To add a new domain to your server, you need to do two things:
1. Add a domain to ISPmanager.
2. Add a domain to DNSmanager in your Client Area.
More details:
Log in to ISPmanager under the user account where the new working domain was added.
Enter the part (section) "WWW / WWW-domains"
Click "Add"
Fill out the form to add a new domain.
Specify the domain you want to add in the "Name" field.
The "Root directory" field is entering automatically. You can change the path to domain be working from another folder.
The "Administrator email" field is entering automatically.
Set the required PHP version and the PHP mode for the working of your site.
P.S. Your site may not support the latest version of PHP, so you don't need to install it if it is not required.
Click "OK"
Domain added to ISPmanager control panel
You need to add a domain to the DNS manager after adding it to ISPmanager. Log in to your Client Area "VPS Domain Management" part
Click "Add New Domain"
In an additional opened window specify the domain you want to add and click "Add"
Domain added!
The added domain directed to your server, it should be available when you access it.
If the domain hasn't been directed to the server yet, you need to specify our DNS in the domain settings:
ns1.vps-dns.info IP:116.203.53.153
ns2.vps-dns.info IP:136.243.158.28