REST Inputs missing when moving soapUI 2.5.1 to 4.5.1

Most of our developers are utilizing soapUI 2.5.1 to create REST service tests. In the project, they add input values and they are able to execute the call to the service. When they save the project and open it with 4.5.1, the input values for the service are missing.

We have also created test suites and test cases off of these services in 2.5.1 with input values. When we examine the test cases, the values are present as expected and the test cases work fine.

Is there a conversion tool or a way to have our 2.5.1 projects migrated to 4.5.1 to have the REST service input values avaialble?