The Cloudfence OPNsense's plugins repository is available in two versions:
After installed and enabled, this will be the default Cloudfence's repository version. Isn't needed any additional step to have access to it, just install and enable it.
For customers that sign up for a subscription support plan, a subscription key will be generated and it will give access to the Premium repository. The Web Filter plugin, for example, has a premium version with exclusive features.