POST Request params from WADL

I have imported our projects WADL into SoapUI, but the post requests do not have any params listed when I try to create a post.

I looked for other WADLs in the wild to see if they work, and I found other wadl files, but they don't work either.

e.g. http://www.opentripplanner.org/apidoc

http://www.opentripplanner.org/apidoc/application.wadl

The POST request for rest/patch/patch has no params when you try to create the request, although a representation is listed in the wadl

The WADL from fedora does work with post, but the params are explicitly defined, rather than using a representation element

fedora-commons.org/documentation/3.0b1/userdocs/server/webservices/rest/index.html#wadl

Is this a SoapUI limitation?

Alan