Few customers ask to have a dedicated IP on the domain. This kb applies to dedicated servers only that have more than one IP. For our SSDVPS it will only have 1 IP where client can choose to make it dedicated if needed.
1. Login to your Plesk Panel with Admin Credentials.
2. Click on the Domains.
3. Search for the website name of which you want to change the IP Address.
4. Click on Hosting & DNS and then Web Hosting Access
5. From IP Address dropdown, Select the IP Address hit the OK button.