Thank you for contacting Hostjill.com.
Here is how you can host your new domain in the existing server.
STEP 1: Change your Domain Name Servers (DNS) in NameCheap.
==>https://youtu.be/sMhEa6bDaVA
STEP 2: ADD ON the new domain in the existing cPanel.
To Add-on new domain:
1. Login into your EXISTING cpanel (http://www.yourdomainname.com/cpanel)
2. Click on ‘Addon Domain’.
3. Fill in the "New Domain Name field.
4. Click on the "Subdomain" field and it will automatically filled in.
5. Set you password.
6. Click "Add Domain".
STEP 3: Install Wordpress like usual.
1. Login to cPanel.
2. Look for Wordpress/Softaculous logo.
3. Click "Instal".
4. Under select domain, select the new domain name from the drop down.
5. Fill in all the necessary field.
6. Click "Instal".
Good luck!
