Hi Daniel, I hope you're doing well!
The JN-AN-1242 Application Note for the K32W is designed as a test mode for IEEE 802.15.4-based communications protocols, like ZigBee.
The CMET is not designed for use with the Bluetooth Stack, instead, there are some SDK Examples included which can help perform tests with this protocol, like the HCI Blackbox in combination with the NXP Test Tool, available to download from this page.
<...\SDK_2.6.0_K32W061DK6\boards\k32w061dk6\wireless_examples\bluetooth\hci_bb>
Information on how to run this SDK example can be found in the following document, included in the SDK's Documentation package:
<…\SDK_2.6.0_K32W061DK6_doc\docs\wireless\Bluetooth\Bluetooth Low Energy Demo Applications User's Guide.pdf>
Please let me know if you need any more information.
Take care, best regards,
Sebastian