How to set specific IP address to VM

Question

My Goal is use specific IP set to my new VM. such as 10.10.10.100
I have made vnet and template.
if I make VM without Force IPv4 then some ip properly set to NIC inside VM
.
But When I make VM by instantiate from template, change value in Network -> Force IPv4 as “10.10.10.100”. the NIC has not set the Force IPv4 and set by VNET automatically issued.

When I check vm’s Configuration, the ETH0_CONTEXT_FORCE_IPV4 is empty.
Doew anybody know how to please kindly advice.

env

Opennebula version: 5.12
VNet Address Range is correct
One-Context has been installed inside VM