1. I'm not sure what you mean by "multiple gateway" but you can direct Fiddler to use a particular upstream proxy for a given request; just set the
oSession["x-overrideGateway"] = "1.2.3.4:8080" session flag with the value of the target gateway proxy to use, or set to
DIRECT to send the request directly to the server.
2. Please be more specific about what exactly isn't working here?