I see a lot of images like this with version switch in dropdown. Apparently this thing should show only the routes of requested version (we can only see V1 routes on the screenshot but if we switch to V2 in dropdown - we'll see routes only for V2).
Is this "Select a definition" feature part of OpenAPI specification or some tweaked Swagger UI implementations? How could i do something like this in Swagger Editor? I can't find docs or examples in yaml about it.