How to give privileges to user equivalent to ubuntu user

I have an Ubuntu server (CloudPanel installed), I can add new sites with user ubuntu by CLI using something like

clpctl site:add:php --domainName=www.domain.com --phpVersion=8.1 --vhostTemplate='Generic' --siteUser=john --siteUserPassword='!secretPassword!'

But, this command works only ubuntu user, I need to give user "site1" privileges to use this command too. I need add new sites with user "site1".

How to give this privileges?

I have root, SSH and sFTP access.