additional plugins?

Hi community out there,
I am very new to icinga and monitoring things.
Icinga2 Agent is running on the Proxmox server and see by default services in the Icinga Web 2 interface. services are like Host disk, Ping, SSH, Host -Users only.

I would like to see some more services, for this i found python script (check_pve.py) and downloaded it.
https://exchange.icinga.com/nicolaiB/Check%20PVE

files downloaded:
command.conf
service.conf
check_pve.py
grafan

Before you ask a question, you can check the troubleshooting documentation first, maybe you can find an answer here.

Where i can put this file check_pve.py i found following locations:
/usr/lib/nagios/Plugins
/etc/icinga2/conf.d/commands.conf

##########################################################
/* Command objects */

/* Notification Commands
*

  • Please check the documentation for all required and
  • optional parameters.
    */

object NotificationCommand “mail-host-notification” {
command = [ ConfigDir + “/scripts/mail-host-notification.sh” ]

arguments += {
“-4” = “$notification_address$”
“-6” = “$notification_address6$”
“-b” = “$notification_author$”
“-c” = “$notification_comment$”
“-d” = {
required = true
value = “$notification_date$”
###########################################################################
if i locate python script to here, what about mail-host-notification.sh? ConfigDir + “/scripts/mail-host-notification.sh” ]

icinga2 verison: r2.10.3-1
icinga Web 2 Version: 2.8.2