To create new domain in Plesk control panel, follow the steps given below.
Step 1: Login to Plesk panel.
Step 2: Under Websites & Domains, click Add Domain.
Step 3: Provide the name of the domain with your choice of extension under Domain name field. This will be website Internet address.
Step 4: Under Hosting Settings, your root directory will be automatically generated. Select your preferred domain name from the drop down and click OK.