First just a disclaimer, we only offer unique IPs, not static ones. This means no one else will be sharing the IP, but it may change at some point. To add a unique IP, head to your Domains > Manage Domains page, and click "Add IP" under the domain you'd like to add it for. You have the options to pay $3.95/mo, or $43.13/yr. Hope this helps. Let me know if you need anything else.