Multiple identically-named request parameters?

I have a REST service that accepts multiple request parameters having the same name. E.g.:

http://example.com/rest/api?foo=1000&foo=2000

I have SoapUI Pro 3.5.1 and the request builder won't let me add more than 1 request parameter with a given name.

Is there a way to construct a test request with multiple request parameters named the same?

Thanks!