Set MAC "syncword" to private/public

[LasaleFamine]

I'm trying to set the "syncword" based on this article. I want to try the private 0x12 syncword but I can't find a way to set it using the library. You can find more details on the RN2483 documentation where it says it's configured to 0x34 (public) syncword by default.

Do you think can be possible to expose a function from the library that would set the syncword based on the spec to 0x34 or 0x12 when requested?