existing list of addons?

Currently using Zpanel 10.1.1 on CentOS 6.5, for the most part it does what i need.  I see that CWP supports addons, is there an autoprovision add-on that ties to paypal standard? Is there a list of available add-ons? I'm looking for a replacement to zpanel, i'm a small time webhoster and wouldn't mind at all to make a donation.  I was making a donation to zpanel for every new client i signed up but then found out it was being sold.

If this wasn't the correct place for my questions i apologize.

Btw the interface looks awesome and i'm very impressed with the feature set... have to make sure i can bill and auto provision.

cwp doesn't have a billing at least not at the moment.

I see they have added WHMCS now. I am not sure if it will work the accounts out automatically or not.