Katalon Studio 5.8 introduces new exclusive features for API testing project in which you can Import WSDL or Swagger definition from URL/File to Katalon Studio. You can also use draft request to test out with different data before saving it to the object repository.
For more details, please check this documentation out or get the latest version of Katalon Studio here.
I have used Katalon Studio 5.10.1 to import my local WSDL and it works somehow.
But the blocking point for me is that I can not overwrite the internal Endpoint location in Object Repository
and I don’t whant to overwrite the WSDL data