Hello,
Sorry for the late response.
Unfortunately, the KW41 won’t be able to achieve two beacons simultaneously, not even changing the ADV data on the fly.
You will need to stop advertising, change ADV data, re-start advertising; this approach may show the two beacons OTA, but this might not fulfill the ADV interval and other system requirements.
Other choice you can have it’s to use the GENFSK link layer and have them generate the beacons packets, the only drawback here is that your application must keep track of the timings and changing the ADV channels manually.
Best Regards,
Estephania