We're currently running 5.0.2, looking to upgrade to 5.0.7 and test the ZCB add-on. We have our Zimbra server set up with HTTPS running on port 4443 instead of 443. All that I see in the documentation regarding ports is

Important: ZCB connects to ZCS on ports 443 and 7071. These ports must be open for ZCB to run. Refer to Figure1 on page2.
Will this be a problem when we try to use the ZCB? Does anybody know if there's a way to change the HTTPS port that ZCB connects on?