Add possibility to add proxy to a request

[ghost]

It would be realy great if you could add the possibility to add the proxy argument by the schema definition, e.g.:
proxy:
http: "123.123.123.12:52"
https: "123.123.123.12:52"

If you can show me an option on how to do this right now, I would be very happy to do so ;)

[ghost]

Not relevant anymore