You can create a subdomain by setting up either an A record or a CNAME
for the desired subdomain.
Here is an example of creating a subdomain using an A record:
Name: mysubdomain
TTL: 300
Target: XXX.XXX.XX.XX
To set your DNS settings go to:
Domains > My Domains
Then select the 'Manage Domain' or click on the selection of the domain name you want to change the DNS settings for
To set up your DNS records, please refer to:
https://nameit.pro/knowledgebase.php?action=displayarticle&id=4
Please allow a couple of hours before your changes are effected.
Note that additional setup may be required on your server or in your hosts'
dashboard/control panel before you can make full use of your
domain.