In order to add a domain alias in your Windows-based Hosting subscribed by WebSouls, please follow below steps:

Step-1:
Login to plesk panel as shown in below image:

Step-2:
Locate domain Alias feature as shown in below image:

 Enter your domain name and click OK as shown in below image:

We hope that the above article was beneficial to you if you liked it please give us thumbs up.

Technical Support,
Triwor