We have a requirement to migrate APIs from one Portal instance (Portal 4.2) to other, for e.g. from Development Portal instance to UAT Portal and Production Portal instances. Development API Gateway is enrolled with Development Portal instance while UAT API Gateway is enrolled with UAT Portal Instance. While the below documentation suggest steps to manage API deployments across proxies on the same Portal instance, there is no documentation around migrating APIs from one portal instance to other. It would be good to know how other projects are handling this type of requirement.