Many people has been asking about migrating from MQX RTOS to MQX RTOS for KSDK. Such guide is now available in the following link:
If you need to create a new MQX RTOS for KSDK project please note that there is not a New MQX for KSDK Project Wizard, therefore it is necessary to create it manually. You can find a guide in the link below.
Technical Support Engineer