This isn't a complete Add on module for WHMCS, and the instructions do not include how to set up configurable options for additional user accounts when purchasing. It also doesn't provide the ability to purchase more than one seat at checkout, like the installation instructions say. The module settings in Add New Product are set for 10 seats, but that doesn't show up on the order form in WHMCS. Actually, there is no Addon Module. You set up a server like with cPanel in Products/Service-->>Servers.
They will need to do a bit more work on this before it is usable. Too bad.
Great product! What a godsend when trying to set up domains and keep their pricing in line.
Thank you Nancy, glad to know you like it!