I’m replying, not because I have a solution but because I am rather interested in what you’ve tried as I am hoping to do something similar with the nRF52811 (a stripped down version of the nRF52840). I too posted the forum waiting for an answer.
My hunch, as yet to try, is to look at the MBED OS library target folder. There you will find all the config settings for the nRF52832. As to what is the best approach to make a modification, who knows…
