MKRWAN.h edit? 433MhZ inclusion?

Has anyone tried to modify the MKRWAN.h library to include the EU433MhZ frequency? The process for provisioning a node to Chirpstack/ RAK Wireless is so much easier than LoRa.H library.

There are threads within the former MKR1300 that are similar to this question. However, the response was to setup the frequency as 433E6 and is aligned with the LoRa.h library process and not the MKWAN.h library.