Reference:
Site.pro module is installed on CentOS Web Panel by default.
By default Site.pro module is using free limited builder version.
To unlock all features, you need to enter API credentials in module settings on CWP admin area. Scroll down this page to see how to get them.
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Site.pro API URL: [API URL will appear after you log in or sign up]
Username: [API Username will appear after you log in or sign up]
Password: [API Password will appear after you log in or sign up]
If you want to unlock all features, you need to take the following steps:
Note: Do steps 1—6 only if you haven't already done them earlier.
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Add support of CWP panel on WHMCS, following this instruction: http://wiki.centos-webpanel.com/whmcs-module-for-cwp-api.
Then follow steps below.
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If you have questions about builder or a module or need other assistance you can contact us by creating a ticket.