In order to change the nameservers, you would log in to your client area and perform the following steps:
- Click Domains
- Click on the down area to the right of your domain name
- Click Manage Nameservers
- Select "Use Custom Nameservers"
- Enter the desired nameservers (up to 5) into the provided fields.
- Click Change Nameservers.
When completing step 5, deleting all text in the box will remove the name server.