Sorry about that. currently using SoapUI 5.0.0 I have added our wadl to my project. now, the devs have updated the wadl and i need to update my wadl list. at my last job, we also used soap, but used wsdls, and that feature had a "refresh wsdl" or something like that. so it would grab any new ones that showed up in the wsdl URL. for wadls we dont seem to have that. I thought i could just removed and re add the wadl but that would mess up all the soap tests that are associated to them.
If you are using SoapUI 5.0, and wadl is online (available/hosted on web) then you should be able to update as per below screen shot (marked in yellow) by double clicking on Interface and navigate to WADL content tab, then click on refresh. However, am not sure about offline wadl file.