Not supported by SBC SWe Lite in this release.
You can export the existing certificate installed on the Ribbon SBA at anytime by following these simple steps:
You are able to export a PKCS12 Certificate and Key as follows:
In the left navigation pane, under Skype™ for Business Survivable Branch, click SBA Certificate.
Click the Import/Export Certificate tab.
From the Action drop down list, select Export PKCS12 Certificate and Key.
Export PKCS12 Certificate and Key
In the Password box, enter the password. See Importing an SBA Certificate.
The password is user generated/supplied. This will be required when Importing an SBA Certificate for this certificate on another node.
Click OK.