how to monitor vpn traffic via SNMP on PRTG

hi all,

so i have downloaded the MIB template for prtg here -

https://gitlab.com/PRTG/Device-Templates/sophos

and as you can see below, its worked

https://i.postimg.cc/rw41Tbxc/prtg.png

i can see ethernet ports for wan, all my vlans etc

but now i want to monitor all my vpn users as were using openvpn on the sophos utm

is there anyway to monitor vpn activity?

thanks,

rob