Hello Bryan,
Just to complement the last answer I'd like to clarify that there are some differences in pinout between the KW30Z and the KW40Z so you need to make changes in your hardware design (see the image below from the KW20Z/KW30Z/KW40Z datasheet). However, as I said, the KW40Z Connectivity Software works either for the KW40Z and the KW30Z, the only one needed extra action is to change the Device in the project options.

Best regards,
Earl Ramírez.